early signs of glaucoma Archives - Armadale Eye Clinic

How Is Glaucoma Diagnosed? What to Know About Glaucoma Tests

February 2, 2026/0 Comments/in Armadale Eye Blogs /by Armadale Eye Clinic Team

Glaucoma is a group of eye diseases that can potentially lead to vision loss. But how is glaucoma diagnosed?

Understanding its diagnosis is an essential step in protecting your eye health and maintaining your quality of life. Early detection and timely management are necessary for slowing disease progression and preventing irreversible vision loss.

Understanding Glaucoma

Glaucoma primarily affects the optic nerve, which connects your eye to your brain. Damage to the optic nerve can happen when the pressure inside the eye becomes elevated, a condition known as high eye pressure or increased intraocular pressure.

While some types of glaucoma are associated with elevated eye pressure, other forms can occur even when eye pressure is within the normal range.

Glaucoma often progresses slowly, with minimal symptoms in the early stages. This makes regular eye examinations crucial, especially for individuals at higher risk.

Types of Glaucoma

Understanding the types of glaucoma is essential for both early detection and informed management. Each type affects the optic nerve differently, and recognising the specific form can help your eye doctor select the appropriate glaucoma test and treatment plan.

Primary Open-Angle Glaucoma

Primary open-angle glaucoma is a common form of glaucoma. It develops gradually, often without noticeable vision loss in the early stages. The optic nerve slowly sustains damage, typically affecting peripheral vision first.

Because obvious symptoms may not appear until later, regular comprehensive eye tests are crucial for early detection. Identifying this type early allows for interventions such as prescription eye drops or laser treatment to help lower eye pressure and slow disease progression.

Angle-Closure Glaucoma

Angle-closure glaucoma can appear suddenly and may be a medical emergency. Symptoms may include severe eye pain, pressure in your eye, blurred vision, headache, and occasionally nausea. Immediate assessment is essential to prevent rapid optic nerve damage and irreversible vision loss.

Early recognition and intervention, including laser surgery or other surgical procedures, can stabilise eye pressure and protect vision.

Congenital Glaucoma

Congenital glaucoma is present at birth, caused by abnormalities in the eye’s drainage system. Infants may show signs such as cloudy corneas, dilated pupils, or light sensitivity.

Prompt diagnosis is critical for protecting eye health and supporting normal visual development. Treatments may include surgical procedures to improve fluid drainage and effectively manage pressure inside the eye.

Normal-Tension Glaucoma

Normal-tension glaucoma is characterised by optic nerve damage even when eye pressure is within the normal range. Contributing factors may include low blood pressure, a thin cornea, or other medical conditions that affect blood flow to the optic nerve.

Diagnosis often relies on visual field tests and careful monitoring rather than eye pressure tests alone. Early detection is key to developing a personalised treatment plan and slowing disease progression.

Identifying the type of glaucoma is important because it directly informs which diagnostic tests and treatment options are appropriate.

Whether managing open-angle glaucoma with prescription eye drops, addressing angle-closure glaucoma with laser surgery, or monitoring normal-tension glaucoma, understanding the distinctions enables you to actively take care of your eye health.

Risk Factors That Influence Diagnosis

Certain factors increase the likelihood that a person may develop glaucoma:

Family history of glaucoma or being a glaucoma suspect.
Age over 40, particularly in people with thin corneas.
Existing medical conditions, like diabetes or cardiovascular disease.
Previous eye injuries or history of cataract surgery.

Being aware of these factors can help you and your eye doctor prioritise early detection and timely management.

The Role of a Comprehensive Eye Exam

A detailed eye exam is a key step in understanding how glaucoma is diagnosed. During such an exam, an eye doctor may evaluate several aspects of eye health. These assessments help identify potential signs of optic nerve damage or vision changes, which are important for monitoring disease progression.

Regular eye examinations allow for observation of changes over time. This ongoing monitoring can support early detection and help guide appropriate treatment options before significant vision loss occurs.

Measuring Eye Pressure

Assessing intraocular pressure is often one of the first considerations in a glaucoma assessment. Elevated intraocular pressure can indicate a higher risk of optic nerve damage, though high pressure alone does not confirm a diagnosis.

An eye doctor may use different approaches to estimate eye pressure, and the findings can inform whether additional evaluation or monitoring is needed.

Examining the Optic Nerve

Evaluating the optic nerve can provide insight into possible early signs of glaucoma. Some methods allow doctors to view the optic nerve more closely or track subtle changes over time.

This can help understand how the condition might be progressing, even if vision loss is not yet noticeable.

Assessing Peripheral Vision

Checking peripheral vision can indicate early areas of vision loss. Changes in side vision or the development of blind spots may reflect optic nerve changes.

This aspect of assessment can help determine whether further observation or intervention might be beneficial.

Considering the Eye’s Drainage System

The eye’s drainage system regulates fluid and helps maintain intraocular pressure within a healthy range. An assessment of how well fluid flows through the eye can provide information about potential risk factors for glaucoma.

Understanding the eye’s drainage capacity can help inform different treatment approaches, though not every clinic may perform detailed drainage system testing during routine exams.

Additional Considerations

Other factors, such as corneal thickness or blood pressure, may influence risk and eye pressure readings. These elements can be relevant in assessing the likelihood of developing glaucoma or monitoring disease progression over time.

By combining information from eye pressure measurements, optic nerve evaluation, vision assessment, and other factors, a comprehensive exam can provide a broader understanding of eye health and potential glaucoma risk. While each clinic may offer different types of eye assessments, knowing what to expect can help you feel more prepared for a glaucoma evaluation.

Managing Glaucoma

Once glaucoma is diagnosed, the primary goal is to lower eye pressure and prevent further optic nerve damage. The approach to management varies depending on the type of glaucoma, the disease progression, and your overall eye health.

A tailored plan allows your eye doctor to address your specific needs while supporting long-term vision preservation.

Prescription Eye Drops

Prescription eye drops are often the first line of treatment. These medications lower eye pressure by either reducing fluid production in the eye or helping the eye drain excess fluid more effectively.

Consistent use as directed by your eye doctor can slow optic nerve damage and support early treatment outcomes.

Laser Treatment

Laser procedures provide targeted methods to assist with eye pressure management. Two laser surgeries are:

YAG Laser Iridotomy: Often recommended for angle-closure glaucoma, this procedure creates a small opening in the iris to improve fluid circulation.
Selective Laser Trabeculoplasty (SLT): Typically used for open-angle glaucoma, SLT targets the drainage system to enhance fluid outflow and help lower eye pressure.

Laser treatment can complement eye drops or, in some cases, serve as a primary intervention, depending on your condition.

Minimally Invasive Glaucoma Surgery (MIGS)

For patients requiring surgical intervention, the clinic offers minimally invasive glaucoma surgery (MIGS), including:

iStent: A tiny implant placed in the drainage angle to facilitate fluid outflow.
Hydrus Microstent: Designed to expand the drainage system, assisting with intraocular pressure reduction.

MIGS procedures are designed to support effective fluid drainage and generally offer shorter recovery times than traditional surgeries.

A successful management strategy is guided by your eye doctor and tailored to your individual needs. Factors such as glaucoma type, optic nerve health, eye pressure, and other risk factors influence the recommended treatment options.

Ongoing monitoring through comprehensive eye exams ensures that the treatment plan evolves as your condition progresses.

By combining early detection, consistent monitoring, and a personalised approach, it is possible to slow disease progression, preserve vision, and maintain overall eye health.

Frequently Asked Questions

How often should glaucoma be monitored once diagnosed?

Monitoring frequency depends on the type and severity of glaucoma. Early stages may require check-ups every 6–12 months, while more advanced cases may need closer monitoring to ensure treatment effectiveness and detect changes in optic nerve health.

Can glaucoma be prevented?

While glaucoma cannot always be prevented, early detection, regular glaucoma exams, and consistent monitoring can help reduce the risk of irreversible vision loss. Maintaining overall eye health and managing medical conditions, such as high blood pressure, also supports prevention.

How does a thin cornea affect glaucoma risk?

A thin cornea can influence eye pressure readings and may be associated with a higher risk of developing glaucoma. Your eye doctor may consider corneal thickness when interpreting eye pressure tests and designing a treatment plan.

Can low or high blood pressure affect glaucoma?

Yes. High blood pressure may increase intraocular pressure, while low blood pressure can reduce blood flow to the optic nerve, both of which can contribute to optic nerve damage. Blood pressure management is considered part of overall eye health.

Can cataract surgery affect glaucoma?

In some cases, cataract surgery may help lower eye pressure by improving fluid drainage. Your eye doctor may recommend this procedure as part of a broader treatment plan for certain types of glaucoma.

Conclusion

Understanding how glaucoma is diagnosed helps you take proactive steps towards maintaining eye health. A combination of comprehensive eye exams ensures an accurate glaucoma diagnosis.

When detected early, glaucoma treatment can help slow disease progression and support long-term vision.

Regular check-ups, awareness of risk factors, and prompt attention to sudden symptoms are vital components of maintaining eye health. Working closely with your eye doctor allows you to develop a tailored treatment plan that protects your vision.

If you’re due for a comprehensive eye exam or have concerns about eye pressure, optic nerve health, or your risk factors, our experienced eye doctors are here to guide you.

Book a consultation with Armadale Eye Clinic at (03) 9070 5753 to discuss your personalised glaucoma assessment and explore the treatment options available to support your long-term vision. Early evaluation can ensure your eyes receive the attention they deserve.

Note: Any surgical or invasive procedure carries risks. Before proceeding, you should seek a second opinion from an appropriately qualified health practitioner.

References

Reddy, N. (2024, February 5). Laser Surgery for Glaucoma: How It Works and What to Expect. GoodRx. Retrieved November 24, 2025, from https://www.goodrx.com/conditions/glaucoma/glaucoma-surgery

Reiff Ellis, R. (2024, December 30). What is Acute Angle Closure Glaucoma? WebMD. Retrieved November 24, 2025, from https://www.webmd.com/eye-health/acute-angle-closure-glaucoma

Tee-Melegrito, R. A. (2023, May 18). What Does Glaucoma Vision Look Like? Medical News Today. Retrieved November 24, 2025, from https://www.medicalnewstoday.com/articles/what-does-glaucoma-vision-look-like

The Healthline Editorial Team. (2025, April 8). What To Know About Glaucoma. Healthline. Retrieved November 24, 2025, from https://www.healthline.com/health/glaucoma

Understanding Glaucoma and High Blood Pressure: What to Know

November 20, 2025/0 Comments/in Armadale Eye Blogs /by Armadale Eye Clinic Team

The relationship between glaucoma and high blood pressure is a subject of ongoing clinical interest. Both conditions involve the regulation of pressure and blood flow within sensitive body systems: the eyes and the cardiovascular network. Understanding how blood pressure influences the eyes can help you make informed decisions about monitoring and maintaining your vision health.

This article examines how glaucoma and high blood pressure interact, what risk factors may increase susceptibility, and how blood pressure management can contribute to maintaining healthy vision. It also provides information on diagnosis and treatment approaches.

Overview of Glaucoma

Glaucoma is a group of conditions involving damage to the optic nerve, which is responsible for sending information from the eye to the brain.

When this nerve suffers damage, vision can gradually decrease over time. This process is often linked to increased pressure inside the eye, known as intraocular pressure (IOP), but can also happen even when eye pressure appears normal.

Overview of High Blood Pressure

High blood pressure, also known as hypertension, happens when the force of blood pushing against the arteries’ walls remains elevated for a prolonged period. It can affect different organs, including the heart, kidneys, and eyes.

Long-term high blood pressure may alter blood flow to delicate tissues, including those in the eyes, influencing eye pressure and possibly contributing to optic nerve damage.

How Blood Pressure Affects Eye Pressure

Blood pressure and eye pressure share a complex relationship. Both affect the overall perfusion pressure of the optic nerve.

High blood pressure may lead to changes in the small blood vessels supplying the eye. In contrast, low blood pressure may reduce ocular perfusion pressure, affecting the optic nerve’s oxygen and nutrient supply.

The Role of the Optic Nerve in Eyesight

The optic nerve consists of nerve fibres. These fibres carry signals from the retina to the brain, where images are processed. Maintaining consistent blood flow and oxygen delivery to this nerve is crucial for preserving vision.

How Pressure Changes Can Lead to Optic Nerve Damage

When intraocular pressure becomes elevated, it can compress the optic nerve fibres and disrupt blood flow, which may lead to structural damage over time. Even in cases of normal tension glaucoma, where eye pressure is not raised, the optic nerve may still be affected if blood pressure is too low to maintain sufficient perfusion.

Intraocular Pressure and Its Importance

Normal eye pressure mostly ranges between 10 and 21 mmHg, but this can vary from person to person. Maintaining balanced pressure inside the eye is essential for proper function and structural stability.

What Happens When Eye Pressure Rises

Raised or elevated eye pressure, known as ocular hypertension, can occur when too much fluid builds up in the eye.

This fluid, called aqueous humour, is produced continuously and drains through a small system in the anterior chamber. If the drainage system does not function properly, pressure may increase, potentially threatening the optic nerve.

Types of Glaucoma and Their Relationship With Blood Pressure

Glaucoma can develop in several forms, each influenced by blood pressure and eye pressure regulation.

Primary Open Angle Glaucoma

This is one form of glaucoma that develops slowly when the eye’s drainage system becomes less efficient. Individuals with high intraocular pressure and elevated blood pressure may have a higher risk of having this condition.

Normal Tension Glaucoma

Normal tension glaucoma occurs when optic nerve damage develops despite eye pressure being within the normal range. In many cases, low blood pressure or low ocular perfusion pressure may contribute to reduced blood flow to the optic nerve.

Angle-Closure Glaucoma

This type may occur when the drainage angle between the iris and cornea becomes blocked, potentially causing a rapid rise in eye pressure. Sudden pressure changes can disrupt blood flow and place stress on the optic nerve, requiring prompt assessment and management.

The Role of Ocular Perfusion Pressure

Ocular perfusion pressure represents the difference between blood pressure and intraocular pressure. Adequate perfusion pressure ensures that oxygen and nutrients reach the optic nerve and surrounding tissues effectively.

Low Ocular Perfusion Pressure and Vision Health

When blood pressure is too low or intraocular pressure is too high, ocular perfusion pressure drops. Over time, this can compromise optic nerve function, especially in glaucoma patients or those with vascular health issues.

Understanding Perfusion Pressure in Glaucoma Patients

Both high blood pressure and low blood pressure can influence perfusion pressure. Stable systemic blood pressure supports consistent ocular perfusion, which is vital for individuals with glaucoma or ocular hypertension.

Blood Pressure Levels and Eye Health

High BP can affect the delicate blood vessels that nourish the eye. Over time, this may alter the balance of fluid production and drainage, influencing eye pressure.

Low blood pressure might result in insufficient blood flow to the optic nerve, especially during sleep. This condition may contribute to normal tension glaucoma.

Maintaining Balanced Blood Pressure Control

Balanced blood pressure control supports both general and eye health. Managing systemic pressure may help with the perfusion to the optic nerve and lower the likelihood of developing pressure-related eye problems.

Risk Factors for Glaucoma

Several factors can increase the likelihood of developing glaucoma. Understanding these helps support early detection and appropriate management strategies.

Family History of Glaucoma

A family history of glaucoma may increase the likelihood of developing the condition. Genetic factors can influence both eye structure and how the eye regulates fluid and pressure.

Extreme Short-Sightedness

Individuals with extreme short-sightedness, or myopia, may have structural eye changes that increase susceptibility to raised eye pressure.

Age and Other Medical Conditions

The risk of glaucoma increases with age. Other medical conditions, such as diabetes and heart disease, may further affect blood vessel health and eye pressure.

Heart Disease and Blood Vessel Health

Since glaucoma involves both pressure and blood flow, cardiovascular health plays a role. Proper blood vessel function may be associated with normal perfusion pressure and optic nerve health.

Recognising the Signs of Glaucoma

Glaucoma often progresses gradually, making early detection through regular eye exams essential.

While symptoms may not always be obvious, understanding the potential warning signs can help you stay proactive about your eye health.

Early Changes in Side Vision

Glaucoma often affects peripheral or side vision first. This gradual loss can go unnoticed until it becomes more advanced.

Subtle Symptoms That May Be Overlooked

Most glaucoma patients do not experience noticeable pain or discomfort. Regular eye exams help detect small changes in vision or pressure early.

Importance of Regular Eye Exams

Comprehensive eye exams allow an eye doctor to monitor intraocular pressure, optic nerve condition, and other risk factors. Early detection plays a key role in maintaining healthy vision.

Managing Glaucoma and High Blood Pressure

Blood flow to the optic nerve can be influenced by both glaucoma and high blood pressure. Management often involves addressing these conditions through medical assessment and monitoring to maintain stable eye pressure and consistent ocular perfusion.

Blood Pressure Control Strategies

Maintaining healthy blood pressure levels supports consistent ocular perfusion. Working with healthcare professionals helps identify appropriate management approaches.

Glaucoma Treatment Options

Glaucoma treatment focuses on lowering intraocular pressure to protect the optic nerve. Options include prescription eye drops, laser therapy, or surgery, depending on individual circumstances.

Frequently Asked Questions

What is ocular hypertension?

Ocular hypertension refers to consistently high intraocular pressure without visible damage to the optic nerve. If left untreated, this condition may progress to glaucoma. Regular monitoring by an eye doctor helps detect early signs of change in optic nerve health.

What is ocular perfusion pressure?

Ocular perfusion pressure is the balance between blood pressure and intraocular pressure. It represents how much blood reaches the optic nerve, ensuring oxygen and nutrients are delivered effectively.

How often should I have an eye exam if I have high BP?

People with high blood pressure are encouraged to have regular eye exams, typically every one to two years, or as recommended by their eye doctor.

Conclusion

Glaucoma and high blood pressure are interconnected conditions that share important physiological pathways involving blood flow and pressure regulation. Understanding their relationship helps in maintaining both systemic and ocular health.

Regular eye exams, consistent blood pressure monitoring, and professional guidance from qualified eye doctors should help identify and manage risk factors. Balanced care supports long-term eye health and visual function.

If you have concerns about your eye health or blood pressure, consider scheduling a comprehensive eye exam with Armadale Eye Clinic at (03) 9070 5753.

A professional assessment can help monitor intraocular pressure, evaluate the optic nerve, and discuss management options based on your individual needs.

Note: Any surgical or invasive procedure carries risks. Before proceeding, you should seek a second opinion from an appropriately qualified health practitioner.

References

Healthdirect Australia. (2024, May). Glaucoma. Healthdirect. Retrieved October 13, 2025, from https://www.healthdirect.gov.au/glaucoma

Moore, W. (2024, December 31). What Is Open-Angle Glaucoma? WebMD. Retrieved October 13, 2025, from https://www.webmd.com/eye-health/eye-open-angle-glaucoma

P Lin, A. (2025, March 27). Acute Angle-Closure Glaucoma (AACG). Medscape. Retrieved October 13, 2025, from https://emedicine.medscape.com/article/1206956-overview

Tee-Melegrito, R. A. (2023, May 18). What does glaucoma vision look like? Medical News Today. Retrieved October 13, 2025, from https://www.medicalnewstoday.com/articles/what-does-glaucoma-vision-look-like

Is There A Difference Before And After Glaucoma Surgery?

June 16, 2025/0 Comments/in Armadale Eye Blogs /by Armadale Eye Clinic Team

Glaucoma can be a complex condition to navigate, especially when you’re trying to understand what to expect before and after glaucoma surgery.

Whether you’re newly diagnosed, researching treatment options, or have been managing glaucoma for years, this guide is here to help you gain clarity. We’ll walk through every stage, from preparation to recovery, so that you can feel more confident in your next steps.

What Is Glaucoma?

Glaucoma is a set of eye diseases that can ruin the optic nerve, the part that sends visual information to the brain. This damage often occurs due to high intraocular pressure (IOP), which leads to a build-up of fluid and increased pressure.

Types Of Glaucoma

There are various types of glaucoma, and each type requires tailored treatment. Here’s a breakdown of the most common forms:

Primary Open-Angle Glaucoma: This is the most widespread form of glaucoma that occurs when the eye’s natural drainage system becomes less efficient over time, causing fluid to build up and increasing eye pressure. It typically develops gradually and may not show noticeable symptoms until significant damage has occurred.
Angle-Closure Glaucoma (Closed-Angle Glaucoma): This is a more acute form of glaucoma, where the eye’s drainage angle becomes blocked, causing an accelerated rise in IOP. It can cause sudden vision loss and require prompt medical attention.
Secondary Glaucoma: This type develops due to another medical condition or injury. It can be caused by diabetes or medications that increase eye pressure.
Traumatic Glaucoma: This form occurs after an injury to the eye, which can disrupt the flow of fluid, leading to increased pressure and potential damage to the optic nerve.
Moderate Glaucoma: This refers to glaucoma in its intermediate stage, where eye pressure has risen enough to cause some damage to the optic nerve, but it’s not yet in its advanced stages.

Is There A Difference Before And After Glaucoma Surgery?

Yes, but the difference isn’t always about immediate, dramatic changes in vision. Instead, the biggest shift is often in how glaucoma is managed. Many patients find that their eye pressure becomes more stable, and they may rely less on medical therapy. With early intervention, surgery can also help protect the eye from further damage.

Types Of Glaucoma Surgery

Several types of glaucoma surgery aim to reduce intraocular pressure and prevent optic nerve damage. The most common include:

MIGS Procedures (Minimally Invasive Glaucoma Surgery): These newer surgical options offer a quicker recovery process and are typically suitable for those with mild to moderate glaucoma. Examples include iStent and Hydrus microstent implants.
SLT Laser Procedures (Selective Laser Trabeculoplasty): A laser surgery that targets the trabecular meshwork to improve fluid drainage. It’s minimally invasive and often used as an early intervention.
YAG laser iridotomy: YAG laser iridotomy, used primarily for closed-angle glaucoma, creates a small hole in the iris to improve fluid drainage and lower pressure.

What Happens Before Glaucoma Surgery?

Before undergoing glaucoma surgery, several important steps are taken to ensure the best possible outcome.

These include:

Preoperative Consultation: During your preoperative consultation, your eye surgeon will evaluate your specific type of glaucoma, review your current treatment plan, and recommend the most suitable surgical approach.
Adjusting Medications: Your surgeon may advise you to pause certain glaucoma drops or medications in the days leading up to surgery. They will provide clear guidance on which medications to stop and when to do so.
Preparing Mentally and Physically: You’ll discuss any health concerns with your surgeon, review the surgery process, and plan for post-surgery recovery. Additionally, you will be instructed not to wear eye makeup on the day of the surgery to avoid any complications.

The Day Of Surgery

On the day of your glaucoma treatment, here’s what to expect:

Arriving At The Location: Your surgery will take place in an operating room. You will remain awake throughout the procedure, but anaesthetic eye drops will numb the area. A mild sedative may also be administered to help you stay relaxed.
The Procedure: The surgery typically lasts between 30 and 90 minutes, depending on the type of procedure. Most patients experience minimal discomfort, and the surgery is usually completed as a day procedure, allowing you to go home the same day.

Recovery Process

The recovery process is straightforward, though there are important steps to follow. Here’s what to know:

The First Week: During the first week, you may experience mild discomfort, blurred vision, or light sensitivity. An eye shield may be recommended to protect the operated eye and upper eyelid while you sleep.
Eye Drops and Medications: Your surgeon will likely prescribe anti-inflammatory or antibiotic eye drops to promote healing and prevent infection. These will be different from your usual glaucoma medications.
Prevent Scarring: To avoid scarring, which can affect fluid drainage, certain medications or techniques may be used during or after the procedure to support proper healing.
Follow-Up Visits: You will have follow-up visits with your doctor over the first few weeks to monitor intraocular pressure and ensure that healing is progressing.

Combining Cataract Surgery And Glaucoma Surgery

Sometimes, glaucoma surgery is performed alongside cataract surgery. This can be efficient and offers the benefit of addressing two issues simultaneously.

Before And After Changes

Here’s what you may notice before and after your glaucoma surgery:

Daily Life Changes

After your surgery, you’ll likely be able to return to your normal activities within a few weeks. However, to ensure proper healing, it’s important to avoid strenuous activities and heavy lifting during the early stages of recovery.

Vision Differences

While glaucoma surgery typically doesn’t restore lost vision, it can help stabilise it and prevent further vision loss. You might notice improved clarity, especially if your surgery is combined with cataract surgery, which can also help reduce intraocular pressure.

Emotional And Lifestyle Benefits

After surgery, you may feel a sense of relief from the constant need to treat glaucoma. Reducing or eliminating reliance on daily eye drops or medications can significantly improve your quality of life and emotional well-being.

Risks And Considerations

Like all surgeries, glaucoma procedures carry some risks, including infection, inflammation, or temporary vision fluctuations. However, most surgeons carefully monitor these during follow-up.

More complicated issues, such as scarring or abnormal drainage, may occur but are usually manageable with additional treatment or medication.

Frequently Asked Questions

How will I know if the surgery was successful?

During follow-up visits, your surgeon will monitor your recovery and check for signs of healing and improved eye pressure. If eye pressure is stable and there are no complications, this typically indicates that the surgery was successful.

Can I wear makeup after surgery?

To minimise the risk of infection and ensure proper healing, it’s best to avoid wearing eye makeup for at least two weeks following surgery or as your surgeon advises.

Can I drive after glaucoma surgery?

It’s generally recommended to avoid driving until your vision has stabilised and you feel comfortable. Your doctor will guide you on when it is okay to resume driving.

Conclusion

Deciding whether glaucoma surgery is right for you can feel overwhelming, and that’s perfectly okay. But by learning what happens before and after glaucoma surgery, you’re already on the path to making an informed, confident choice.

Many patients who undergo glaucoma surgery describe feeling more in control of their treatment and relieved to have more stable eye pressure. The goal is always to lower eye pressure and preserve your vision for the future.

If you’ve been managing glaucoma with medications or laser surgery and are curious about your next steps, consider speaking with your eye doctor about your surgical options. Every eye is different, but the journey towards better eye health can start today.

If you are concerned about glaucoma or have questions about treatment options, we’re here in Melbourne to help.

Our experienced eye surgeons can guide you through the process and ensure you receive the best possible care.

Contact Armadale Eye Clinic at (03) 9070 5753 to schedule a consultation and learn more about how we can help you manage your glaucoma and protect your vision for the future.

Note: Any surgical or invasive procedure carries risks. Before proceeding, you should seek a second opinion from an appropriately qualified health practitioner.

Sources

Lin, A. P (2025) Acute Angle-Closure Glaucoma (AACG). In Medscape (ed. I. Irak Dersu). Available at: https://emedicine.medscape.com/article/1206956-overview?form=fpf (accessed 22 April 2025).

Moore, W. (2024) What Is Open-Angle Glaucoma? In WebMD. Available at: https://www.webmd.com/eye-health/eye-open-angle-glaucoma (accessed 22 April 2025).

Reddy, N. (2024) Laser Surgery for Glaucoma: How It Works and What to Expect. In GoodRx. Available at: https://www.goodrx.com/conditions/glaucoma/glaucoma-surgery (accessed 22 April 2025).

Winderl, A. Marturana (2023) A Guide to Glaucoma Surgery. In Health. Available at: https://www.health.com/condition/glaucoma/glaucoma-surgery (accessed 22 April 2025).

Does Glaucoma Cause Blindness? Everything You Need To Know

April 4, 2025/0 Comments/in Armadale Eye Blogs /by Armadale Eye Clinic Team

Glaucoma is said to take away your vision slowly because of its damage to the optic nerve, which is important for seeing clearly. But does glaucoma cause blindness?

In this article, you’ll learn how glaucoma affects your eyes, the different types of glaucoma, and what treatments are available. You’ll also discover steps you can take to protect your eyesight.

Does Glaucoma Cause Blindness?

Glaucoma harms the optic nerve, which helps your eyes send pictures to your brain. This damage often happens when eye pressure gets too high. The eye makes a clear fluid called aqueous humour, which usually drains out naturally.

But if this fluid does not drain properly, pressure builds up and eventually impairs the optic nerve. Over time, this might lead to permanent vision loss.

The Role Of Eye Pressure

Your eyes need normal pressure to keep their shape and work properly. But if the pressure inside the eye, called intraocular pressure (IOP), gets too high, it can press on the optic nerve and cause damage.

Some people can even develop glaucoma without high eye pressure. That’s why regular eye check-ups are so important!

Types Of Glaucoma And Their Impact On Vision

Glaucoma comes in different types, and each one affects your vision in its own way. Some types develop slowly and painlessly, while others appear suddenly and need quick treatment. Understanding the differences will help you know the amount of risk and take steps to protect your eyesight.

Primary Open-Angle Glaucoma (POAG)

This is a common type of glaucoma that occurs when the eye’s drainage angle becomes less efficient, causing pressure to build up.

It develops slowly and may not show any early signs.
Over time, it can cause peripheral vision loss (side vision).
Without treatment, blind spots may develop, leading to permanent vision loss.

Angle-Closure Glaucoma (ACG)

This type happens when the drainage angle suddenly closes, causing a quick rise in eye pressure. It can happen fast and needs emergency care.

Acute angle-closure glaucoma can cause bad eye pain, blurred vision, and nausea.
Chronic angle-closure glaucoma develops slowly but still damages the optic nerve over time.
If not managed, it can lead to vision loss.

Normal-Tension Glaucoma (NTG)

This type of glaucoma can damage the optic nerve, even when eye pressure is normal. The exact cause isn’t clear, but it might be because of poor blood flow to the optic nerve.

Vision loss happens slowly, making it hard to notice at first.
Regular eye exams are the way to catch it early.

Congenital Glaucoma

This less common type of glaucoma is present at birth. It happens when a baby’s eye fluid doesn’t drain properly.

Babies may have cloudy eyes, sensitivity to light, and excessive tearing.
If unmanaged, it can lead to blind spots, blurred vision, or permanent vision loss.
Early treatment can help protect the child’s eyesight.

Recognising The Symptoms Of Glaucoma

Glaucoma can be hard to notice at first because it often develops slowly and without pain. Many people don’t realise they have it until their vision starts changing. That’s why regular eye check-ups are so important!

As glaucoma gets worse, you may start to notice changes in your vision. Some signs to look out for include:

Changes In Peripheral Vision

One of the early signs of glaucoma is losing side vision. This can happen so slowly that you may not realise it at first.

At first, you may not notice small gaps in your side vision.
Over time, your vision may feel narrower, like you’re looking through a tunnel.
This can make it hard to see objects to the side while walking or driving.

Blurred Vision

Glaucoma can also make your vision blurry or foggy, making it harder to see clearly.

You might find it hard to focus on objects, especially up close.
Things may look foggy or unclear, even when wearing glasses.

Blind Spots

As the optic nerve gets damaged, you may notice dark spots in your vision.

Small dark or missing areas in your vision may appear.
These blind spots can grow, making it harder to see clearly.

Severe Eye Pain (Especially With AACG)

Some types of glaucoma, like acute angle-closure glaucoma, can cause sudden and intense eye pain. This is a medical emergency.

The pain may be severe and sharp.
It may come with nausea, vomiting, and headaches.
If you experience this, seek medical help immediately.

Vision Changes In Dim Lighting

If glaucoma progresses, you may struggle to see in low light or adjust to darkness.

Walking in a dark room may feel difficult.
Night driving may become more challenging.

Eye Redness And Discomfort

Your eyes may feel irritated or uncomfortable, especially as the pressure inside the eye increases.

Your eyes may look red or irritated.
They may feel sensitive to light.

How Is Glaucoma Diagnosed?

Glaucoma does not always cause early symptoms, so regular eye exams are necessary to catch it early. An eye doctor will look for signs of glaucoma before you even notice any vision changes.

To diagnose glaucoma, your eye doctor will perform a comprehensive dilated eye exam. This allows them to take a close look at your optic nerve, eye pressure, and vision. Here are some common tests they may use:

Visual Field Test

Glaucoma might cause blind spots in your vision, often without you realising it. A visual field test helps the doctor check if you have any missing areas in your sight.

You will be asked to focus on a target while responding to light signals.
This test maps out your field of vision to detect any changes.

Measuring Eye Pressure

Since eye pressure plays a big role in glaucoma, your doctor will check if it is within a healthy range.

This test helps determine if extra eye pressure may affect the optic nerve.
There are different ways to measure eye pressure, and your doctor will use the most suitable method.

Ocular Coherence Tomography (OCT)

The optic nerve delivers visual information to your brain. Glaucoma can damage this nerve, so your doctor will examine it carefully.

OCT helps check for any signs of damage.
Tracking changes in this nerve over time can help with early detection.

Checking The Eye’s Drainage System

For some people, fluid inside the eye does not drain properly, which can raise pressure levels.

Your doctor may assess how well fluid drains from your eye.
If needed, treatment options can help improve fluid flow.

Treatment Options For Glaucoma

Glaucoma can’t be cured, but early management can help slow down vision loss. The goal of management is to lower IOP and protect the optic nerve from further damage. Your eye doctor will suggest the best possible option based on your type of glaucoma, eye pressure levels, and eye health.

Eye Drops

Eye drops are often the first step in managing glaucoma. They help lower eye pressure by improving how fluid drains from the eye or reducing the amount of fluid it produces.

Eye drops must be used every day as prescribed.
They help control the pressure inside the eye to prevent further damage.
It’s important to use eye drops properly to get the best possible results.
Your doctor may adjust the type or dosage if needed.

Many people use glaucoma eye drops long-term to help manage their condition and keep their vision stable.

Laser Treatment

Laser therapy can help fluid flow more easily from the eye, reducing pressure levels. It is often recommended if eye drops aren’t enough to control the condition.

This is a comfortable procedure performed by an eye doctor.
It helps open the drainage angle to improve fluid flow.
It may reduce or end the need for eye drops in some cases.
Different types of laser treatments are available depending on the type of glaucoma. Some common laser treatments include:
- Selective Laser Trabeculoplasty (SLT laser): often used for open-angle glaucoma to improve drainage.
- YAG Laser Iridotomy: typically used for angle-closure glaucoma to create a small opening in the iris, allowing better fluid movement.

Laser therapy is an effective option for many people, but results can vary. Some individuals may need extra treatments over time to maintain healthy eye pressure.

Minimally Invasive Glaucoma Surgeries (MIGS)

Surgical procedures may be suggested for some individuals to help lower IOP and protect vision. MIGS, like iStent and Hydrus, offer faster recovery than traditional surgeries.

These procedures help fluid drain more efficiently from the eye.
They can often be performed alongside cataract surgery.
They may reduce the need for long-term medication.
Your eye doctor will discuss which surgical options may be suitable for you.

Preventing Glaucoma And Further Vision Loss

Taking care of your eyes and health can lower your risk. Here are some ways you can protect your vision:

Get regular eye exams to detect glaucoma early.
Keep high blood pressure and other health issues under control.
Wear safety glasses to prevent an eye injury.
Stick to a good lifestyle by eating a balanced diet, exercising, and avoiding smoking.

Frequently Asked Questions

Who is at higher risk of developing glaucoma?

Some people may have a higher risk of glaucoma if they:

Have a family history of glaucoma
Are over 40 years old
Have high eye pressure
Have high blood pressure or diabetes
Have experienced an eye injury

Can glaucoma cause headaches?

Yes, glaucoma can cause headaches. This happens when eye pressure gets too high. It is more common with acute angle-closure glaucoma. But if you have open-angle glaucoma, you may not get headaches.

Can wearing glasses or contact lenses prevent glaucoma?

No, glasses and contact lenses help you see clearly, but they do not stop glaucoma. The best way to protect your vision is to get regular eye check-ups.

Conclusion

Glaucoma is a serious eye disease that can lead to vision loss if not detected and managed early. Yet, there are ways to protect your eyesight.

Getting regular eye check-ups, following your treatment plan, and knowing your risk factors can help you take care of your vision.

Your vision is important. If you have questions about glaucoma or want to check your eye health, we’re here in Melbourne to help.

Book an eye exam today and take a step towards protecting your sight. Contact Armadale Eye Clinic today at (03) 9070 5753 to schedule your appointment!

Note: Any surgical or invasive procedure carries risks. Before proceeding, you should seek a second opinion from an appropriately qualified health practitioner.

Sources

Biggerstaff K S 2024. Primary Open-Angle Glaucoma (POAG): Practice Essentials, Background, Pathophysiology Dersu I Irak, editor. Medscape. Available at: https://emedicine.medscape.com/article/1206147-overview [Accessed February 7, 2025]

George R, Panda S & Vijaya L 2021. Blindness in Glaucoma: Primary Open-Angle Glaucoma Versus Primary Angle-Closure Glaucoma—a Meta-Analysis. Eye 36, 2099–2105. 10.1038/s41433-021-01802-9

Reddy N 2024. Laser Surgery for Glaucoma: How It Works and What to Expect. GoodRx. Available at: https://www.goodrx.com/conditions/glaucoma/glaucoma-surgery [Accessed February 7, 2025]

Smith H 2024. What to Know About Early Signs of Glaucoma. Medical News Today. Available at: https://www.medicalnewstoday.com/articles/early-signs-of-glaucoma [Accessed February 7, 2025]

Taylor M 2023. 11 Tips for Eating for Glaucoma. HealthCentral. Available at: https://www.healthcentral.com/slideshow/glaucoma-diet-nutrition-tips [Accessed February 7, 2025]

Ocular Hypertension Vs. Glaucoma: Key Differences To Know

February 19, 2025/0 Comments/in Armadale Eye Blogs /by Armadale Eye Clinic Team

Taking care of your eyes is important. Sometimes, the pressure inside your eyes can be too high, and this can cause problems. This article talks about ocular hypertension vs. glaucoma. Let’s learn about these two conditions and how they can be addressed.

What Is Ocular Hypertension?

Ocular hypertension happens when the pressure inside your eye is too high. Your eye has a fluid called aqueous humour that helps keep it healthy. If this fluid doesn’t drain properly, it can build up and raise the pressure in your eye.

Even though the pressure is high, it doesn’t hurt the eye’s optic nerve right away. But if you’re one of the untreated ocular hypertension patients, you may get glaucoma. That’s why getting ocular hypertension treated is necessary.

Most people with ocular hypertension don’t notice any changes in their vision. That’s why it’s really important to visit the eye doctor to have your eye pressure checked.

What Is Glaucoma?

Glaucoma is a disease that can hurt the optic nerve in your eye. It is often caused by high intraocular pressure, just like ocular hypertension.

If glaucoma is not treated, it can make you lose your vision. The good news is, if doctors find it early, treatment can help stop it from getting worse.

Types Of Glaucoma

There are different types of glaucoma, and they can affect your eyes in different ways. Let’s learn about the most common types:

Open-Angle Glaucoma

Open-angle glaucoma is the most common type. It happens when the eye’s drainage system works slowly, and the fluid in the eye can’t drain properly. This causes elevated eye pressure. Developing glaucoma of this kind may be gradual, so you might not notice any changes in your vision at first. That’s why it’s important to get regular eye exams to catch it early.

Angle-Closure Glaucoma

Angle-closure glaucoma is another common type, but it can be more serious. It happens when the drainage angle in the eye is blocked or narrow, causing the pressure to rise quickly. This can cause sudden symptoms like a headache, blurry vision, and eye pain. If you notice these signs, you should see your eye doctor right away.

Normal-Tension Glaucoma

In this glaucoma, people have normal eye pressure. Yet, the optic nerve still gets damaged. The cause of this is not understood, but it can happen when there is insufficient blood flow to the optic nerve. People with normal-tension glaucoma may not notice symptoms. So it’s important to see an eye doctor.

Congenital Glaucoma

Congenital glaucoma is a type of glaucoma that babies are born with. It happens when the drainage system in the eye doesn’t develop properly. If it’s not treated, it can damage the optic nerve and affect the baby’s vision. Babies with congenital glaucoma may have cloudy eyes or trouble seeing.

Secondary Glaucoma

Secondary glaucoma happens when another eye problem raises eye pressure. For example, an eye injury or infection can cause secondary glaucoma. Certain medicines, like steroids, can also increase the risk of secondary glaucoma.

Although each type of glaucoma is different, all can damage the optic nerve. It’s important to visit your doctor to check for signs of glaucoma, especially if you have a family history. Early detection may help protect your vision.

Ocular Hypertension Vs. Glaucoma: What’s The Difference?

In ocular hypertension, the pressure in the eye is high, but there’s no damage to the optic nerve yet. In glaucoma, the optic nerve damage is there because of the high pressure.

What Are The Symptoms?

People with ocular hypertension usually don’t feel anything. It’s called a “silent” condition because no obvious signs exist. That’s why it’s important to see the eye doctor.

Glaucoma, on the other hand, may start with blurry vision or seeing halos around lights. You might not notice it at first, but you could start losing side (peripheral) vision over time. If you notice any changes in your vision, it’s important to see your eye doctor.

Risk Factors For Ocular Hypertension And Glaucoma

Certain things can put you at risk of developing glaucoma or ocular hypertension. Some of these are:

Family History: If someone in your family has had glaucoma, this is a risk factor.
Age: People over 40 are more likely to develop these conditions.
High Blood Pressure: High blood pressure can increase the chances of eye problems.
Eye Injuries: Any injury to the eye can affect the pressure inside it.
Ethnicity: Those of African or Asian descent are at higher risk for glaucoma.

If you have any of these risk factors, it’s even more important to see your eye doctor for regular check-ups.

How Is Ocular Hypertension Diagnosed?

Ocular hypertension is usually found during a routine eye exam. Your eye doctor will use tonometry to measure the pressure in your eyes. They will also check the optic nerve to make sure it’s healthy.

How Is Glaucoma Diagnosed?

If your eye doctor thinks you may have glaucoma, they will do several tests. These might include:

Tonometry: To check the pressure in your eye.
Visual field test: To look at your side vision.
Eye exam: To check the nerve in your eye and see if there is any damage.

Treatment For Glaucoma

The goal is to lower the eye pressure and stop further harm to the optic nerve. Some of the treatments for glaucoma include:

Eye drops: These are used to lower eye pressure.
Laser Surgery: This can help open the drainage angle or make the drainage system work better.
Surgery: In some cases, surgery might be needed to create a new drainage path for the fluid.

Success Of Glaucoma Surgery

Glaucoma surgery can help lower eye pressure and stop more damage to the optic nerve. While the surgery can’t fix the damage that has already happened, it can prevent further vision loss. It’s important to keep seeing your eye doctor regularly to make sure the treatment is working.

Frequently Asked Questions

Is glaucoma surgery safe?

Glaucoma surgery can help lower eye pressure, but like any surgery, it has some risks. There may be problems like infection, bleeding, or changes in vision, but these are not so common.

Your doctor will talk to you and help you understand them. It’s important to follow your doctor’s advice before and after surgery to make sure everything goes well.

How often should I get my eyes checked?

It’s important to have regular eye exams if you are at risk for glaucoma or ocular hypertension. Your doctor will determine when to get checked based on age, family history, and health.

What happens if glaucoma is not treated?

If glaucoma is not treated, the pressure can hurt the optic nerve and lead to vision loss. That’s why early detection and treatment are important to protect your vision.

Can stress affect eye pressure?

Yes, stress can temporarily raise eye pressure. But it usually goes back to normal once the stress is reduced. Chronic stress may have other effects on health. So it’s always a good idea to manage stress and have regular check-ups to keep your eye pressure in check.

Key Takeaways

Taking care of your eyes is important to keep your vision healthy. Understanding the difference between ocular hypertension and glaucoma can help protect your eyes. If you have regular eye exams, follow your doctor’s advice and care for your health. This way, you can help keep your eyes and vision in great shape!

If you’re worried about ocular hypertension or glaucoma, we’re here in Melbourne. Early checks can help keep your eyes healthy.

Call Armadale Eye Clinic today at (03) 9070 5753 to make sure your vision stays strong and clear!

Note: Any surgical or invasive procedure carries risks. Before proceeding, you should seek a second opinion from an appropriately qualified health practitioner.

Sources:

Biggerstaff K S 2024. Primary Open-Angle Glaucoma (POAG). Medscape. Available at: https://emedicine.medscape.com/article/1206147-overview [Accessed November 13, 2024]

Boyd K 2024. What Is Ocular Hypertension? American Academy of Ophthalmology. Available at: https://www.aao.org/eye-health/diseases/what-is-ocular-hypertension [Accessed November 13, 2024]

Glaucoma Australia. Risk Factors for Glaucoma. Glaucoma Australia. Available at: https://glaucoma.org.au/what-is-glaucoma/risk-factors-for-glaucoma [Accessed November 13, 2024]

Healthdirect Australia 2022. Glaucoma. Healthdirect. Available at: https://www.healthdirect.gov.au/glaucoma [Accessed November 13, 2024]

Mayo Clinic Staff 2022. Glaucoma – Diagnosis and treatment. Mayo Clinic. Available at: https://www.mayoclinic.org/diseases-conditions/glaucoma/diagnosis-treatment/drc-20372846 [Accessed November 13, 2024]

NHS 2021. Glaucoma Treatment. NHS. Available at: https://www.nhs.uk/conditions/glaucoma/treatments/[Accessed November 13, 2024]

Is Glaucoma Hereditary? Understanding Genetic Risks And Management Strategies

October 28, 2024/0 Comments/in Armadale Eye Blogs /by Armadale Eye Clinic Team

Glaucoma is a serious ocular disease that can lead to vision loss if not managed adequately. As one of the fundamental causes of blindness worldwide, understanding glaucoma is essential for early detection and prevention, which begs the question, Is glaucoma hereditary?

This article delves into the hereditary aspects of glaucoma, various types of glaucoma, and modern management options, including topical eye drops, YAG laser iridotomy, SLT laser, and minimally invasive glaucoma surgery (MIGS).

By gaining a deeper understanding, you can take proactive steps towards safeguarding your eye health.

Understanding Glaucoma

Glaucoma is an eye disorder that destroys the optic nerve, oftentimes due to elevated intraocular pressure (IOP).

This pressure buildup can damage the delicate fibres of the optic nerve, leading to irreversible vision loss if left untackled.

But is glaucoma hereditary?

The answer is yes, in many cases. Family history plays a vital role in an individual’s risk of experiencing glaucoma.

Types Of Glaucoma

There are many types of glaucoma, each with its own unique characteristics.

Understanding these types can help in recognising the early signs and managing the condition effectively.

Primary Open-Angle Glaucoma

Primary open-angle glaucoma is a common form.

It develops slowly over time as the eye’s drainage system becomes less optimal, increasing eye pressure.

Angle-Closure Glaucoma

Also known as primary angle-closure glaucoma or closed-angle glaucoma, this type occurs when the iris restricts the drainage angle in the eye.

This can lead to acute attacks, characterised by sudden eye pain, headaches, and blurred vision.

Congenital Glaucoma

Primary congenital glaucoma is present at birth and is caused by an error in the development of the eye’s drainage system.

There’s a risk that this condition can be passed down, especially in cases of early-onset glaucoma.

Secondary Glaucoma

Secondary glaucoma happens as a result of another eye condition or injury.

Inflammatory eye diseases, eye injuries, or medical conditions such as diabetes and high blood pressure can increase the risk of developing glaucoma.

Is Glaucoma Hereditary? Glaucoma Risk Factors

When discussing whether glaucoma is hereditary, it’s important to recognise that genetic factors play a significant role.

Glaucoma hereditary patterns suggest that those with immediate family members who have glaucoma are at a greater risk of developing the condition.

Specific genes responsible for glaucoma have been identified, and these genetic mutations can increase a person’s risk of developing the disease.

A family history of glaucoma is considered one of the reasons someone may develop glaucoma, particularly in primary open-angle glaucoma and juvenile open-angle glaucoma.

Apart from genetics, other risk factors can increase your risk of experiencing open-angle glaucoma or developing angle-closure glaucoma.

These include age (older adults are at higher risk), ethnicity (people of African or Hispanic origin have a greater risk), and medical conditions like high blood pressure and diabetes.

Understanding these risk factors for glaucoma is crucial to fighting glaucoma and managing its progression.

Glaucoma Management Options

Managing glaucoma effectively involves early detection and a range of management options.

While glaucoma has no cure, various steps can help control intraocular pressure and reduce glaucoma risks.

Topical Eye Drops

Topical eye drops are oftentimes the first line of defence for managing glaucoma.

These eye drops work either by reducing the production of aqueous humour or increasing its drainage from the eye.

They lower eye pressure and help prevent further damage to the optic nerve.

Regular use of prescribed eye drops is essential to managing the condition properly.

YAG Laser Iridotomy

YAG laser iridotomy is a common procedure for managing angle-closure glaucoma.

It involves creating a small opening in the iris to improve the flow of aqueous humour and relieve pressure.

This procedure is particularly good at preventing acute attacks of angle-closure glaucoma.

Also, it is often recommended for those at higher risk of developing this condition.

SLT Laser (Selective Laser Trabeculoplasty)

Selective laser trabeculoplasty (SLT) is another effective management for open-angle glaucoma.

SLT laser targets the eye’s drainage system, enhancing the outflow of fluid and reducing intraocular pressure.

It is a non-invasive procedure that can be repeated if necessary and is a popular choice for those who may not respond well to topical eye drops.

MIGS (Minimally Invasive Glaucoma Surgery)

Minimally Invasive Glaucoma Surgery (MIGS) offers a less invasive option for managing glaucoma, particularly when combined with cataract surgery.

Two popular MIGS devices are the iStent and Hydrus.

These tiny devices are implanted into the eye’s drainage system, helping to improve fluid outflow and lower eye pressure.

MIGS procedures may be recommended for patients with mild-to-moderate glaucoma who are undergoing cataract surgery.

Frequently Asked Questions

Is glaucoma always hereditary?

No, while hereditary glaucoma is common, not everyone with glaucoma has a family history of the condition.

Other factors, like age, ethnicity, and certain medical conditions, also play a role in developing glaucoma.

Can glaucoma be cured?

You cannot treat glaucoma, but it can be managed with early detection and proper measures.

The goal is to mitigate further damage to the optic nerve and sustain vision.

How often should I get my eyes checked if glaucoma runs in my family?

If you have a family history of glaucoma, your skilled eye doctor should recommend a comprehensive eye exam.

Early detection is necessary when it comes to slowing down vision loss.

Are there lifestyle changes that may help prevent glaucoma?

Maintaining a good lifestyle, which includes regular exercise, a balanced diet, and addressing medical issues such as high blood pressure, may help lower your chance of developing glaucoma.

Regular eye examinations may also be necessary for early detection.

What are the early glaucoma symptoms?

In many cases, glaucoma develops without noticeable symptoms.

However, some early signs include loss of peripheral vision, pain, headaches, and halos around lights.

Regular eye exams are key to detecting these early signs.

Wrapping Up: The Importance Of Early Detection And Management

Finding the answer to the common question, “Is glaucoma hereditary?” is essential for those with a family history of the condition.

While genetics play a significant role, other elements such as age, ethnicity, and medical conditions also contribute to the risk of developing glaucoma.

Early detection and proper management, including topical eye drops, YAG laser iridotomy, SLT laser, and MIGS, are crucial in preventing vision loss.

By staying aware and proactive, you can protect your eyes’ health and reduce the risk of glaucoma.

Contact Armadale Eye Clinic in Melbourne at (03) 9070 5753 to take the first step towards safeguarding your sight.

Our experienced team of eye specialists is here to provide personalised care and the current management options to help you maintain healthy eyes for life.

Note: Any surgical or invasive procedure carries risks. Before proceeding, you should seek a second opinion from an appropriately qualified health practitioner.

Sources:

Biggerstaff, Kristin S. “Primary Open-Angle Glaucoma (POAG).” Medscape, 9 Jan. 2024, emedicine.medscape.com/article/1206147-overview. Accessed 9 Aug. 2024.

Heslep, Grant, MD. “Family History, Ethnicity Give Insights Into Glaucoma.” Mayo Clinic Health System, 24 Jan. 2024, www.mayoclinichealthsystem.org/hometown-health/speaking-of-health/family-history-ethnicity-and-glaucoma. Accessed 9 Aug. 2024.

Pharm, Ratan-NM. “Types of Glaucoma.” News-Medical, 3 Feb. 2019, www.news-medical.net/health/Types-of Glaucoma.aspx. Accessed 9 Aug. 2024.

National Glaucoma Research. “Glaucoma: Facts and Figures.” BrightFocus Foundation, 14 July 2021, www.brightfocus.org/glaucoma/article/glaucoma-facts-figures. Accessed 9 Aug. 2024.

“Risk Factors for Glaucoma.” Glaucoma Australia, glaucoma.org.au/what-is-glaucoma/risk-factors-for-glaucoma. Accessed 9 Aug. 2024.

Winderl, Amy Marturana. “A Guide to Glaucoma Surgery.” Health, 25 Nov. 2023, www.health.com/condition/glaucoma/glaucoma-surgery. Accessed 9 Aug. 2024.

Your Simplified Guide To The Types Of Glaucoma, Its Signs, Causes, And Management Methods

September 5, 2024/0 Comments/in Retinal Surgery /by Armadale Eye Clinic Team

Glaucoma is a group of eye conditions that can result in vision loss and blindness by damaging the optic nerve, which connects the eye to the brain. This damage often results from abnormally high pressure in the eye. Understanding the various types of glaucoma, recognising the signs, identifying causes, and knowing how to manage this condition are crucial for maintaining healthy vision.

What Is Glaucoma?

Glaucoma refers to a group of severe eye diseases that damage the optic nerve, a critical part of your vision pathway. The damage is oftentimes caused by increased pressure in the eye, known as intraocular pressure (IOP). However, glaucoma can occur even when IOP is within normal ranges. If left unmanaged, glaucoma can lead to irreversible vision loss and blindness.

Types Of Glaucoma

There are many types of glaucoma, each with distinct characteristics and implications for eye health. Understanding these differences is essential for early detection and effective management.

Primary Open-Angle Glaucoma: Primary open-angle glaucoma is a prevalent type of glaucoma. It occurs when the drainage angle created by the cornea and iris stays open, but the trabecular meshwork is partially obstructed. This causes a gradual increase in eye pressure, leading to optic nerve damage.
Angle-Closure Glaucoma: Angle-closure glaucoma (also called closed- or narrow-angle glaucoma) occurs when the drainage angle created by the cornea and iris closes or is obstructed. This can occur suddenly (acute angle-closure glaucoma) or gradually (chronic angle-closure glaucoma). It is a medical emergency and necessitates immediate attention.
Normal-Tension Glaucoma: Also known as normotension or low-tension glaucoma, normal-tension glaucoma occurs when optic nerve damage happens despite normal eye pressure. The exact reason is unknown, but it is believed that a susceptible optic nerve or reduced blood flow to the optic nerve might have a role.
Neovascular Glaucoma: Neovascular glaucoma develops when new, abnormal blood vessels grow on the eye’s iris and obstruct its drainage angle. This is often associated with other conditions, like diabetes.

Signs You Have Glaucoma

Recognising the signs of glaucoma early is paramount to preventing significant vision loss. Since glaucoma often progresses silently, awareness of its symptoms is crucial for timely intervention and effective management. Here are some common signs to watch for:

Gradual Peripheral Vision Loss

In the early stages, primary open-angle glaucoma often presents with a gradual loss of peripheral vision, also known as “tunnel vision.” This incremental narrowing of the visual field can go unnoticed for years, as the central vision remains unaffected until later stages. Routine eye exams are essential for detecting these early changes before significant damage has occurred. Individuals may initially experience difficulty navigating crowded areas or frequently bump into objects on the side.

Severe Eye Pain

Severe eye pain may be a tell-tale sign of acute angle-closure glaucoma, a condition that develops suddenly and constitutes a medical emergency. Other alarming symptoms, such as nausea, vomiting, and blurred vision, often accompany this intense pain. Acute angle-closure glaucoma occurs when the eye’s drainage angle becomes entirely blocked, causing a rapid increase in intraocular pressure. Immediate management is paramount to control the possibility of permanent vision loss.

Blurred Vision

Blurred vision or seeing halos around lights can indicate increased intraocular pressure, a hallmark of glaucoma. These visual disturbances result from the optic nerve’s stress and damage, leading to a gradual decline in the quality of vision. Patients might notice difficulty focusing on objects, increased glare, and halos around lights, especially in low-light conditions. These symptoms warrant a comprehensive eye examination to rule out glaucoma and other ocular conditions.

Severe Headaches

Frequent and severe headaches, particularly when accompanied by eye pain, can be a sign of angle-closure glaucoma. The headaches are often intense and may be mistaken for migraines or other types of headache disorders. The pain usually originates around the eye and can extend to the forehead and temple area. Given the serious nature of angle-closure glaucoma, an eye care professional should promptly evaluate any recurrent headaches with associated eye symptoms.

Eye Redness

Redness in the eye, especially when paired with pain and blurred vision, can indicate acute angle-closure glaucoma or other serious eye conditions. This redness results from increased pressure and inflammation within the eye, leading to congested blood vessels. Patients may also experience a gritty sensation in the eyes and increased tearing. Persistent eye redness requires immediate medical attention to determine the underlying cause and initiate an appropriate course of action.

Nausea And Vomiting

Nausea and vomiting, when occurring alongside severe eye pain and blurred vision, can signal an acute angle-closure glaucoma attack. These systemic symptoms are caused by the sudden spike in intraocular pressure, which affects the body’s overall physiological response. The presence of these symptoms signifies a severe form of glaucoma that needs urgent medical intervention to lessen optic nerve damage and irreversible vision loss.

Tunnel Vision

Advanced glaucoma can cause tunnel vision, in which only the central vision remains intact and peripheral vision is lost. This symptom is typically associated with long-standing, untackled glaucoma and signifies significant optic nerve damage. Patients with tunnel vision may find it challenging to perform daily mundane tasks such as driving, reading, and recognising faces. This condition greatly reduces the quality of life and underscores the importance of early detection and continuous monitoring of glaucoma.

Visual Disturbances

Other visual disturbances, such as flickering or shadowy images, light sensitivity, and frequent changes in prescription glasses, can also be early indicators of glaucoma. These signs are often subtle and may be attributed to normal ageing or other benign conditions, but they should not be overlooked.

Increased Intraocular Pressure

While not a symptom the patient feels, increased intraocular pressure can be detected during routine eye examinations. Regular monitoring of eye pressure is crucial for individuals at risk of glaucoma or those with a family history of the condition. Elevated eye pressure, even without other symptoms, necessitates further evaluation and possible intervention to control optic nerve damage.

Blind Spots

The presence of blind spots, known as scotomas, in the visual field can also be a sign of glaucoma. These blind spots occur due to localised damage to the optic nerve fibres and can be detected through visual field testing. Early identification and management of scotomas are essential to preserving the remaining vision.

Chronic Eye Fatigue

Persistent eye fatigue or strain, particularly when it does not resolve with rest, can indicate underlying eye pressure issues. Patients may experience a constant feeling of tired eyes, difficulty focusing, and general discomfort, which can be signs of developing glaucoma.

Reasons You Have Glaucoma

Several factors may increase the risk of developing glaucoma. Understanding these reasons is crucial for early detection and effective management of symptoms. Here, we delve into the key elements contributing to the onset of this complex eye condition:

Elevated Eye Pressure

Increased intraocular pressure (IOP) is the most significant risk factor for glaucoma, particularly for primary open-angle glaucoma. Elevated eye pressure results from the imbalance between the production and drainage of aqueous humour, the fluid within the eye. When this fluid fails to drain properly through the trabecular meshwork, it leads to pressure buildup. Prolonged elevated IOP exerts stress on the optic nerve, causing damage and subsequent vision loss. Regular eye exams are crucial for tracking eye pressure and detecting early signs of glaucoma.

Family History

A family history of glaucoma significantly increases the risk of developing the condition. Genetics play a crucial role in glaucoma, with specific genes linked to the disease. If you have close relatives, such as parents or siblings, diagnosed with glaucoma, your likelihood of developing the condition increases. Genetic predisposition underscores the importance of regular screenings for individuals with a family history of glaucoma, enabling early detection and intervention.

Age

The likelihood of glaucoma increases with age, especially for those over 60. As we age, the structures within the eye, including the drainage angle and optic nerve, undergo changes that may predispose individuals to higher intraocular pressure and optic nerve vulnerability. Age-related changes in the eye’s anatomy and physiological functions contribute to the higher prevalence of glaucoma among older adults. Regular eye examinations become increasingly vital as one ages to detect glaucoma in its early stages and slow down vision loss.

Medical Conditions

Certain medical conditions are thought to be associated with an increased likelihood of glaucoma. Diabetes, for instance, can cause diabetic retinopathy, leading to changes in blood vessels and increased eye pressure. High blood pressure and heart disease can also impact blood flow to the optic nerve, increasing the chances of developing glaucoma. Conditions like migraine and myopia (nearsightedness) are linked to higher susceptibility. Managing these underlying conditions through appropriate medical care can help mitigate the risk of glaucoma.

Eye Injuries

Previous eye injuries can lead to secondary glaucoma, a form of glaucoma resulting from damage to the eye. Traumatic events, such as blunt force injuries, penetrating eye injuries, or chemical burns, can disrupt the eye’s drainage system, resulting in increased intraocular pressure. Additionally, eye surgeries and inflammatory conditions like uveitis can cause secondary glaucoma. Individuals with a history of eye injuries should have regular check-ups to monitor for potential glaucoma development.

Prolonged Use Of Steroids

Long-term use of steroid medications, including eye drops, oral steroids, and inhalers, can increase the risk of developing steroid-induced glaucoma. Steroids can elevate intraocular pressure by affecting the eye’s drainage system. Patients on prolonged steroid therapy should have their eye pressure monitored regularly to detect any changes and adjust their management plan accordingly. Reducing or modifying steroid use under medical supervision can help manage this risk.

Ethnic Background

Certain ethnic backgrounds have a higher likelihood of developing specific types of glaucoma. For instance, African populations are more prone to primary open-angle glaucoma, which tends to develop at an earlier age and progress more rapidly and even angle-closure glaucoma. Understanding these ethnic predispositions highlights the need for targeted screening and awareness campaigns in high-risk communities.

High Myopia (Nearsightedness)

High myopia is associated with an increased risk of developing glaucoma. The elongated shape of a highly myopic eye can affect the drainage of aqueous humour, leading to elevated intraocular pressure. Patients with high myopia should have regular eye exams to monitor for signs of glaucoma and take necessary measures.

Thin Corneas

Individuals with thinner central corneal thickness are at a higher risk of glaucoma. Thin corneas can lead to an underestimation of intraocular pressure readings, potentially delaying the diagnosis of glaucoma. Corneal thickness measurement is an important part of glaucoma risk assessment.

Can Glaucoma Be Cured? Understanding The Chronic Nature Of Glaucoma

The term “cure” implies the complete eradication of a disease, but unfortunately, there is no glaucoma treatment in the traditional sense. The damage caused by any type of glaucoma to the optic nerve and the resultant vision loss are permanent. However, with early detection and proper management methods, the progression of the disease may be slowed or halted, preserving the remaining vision.

Strategies For Managing Glaucoma

Managing glaucoma effectively involves regular monitoring and treatment of symptoms to reduce IOP and optic nerve damage. While there are studies going on to see if precision medicine can be used to reduce instances of blindness, these are the current common strategies:

Licenced Eye Drops: Eye drops are often the first line of management option for glaucoma. They work by lessening the production of aqueous fluid or increasing its outflow from the eye.
Medication: Oral medications may be prescribed to reduce intraocular pressure.
Laser Treatment: Laser treatments, such as Selective Laser Trabeculoplasty (SLT), can help improve the drainage of aqueous fluid and reduce eye pressure.
Glaucoma Surgery: When medications and laser treatments are insufficient to control intraocular pressure, surgery may be recommended to manage glaucoma effectively. There are several surgical options available, including:
- Filtering/Trabeculectomy: Filtering or trabeculectomy surgery involves creating a new drainage channel to allow the aqueous fluid to drain out of the eye, thereby reducing intraocular pressure.
- Minimally Invasive Glaucoma Surgery (MIGS): MIGS offers less-invasive alternatives to traditional surgeries. These procedures aim to enhance the eye’s natural drainage system. Examples include iStent and Hydrus Microstent, small devices implanted to improve fluid outflow. For certain cases, MIGS procedures, including iStent and Hydrus, can be combined with cataract surgery. This combined approach addresses both conditions simultaneously, offering patients potential benefits regarding convenience and outcomes. Each surgical option is tailored to the individual patient’s needs and the specific characteristics of their glaucoma. Your eye care specialist will discuss these options and recommend the most suitable management plan based on your condition and overall eye health.
Regular Eye Examinations: Regular eye tests are crucial for detecting glaucoma early and monitoring its progression.
Healthy Lifestyle: keeping a healthy lifestyle, such as eating a balanced diet and doing regular workouts, can help manage overall health and reduce glaucoma risk factors.

Frequently Asked Questions

What are the early signs of glaucoma?

Early signs of glaucoma include accumulative loss of peripheral vision, blurry vision, and seeing halos around lights. Eye examinations are crucial for early detection.

How is glaucoma diagnosed?

Diagnosing glaucoma entails a comprehensive eye exam, including measuring eye pressure, inspecting the drainage angle, and assessing optic nerve health.

What should I do if I have symptoms of acute angle-closure glaucoma?

If you experience symptoms that can be similar to those of glaucoma, like severe eye pain, headache, nausea, vomiting, and blurred vision, seek prompt medical attention as it is a medical emergency.

What is the prognosis for individuals with glaucoma?

The prognosis for individuals with glaucoma varies depending on the type and severity of the disease and how early it is diagnosed and addressed. With early detection and proper management, many people with glaucoma can maintain good vision and control significant vision loss. Regular follow-up sessions with an eye care professional are essential for tracking the condition and adjusting the plan as needed.

Closing Remarks: Sustaining Vision Through Glaucoma Management

Understanding the types of glaucoma, recognising the signs, identifying the reasons, and knowing how to manage this condition can help preserve vision and slow down, if not prevent, significant vision loss. Comprehensive eye exams, early detection, and appropriate management plans are key to managing glaucoma effectively.

If you suspect you have glaucoma or are at higher risk, take proactive steps to help maintain your eye health and vision. By staying informed and vigilant, you can manage glaucoma and enjoy a high quality of life.

Take the first step towards preserving your vision. Call Armadale Eye Clinic in Armadale at (03) 9070 5753 to learn more about how we can help you manage glaucoma.

Note: Any surgical or invasive procedure carries risks. Before proceeding, you should seek a second opinion from an appropriately qualified health practitioner.

Sources:

Bsn, Heather Smith Rn. “What to Know About Early Signs of Glaucoma.” Medical News Today, 17 Apr. 2024, www.medicalnewstoday.com/articles/early-signs-of-glaucoma. Accessed 18 July 2024.

Glaucoma UK. “MIGS | Minimally Invasive Surgery.” Glaucoma UK, glaucoma.uk/about-glaucoma/treatments-surgery/migs. Accessed 18 July 2024.

Healthdirect Australia. “Glaucoma.” Healthdirect, www.healthdirect.gov.au/glaucoma. Accessed 18 July 2024.

Iftikhar, Noreen, MD. “Glaucoma Surgery: Types, Complications, and Recovery.” Healthline, 2 Sept. 2022, www.healthline.com/health/eye-health/what-types-of-glaucoma-surgery-are-there. Accessed 18 July 2024.

Jackson, Andrew. “African Descent and Glaucoma: Unraveling the Genetics Putting a Community at Higher Risk – Glaucoma Research.” Glaucoma Research Foundation, 6 Feb. 2023, glaucoma.org/articles/african-descent-and-glaucoma-unraveling-the-genetics-putting-a-community-at-higher-risk. Accessed 18 July 2024.

Mayo Clinic Staff. “Glaucoma – Symptoms and Causes.” Mayo Clinic, 30 Sept. 2022, www.mayoclinic.org/diseases-conditions/glaucoma/symptoms-causes/syc-20372839. Accessed 18 July 2024.

Moroi, Sayoko E., et al. “Precision Medicine to Prevent Glaucoma-related Blindness.” Current Opinion in Ophthalmology, With Evaluated MEDLINE/Current Opinion in Ophthalmology, vol. 30, no. 3, May 2019, pp. 187–98. https://doi.org/10.1097/icu.0000000000000564.

Posts

Understanding Glaucoma

Types of Glaucoma

Primary Open-Angle Glaucoma

Angle-Closure Glaucoma

Congenital Glaucoma

Normal-Tension Glaucoma

Risk Factors That Influence Diagnosis

The Role of a Comprehensive Eye Exam

Measuring Eye Pressure

Examining the Optic Nerve

Assessing Peripheral Vision

Considering the Eye’s Drainage System

Additional Considerations

Managing Glaucoma

Prescription Eye Drops

Laser Treatment

Minimally Invasive Glaucoma Surgery (MIGS)

Frequently Asked Questions

How often should glaucoma be monitored once diagnosed?

Can glaucoma be prevented?

How does a thin cornea affect glaucoma risk?

Can low or high blood pressure affect glaucoma?

Can cataract surgery affect glaucoma?

Conclusion

Overview of Glaucoma

How Blood Pressure Affects Eye Pressure

The Role of the Optic Nerve in Eyesight

How Pressure Changes Can Lead to Optic Nerve Damage

Intraocular Pressure and Its Importance

What Happens When Eye Pressure Rises

Types of Glaucoma and Their Relationship With Blood Pressure

Primary Open Angle Glaucoma

Normal Tension Glaucoma

Angle-Closure Glaucoma

The Role of Ocular Perfusion Pressure

Low Ocular Perfusion Pressure and Vision Health

Understanding Perfusion Pressure in Glaucoma Patients

Maintaining Balanced Blood Pressure Control

Risk Factors for Glaucoma

Family History of Glaucoma

Extreme Short-Sightedness

Age and Other Medical Conditions

Heart Disease and Blood Vessel Health

Recognising the Signs of Glaucoma

Early Changes in Side Vision

Subtle Symptoms That May Be Overlooked

Importance of Regular Eye Exams

Managing Glaucoma and High Blood Pressure

Blood Pressure Control Strategies

Glaucoma Treatment Options

Frequently Asked Questions

What is ocular perfusion pressure?

How often should I have an eye exam if I have high BP?

Conclusion

What Is Glaucoma?

Types Of Glaucoma

Is There A Difference Before And After Glaucoma Surgery?

Types Of Glaucoma Surgery

What Happens Before Glaucoma Surgery?

The Day Of Surgery

Recovery Process

Combining Cataract Surgery And Glaucoma Surgery

Before And After Changes

Daily Life Changes

Vision Differences

Emotional And Lifestyle Benefits

Risks And Considerations

Frequently Asked Questions

How will I know if the surgery was successful?

Can I wear makeup after surgery?

Can I drive after glaucoma surgery?

Conclusion

Sources

Does Glaucoma Cause Blindness?

Types Of Glaucoma And Their Impact On Vision

Primary Open-Angle Glaucoma (POAG)

Angle-Closure Glaucoma (ACG)

Normal-Tension Glaucoma (NTG)

Congenital Glaucoma