Glaucoma, macular degeneration, cataracts, and diabetic retinopathy often develop with no early warning signs. At Dr. J.C. Mungar Optometry, we use OCT scanning and digital retinal imaging to detect and monitor eye disease in Oakville patients long before it threatens their vision.
Most serious eye diseases are symptom-free in their early stages. Patients with glaucoma rarely feel elevated intraocular pressure. Macular degeneration can silently steal central vision before a patient notices anything is wrong. Diabetic retinopathy progresses for years without blurring a patient’s sight. By the time symptoms become obvious, significant and permanent damage may already have occurred.
That is why comprehensive eye exams at regular intervals are not just about glasses prescriptions. They are your primary defence against conditions that, if detected early, can be monitored, slowed, and in many cases managed effectively to protect your vision for life.
Glaucoma is a group of conditions that damage the optic nerve, usually as a result of elevated intraocular pressure. It causes peripheral vision loss first, typically going unnoticed until the disease is well advanced. Risk factors include elevated eye pressure, family history, age over 60, and diabetes. Dr. Mungar screens for glaucoma at every comprehensive exam using tonometry and optic nerve assessment, with OCT imaging used to detect structural nerve damage before any visual field loss occurs.
AMD affects the macula, the central region of the retina responsible for detailed vision used in reading, driving, and recognizing faces. It is the leading cause of vision loss in Canadians over 50. Dry AMD progresses slowly through drusen accumulation; wet AMD involves abnormal blood vessel growth and can cause rapid, severe central vision loss. Early detection through OCT allows for lifestyle counselling, AREDS supplementation, and prompt referral for anti-VEGF injections in wet AMD cases.
Diabetes damages the blood vessels of the retina, and diabetic retinopathy is the leading cause of blindness in working-age Canadians. Annual dilated eye exams are essential for all diabetic patients. Dr. Mungar uses OCT and digital retinal imaging to detect retinopathy at its earliest stages, and co-manages with ophthalmology for patients requiring laser therapy or injections.
Cataracts occur when the natural lens of the eye clouds over, causing gradual blurring, glare sensitivity, and faded colours. They are the most common cause of reversible vision loss worldwide. Dr. Mungar monitors cataract progression, adjusts glasses prescriptions to optimise vision in earlier stages, and co-manages with cataract surgeons when surgery is indicated.
Uncontrolled high blood pressure damages the blood vessels of the retina. Dr. Mungar can detect the early signs of hypertensive retinopathy during a dilated exam, which is sometimes the first indication that a patient’s blood pressure is poorly controlled. We communicate findings with your family physician where appropriate.
Including retinal tears, holes, and detachment (urgent emergencies requiring immediate referral), epiretinal membrane, macular holes, and central serous retinopathy. Sudden onset of floaters, flashes, or a curtain across your vision requires same-day assessment.
Early detection of disease progression depends on comparison with baseline. Seeing Dr. Mungar year over year means subtle changes are noticed and acted upon promptly.
Many primary eye care offices refer for OCT imaging. At our Oakville clinic, OCT is available in-office, meaning you get definitive diagnostic imaging without additional appointments or wait times.
When disease requires specialist intervention, Dr. Mungar co-manages with a trusted network of ophthalmologists in the Oakville and Halton Region area, ensuring coordinated care from detection through treatment.
Adults aged 20 to 64 without risk factors: every 1 to 2 years. Adults 65 and older: annually (covered by OHIP). Patients with diabetes, a family history of glaucoma or AMD, or other risk factors: annually or as directed by Dr. Mungar. Children: annually through school years, as undetected vision problems affect learning.
In most cases, no. Glaucoma damages peripheral vision gradually, and the brain compensates so well that most patients notice nothing until 40% or more of peripheral vision is lost. Dry AMD progresses very slowly; patients often assume their central vision blurring is simply normal aging. Only an eye exam with the appropriate diagnostic tools can detect these conditions early.
Depending on the condition and stage, Dr. Mungar will explain your diagnosis clearly, recommend monitoring intervals, discuss lifestyle modifications and supplementation where relevant, and co-manage or refer to an ophthalmology specialist where treatment beyond optometric scope is required. You will never be left without a clear plan.
Yes. First-degree relatives of glaucoma patients have a 4 to 10 times higher risk of developing the condition. AMD has a strong genetic component, as does diabetic retinopathy when combined with a family history of type 2 diabetes. Always share your family eye history with Dr. Mungar.
Early detection changes outcomes. Call our Oakville clinic at (905) 842-3411 to book your comprehensive eye health assessment with Dr. J.C. Mungar, or schedule online.
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Monday August 3 through Friday August 7
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