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Oct macular test9/28/2023 ![]() You will be seated in front of the OCT machine with your head rested on a support that keeps it from moving. The optometrist may use dilating eye drops in your eyes which widen your pupil to produce a better scan in the OCT. Optical Coherence Tomography is perfectly safe and can be performed in around 10-15 minutes. Having an accurate image of your retina also allows for a treatment plan to be tailored to your specific requirements. These measurements can reveal abnormalities and help us to detect diseases of the retina such as age-related macular degeneration and diabetic eye disease. With OCT we can see each of your retina’s distinctive layers which we measure and map for thickness which help us assess the health of your retina. In fact, up to 80% of vision impairment and blindness can be prevented by early detection. With OCT we can generate a highly detailed 3D image of the retina which will allow us to have a better view of your eye health.Īs optometrists our biggest ally in the treatment of vision impairment is early detection. This can be a mild change in normal vision do to changes in the structure of the eyeball consistent with normal ageing or it could be a symptom of something more serious. Most people experience a change in their vision by the time they reach their early 40s. The OCT exam can determine if there have been changes to the fibers of the optic nerve, such as those caused by glaucoma. OCT is also useful in detecting disorders of the optic nerve (the collection of nerve fibres which send signals from the retina to the brain). Other procedures only show the surface of these structures. This procedure is currently the only one that shows in-depth images of the eye’s internal structures. This scan allows us to see detailed images of the retina (the innermost layer of the interior eye), enabling us to accurately detect, monitor and control changes to the retina. It is often referred to as a ‘3D Eye Scan’. It is non-invasive and uses light waves only to produce a cross-section image of your retina. Optical Coherence Tomography (or, OCT) is often likened to an MRI or x-ray as it is a sophisticated scanning system that produces highly detailed images of the retina (the light-sensitive tissue lining the back of the eye).
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