Did you know that glaucoma is one of the leading causes of irreversible blindness worldwide? Often dubbed the “silent thief of sight”, it can gradually damage your vision without any noticeable symptoms—until it’s too late. What makes this condition particularly concerning is that by the time glaucoma symptoms appear, permanent optic nerve damage may have already occurred.
The good news? Early detection through a routine eye exam for glaucoma can be life-changing. At Northbridge Optical, we believe that raising glaucoma awareness and making regular check-ups a priority can help preserve sight for thousands of Australians. In this guide, we’ll walk you through what glaucoma is, who’s at risk, the importance of early detection, and the latest glaucoma treatment options—all tailored with Northbridge Optical’s caring, personalised approach.
What Is Glaucoma?
Glaucoma refers to a group of eye diseases that progressively damage the optic nerve, a vital structure that sends visual information from the eye to the brain. This damage is often—but not always—caused by a build-up of pressure inside the eye, known as intraocular pressure. Without treatment, glaucoma can lead to permanent vision loss. The condition is notorious for being silent in its early stages, which is why it’s often referred to as the “silent thief of sight”.
There are several types of glaucoma, each with its own characteristics:
Primary open-angle glaucoma
This is the most common type, especially in people over 40. It occurs when the eye’s drainage canals become less efficient over time, causing a gradual increase in eye pressure. The progression is so slow that patients usually notice no symptoms until substantial peripheral vision has been lost. Because of its subtle onset, eye pressure testing and optic nerve scans during regular exams are the only way to detect it early.
Angle-closure glaucoma
This less common form is far more acute and urgent. It happens when the drainage angle in the eye suddenly becomes blocked, causing a rapid rise in intraocular pressure. Symptoms are often severe and include intense eye pain, headache, nausea, vomiting, blurred vision, and halos around lights. This is a true medical emergency requiring immediate treatment to prevent permanent vision loss.
Normal-tension glaucoma
In this type, damage to the optic nerve occurs even though eye pressure remains within normal ranges. It’s thought to be related to poor blood flow to the optic nerve or increased sensitivity of the nerve fibres. This form is more common in individuals with a family history of glaucoma or those of Asian descent. Because pressure readings are normal, diagnosis relies heavily on detailed optic nerve imaging and visual field testing.
Despite their differences, all forms of glaucoma can lead to irreversible vision loss if not detected early. That’s why regular eye exams for glaucoma—which check more than just your vision—are so important.
Who Is at Risk?
Anyone can develop glaucoma, but certain factors significantly increase your chances. If you fall into any of these categories, you should be especially proactive with your eye health:
- Age 40 and above: The risk increases steadily with age and becomes more pronounced after 60. Regular eye exams are essential as part of age-related preventative care.
- Family history: If a close relative—especially a parent or sibling—has glaucoma, your risk can be up to nine times higher, making family medical history a key part of your risk profile.
- Elevated eye pressure (intraocular pressure): High pressure inside the eye is a strong warning sign, often picked up early through tonometry during a routine exam.
- Medical conditions: Chronic illnesses like diabetes, high blood pressure, and heart disease can contribute to poor blood flow to the optic nerve, increasing the risk of damage.
- Previous eye injuries or surgeries: Trauma to the eye can interfere with its ability to properly drain fluid, leading to higher intraocular pressure and eventual optic nerve damage.
Additional risk factors include prolonged use of corticosteroid medications, extreme nearsightedness or farsightedness, and being of African, Asian, or Hispanic descent—all of which have been linked to higher glaucoma prevalence.
Knowing your risk factors is the first step toward proactive eye care. If any of these sound familiar, it’s time to prioritise a glaucoma screening.
Importance of Early Detection
Because glaucoma typically presents no early symptoms, many people are unaware they have it until permanent vision loss has already occurred. That’s what makes early detection absolutely vital.
At Northbridge Optical, our comprehensive eye exams are designed to catch the early signs of glaucoma well before symptoms appear. Here’s how we do it:
Eye Pressure Testing (Tonometry)
This simple, quick test measures your intraocular pressure. If your eye pressure is elevated, it may be an early indicator of glaucoma. Our high-tech, non-invasive tonometry tools ensure accurate readings with maximum comfort.
Optic Nerve Imaging
Advanced imaging allows us to view the optic nerve in detail. By comparing images over time, we can track any changes that might suggest the onset of glaucoma, even if your eye pressure is normal.
Visual Field Testing
Also known as a visual field test, this checks for blind spots and peripheral vision loss—common indicators of optic nerve damage. It’s essential for diagnosing and monitoring glaucoma progression.
These tools work together to give us a full picture of your eye health. By scheduling an eye exam for glaucoma every 1–2 years—especially if you’re over 40—you can dramatically reduce your risk of vision loss.
Glaucoma Treatment Options
While glaucoma treatment options cannot reverse existing damage, they are incredibly effective at slowing or stopping further vision loss. The goal is to lower intraocular pressure and preserve the remaining vision. Treatment plans are tailored to each patient’s needs and may include:
Prescription Eye Drops
These are usually the first line of treatment. Eye drops help decrease eye pressure by reducing fluid production or improving drainage. They’re often used long-term and require consistent use to be effective.
Laser Therapy
For some types of glaucoma, laser procedures can improve fluid outflow, reducing pressure in the eye. Treatments like laser trabeculoplasty are typically quick, outpatient procedures with minimal recovery time.
Surgery
In more advanced cases or when other treatments aren’t effective, surgical options may be considered. Procedures like trabeculectomy or glaucoma drainage implants create new pathways for fluid drainage, helping to maintain safe pressure levels.
Whatever the method, early intervention is key. With the right treatment, many people with glaucoma can maintain their vision and quality of life.
Northbridge Optical’s Personalised Eye Health Approach
At Northbridge Optical, we’re more than just an optometry clinic—we’re part of your community. As a proudly local and independent practice, we are deeply committed to personalised care and long-term eye health.
Our friendly team takes the time to get to know each patient, ensuring that every comprehensive exam includes detailed screening for conditions like glaucoma. Using state-of-the-art diagnostic tools, including eye pressure testing, optic nerve imaging, and visual field tests, we leave no stone unturned in protecting your sight.
We believe that glaucoma awareness starts with education and ongoing monitoring. That’s why we offer tailored advice, easy-to-understand results, and follow-up care to help manage your vision over time. Your eye health is our top priority—and early detection is at the heart of everything we do.
Stay One Step Ahead with a Simple Eye Exam
Glaucoma doesn’t have to mean a loss of vision—not if it’s caught early. Regular eye exams, particularly for those over 40 or with known risk factors, are your best defence against this silent condition. By staying informed and vigilant, you can protect your vision and enjoy life with clarity.
Book your glaucoma screening with Northbridge Optical today and protect your vision for the future.
Dr Sophie Dao is the co-owner and principal optometrist at Northbridge Optical, bringing more than 15 years of experience in boutique private practice. A UNSW graduate with Honours and full therapeutic endorsement, she is passionate about providing personalised, high-quality eye care for patients of all ages.
With a special interest in myopia management, Sophie has helped hundreds of children slow the progression of short-sightedness through treatments such as orthokeratology, atropine therapy and advanced myopia-control lenses. As someone who is short-sighted herself and a parent of young children, she understands firsthand the importance of early intervention and long-term vision health.
Sophie believes in creating a welcoming, community-focused experience where every patient feels understood and cared for. When she’s not in the practice, she enjoys spending time with her family and keeping up with the latest research in clinical optometry.
