Advanced imaging technology like optical coherence tomography (OCT) and digital retinal imaging has transformed how eye care professionals assess and monitor eye health. At Orillia Eyewear & iCare in Orillia, these tools help us detect signs of disease long before you notice symptoms, and that can be the difference between treatable changes and permanent vision loss. Learn more about our advanced technology.
This article covers five serious eye diseases that OCT scans can detect early, and why you might want to include this imaging in your next eye exam.
What Is an OCT Scan?
An OCT scan is a painless, non-invasive imaging test that captures high-resolution, cross-sectional images of the retina, the light-sensitive tissue at the back of the eye. Think of it as a detailed map of the eye’s internal layers.
Unlike traditional photos that capture the retinal surface, OCT allows us to see changes beneath the surface, often before they’re visible to the Dr. Kingstone or the patient. We combine this technology with digital retinal imaging at every comprehensive eye exam for patients who need it. Explore our full eye care services here.
Why Early Detection Matters
Many eye diseases begin silently. You may feel fine and see clearly, but structural damage could already be happening behind the scenes. When we detect disease early, we can:
- Monitor subtle changes over time
- Start treatment before damage progresses
- Protect your long-term vision
Our OCT and retinal imaging tools support a preventative approach to eye health, something we’re proud to offer here at Orillia Eyewear & iCare.
1. Glaucoma: Silent Vision Loss
Glaucoma causes damage to the optic nerve and is often linked to elevated eye pressure. Known as the "silent thief of sight," glaucoma progresses slowly and without symptoms until irreversible vision loss has already occurred.
How OCT Helps
OCT scans detect early changes in the retinal nerve fiber layer and optic nerve head. These changes often occur years before peripheral vision starts to decline. Regular scanning allows us to begin glaucoma management sooner, reducing the risk of vision loss. See how we use OCT in our advanced diagnostics.
2. Age‑Related Macular Degeneration (AMD)
Age-related macular degeneration affects the macula, the part of the retina responsible for sharp central vision. It’s one of the leading causes of vision loss in adults over 60.
OCT’s Role in AMD Detection
OCT scans identify early signs such as:
- Drusen (tiny yellow deposits)
- Retinal thinning or thickening
- Fluid build-up in or under the macula
With early diagnosis, we can guide you through diet, lifestyle, and treatment options to slow AMD progression. Read more about how our eye exams go beyond basic screening.
3. Diabetic Retinopathy
Diabetes affects more than blood sugar, it impacts the blood vessels in the retina, leading to diabetic retinopathy. The scary part? You might not feel any different until serious damage has been done.
How OCT Scans Support Diabetic Eye Health
OCT imaging detects:
- Retinal swelling (diabetic macular edema)
- Leaky or blocked vessels
- Changes in blood flow
By identifying these issues early, we can help you prevent diabetic vision loss. If you have diabetes, regular diabetic eye exams with OCT are strongly recommended. Schedule your next eye exam with us.
4. Retinal Tears and Detachments
A retinal tear or retinal detachment can threaten vision permanently if left untreated. These conditions may cause flashes, floaters, or shadows, but they’re not always easy to recognize early.
The Value of OCT
OCT helps us detect subtle signs of pulling or separation in the retina before full detachment occurs. With this early view, we can refer you to a specialist for treatment that could save your sight.
5. Central Serous Retinopathy (CSR)
Central serous retinopathy (CSR) causes fluid buildup beneath the retina, often in younger adults experiencing high stress or cortisol imbalance. CSR may resolve on its own, but some cases become chronic and require treatment.
How OCT Guides Monitoring
OCT scans visualize fluid accumulation and help us track changes over time. This is especially important if the condition recurs or impacts vision significantly. Learn how our diagnostic technology supports individualized care.
When Should You Get an OCT Scan?
OCT scanning is recommended if you:
- Are over 50
- Have diabetes or high blood pressure
- Have a family history of eye disease
- Have experienced vision changes
- Have been diagnosed with AMD, glaucoma, or retinal problems
If you’re not sure whether OCT is right for you, talk to our team during your next /appointment-request-form/. We’ll assess your risk and explain your options.
More Than Just a Vision Test
At Orillia Eyewear & iCare, we don’t just check your prescription. We assess the full health of your eyes using advanced diagnostics like OCT scanning, corneal mapping, and digital retinal imaging. Every exam includes time with an experienced Dr. Kingstone who will explain your results clearly and answer any questions. Meet our eye care team here.
Book Your Next Eye Exam in Orillia
Has it been more than a year since your last eye exam? Do you have a family history of eye disease or just want peace of mind?
Our friendly team is here to help. Early detection matters, and with OCT imaging, we can see what others might miss.
Request your next eye exam with Orillia Eyewear & iCare in Orillia and protect your sight for the future.

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