Glaucoma in Oshawa, ON

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Routine Eye Care Can Preserve Your Sight

Glaucoma is a progressive eye disease that causes damage to the optic nerve. Although it’s usually associated with high intraocular pressure (IOP), there is a form of glaucoma that results even when IOP is within the normal range (normal-tension glaucoma).

Although those over 60 are at higher risk of developing glaucoma, it can occur at any age. Because many forms of glaucoma progress with no early symptoms, early detection is crucial for protecting your ocular health and vision. In many cases, if glaucoma is caught and managed early enough, vision loss can be entirely prevented.

Comprehensive eye exams are the only way to diagnose glaucoma before it causes irreversible damage.

Types of Glaucoma

There are several types of glaucoma, but the 2 main types are open-angle and angle-closure. However, normal-tension glaucoma occurs even when intraocular pressure is within the normal range. Ocular nerve damage still happens, and medical professionals think it could be related to sensitive optic nerves or high blood pressure.

Open-angle glaucoma (also known as primary or chronic) is the most common form of glaucoma. It occurs when the fluid in your eyes (the aqueous humour) can’t drain properly, causing your eye’s internal pressure to slowly rise. This form of glaucoma progresses gradually and will require life-long management.

This condition rarely exhibits symptoms in its early stages, so many patients don’t realize something is wrong until they have already experienced vision loss or even blindness.

Angle-closure glaucoma (also known as acute or narrow-angle) is a rare form of glaucoma that develops suddenly and painfully. It occurs when the iris expands outwards and blocks the drainage canals (the angle between the cornea and the iris), resulting in a sudden increase in IOP.

Symptoms of angle-closure glaucoma are very noticeable and damage occurs quickly. Symptoms include:

  • Blurred or hazy vision
  • Rainbow halos around bright lights
  • Severe eye and headache
  • Nausea or vomiting
  • Sudden loss of sight

Angle-closure glaucoma is an eye emergency, so if you are experiencing any of the above symptoms, call us immediately.

How is Glaucoma Diagnosed

Every comprehensive eye exam includes testing for glaucoma. We use both non-contact tonometry and Perkins Tonometry to test for glaucoma.

NCT, or the “air puff test,” uses a puff of air to measure your eye’s internal pressure. NCT is an easy test to screen for glaucoma as there is no contact made. However, it’s not as accurate as other forms of tonometry.

Perkins Tonometry is just as accurate at Goldmann Applanation Tonometry (the “gold standard” for glaucoma testing) but is handheld. This is ideal for children and those with physical limitations.

Perkins ultimately works the same as GAT. It uses a tonometer to slightly flatten the surface of the cornea to measure IOP.

Glaucoma is a serious and dangerous eye disease that requires quick action and prompt management. Regular eye exams are essential to early detection, so please book an appointment today.

Optometrists use visual field testing to diagnose, assess, and monitor the progression of glaucoma. The test pulses light around different areas of your peripheral vision. At the same time, your optometrist monitors this test to look for signs of blind spots in your vision, which could be indicative of vision damage caused by glaucoma.

Optical coherence tomography (OCT) scans help your optometrist take a look at your retina’s health. Glaucoma can damage your retina, particularly your optic disc, and an OCT detects this by creating cross-sectional photographs of your retina. OCTs operate similarly to an ultrasound, but instead of using sound to generate images, it uses light directed into your eye.

Our Eye Care Services

Where to Find Us

You can find us on the corner of Colborne Street and Kaiser Crescent.

Our Address

109 Colborne St W
Oshawa, ON L1G 1L8

Contact Information

Phone: 905-723-2721
[email protected]

Our Hours

Monday
8:30 AM5 PM
Tuesday
8:30 AM5 PM
Wednesday
8:30 AM5 PM
Thursday
8:30 AM5 PM
Friday
8:30 AM4 PM
Saturday
Closed
Sunday
Closed

Please note: The office will be closed December 24th-January 3rd.

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