Ever heard of an ultrasound for your eyes? Optical Coherence Tomography (OCT) is one of a number of advanced non-invasive diagnostic technologies that help detect, prevent and treat vision problems and eye conditions early on. But what exactly is an OCT scan, how does it work, and why is it so beneficial for your eye care? Let’s dive in!
What is an OCT scan?
Optical Coherence Tomography, or OCT, is a state-of-the-art, non-invasive imaging technique that provides detailed, cross-sectional images of your eye. Think of it as an ultrasound, but instead of sound waves, OCT uses light waves to capture incredibly detailed images of the structures inside your eye.
These high-resolution images allow optometrists to view layers of the retina, the optic nerve and other important parts of the eye with unmatched precision. This makes OCT an invaluable tool for early detection, diagnosis and monitoring of various eye conditions.
What is an OCT scan used for?
OCT scans are used for a variety of purposes in eye care, particularly for detecting and monitoring conditions that affect the retina and optic nerve. Some common uses include:
Detecting glaucoma:OCT scans can measure the thickness of the retinal nerve fibre layer and assess the optic nerve for early signs of glaucoma, even before noticeable vision loss occurs.
Monitoring age-related macular degeneration:Age-related macular degeneration is a leading cause of vision loss in older adults. OCT helps detect changes in the macula, the central part of the retina, allowing for timely treatment.
Managing diabetic retinopathy:People with diabetes are at risk of developing retinopathy, which can lead to vision loss. OCT can identify fluid leakage, swelling or damage in the retina caused by this condition.
Diagnosing macular holes and puckers:OCT scans can reveal issues in the macula, such as holes or wrinkling, which can distort vision.
Assessing retinal detachment or swelling:OCT provides a clear picture of retinal integrity and any swelling or detachment that could threaten your vision.
How does an OCT scan work?
The OCT process is quick, painless, and requires no direct contact with your eye. Here’s what to expect during an OCT scan:
1. Preparation:You’ll be seated in front of the OCT machine, and your optometrist may ask you to place your chin on a support to keep your head steady.
2. Scanning:The machine emits a light beam into your eye. As this light reflects off the internal structures, the OCT device measures the time it takes for the light to return.
3. Image Capture:Using these reflections, the OCT software generates highly detailed cross-sectional images of your retina and other parts of your eye.
4. Analysis:Your optometrist reviews the images to identify any abnormalities or changes in the eye’s structure.
Why Choose an OCT Scan at Tomlinson Optometrists?
OCT technology is an essential tool for proactive eye care. Many eye conditions develop silently, showing no symptoms until significant damage has occurred. Regular OCT scans can detect these issues in their earliest stages, when treatment is most effective.
At Tomlinson Optometrists, we’re committed to protecting your vision with cutting-edge technology and personalised care. Whether it’s your first OCT scan or part of your ongoing eye health monitoring, you’re in good hands with our experienced team.
Schedule your next appointment today and let us help you maintain a lifetime of clear vision.
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Phone 021 797 7291, email kenilworth@visualcare.co or visit us at 278B Main Road, Kenilworth.
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