Macular degeneration is one of the most common causes of vision loss in the elderly, but it is also increasingly affecting middle-aged people. An OCT scan helps detect the problem early and helps to monitor the disease effectively. In the case of glaucoma, it is important to diagnose the problem as early as possible, as the slow progression of the disease causes ongoing damage to the cells and nerve fibres involved in vision, which in the long term causes a narrowing of the visual field and permanent damage to vision. Why is an OCT scan particularly important? If you have received eye drops to dilate your pupils, your eyes may be more sensitive to light for a few hours and your vision may become blurred. The test is completely painless and risk-free. The test takes a short time, a few minutes. The eye is focused on a coloured target inside the machine. The OCT machine then scans the eye without touching it. The test is carried out in a dark room, in a seated position, with the patient resting their chin and forehead on a support attached to the machine so that they do not move. In most cases, it may be necessary to apply a dilating eye-drop, which dilates the pupil, making it easier to perform the scan. No special preparation is needed to perform an OCT scan. The need for an OCT scan is decided by your ophthalmologist, but of course you can also initiate it if you have a medical condition such as age-related macular degeneration, other macular diseases, glaucoma, maybe diabetes, hypertension, or other internal medical conditions caused by fundus lesions. The front of the eye can be examined with high accuracy, which can be useful in various corneal diseases and glaucoma. Hereditary or acquired macular diseasesĪn anterior segment OCT scan is used to look for corneal lesions.OCT scans are used to diagnose various eye diseases and to decide on the effectiveness of treatments, such as: In such cases, it may also be used as a screening test. Your ophthalmologist may recommend an OCT scan if you are over a certain age and/or at risk of developing certain eye conditions. When is optical coherence tomography needed? The results of the examination also provide a good indication of the course of the diagnosed disease and the effectiveness of treatment. Timely and accurate diagnosis is essential to enable your eye doctor to start appropriate treatment as soon as possible. The colour-coded images provide a great deal of information that can help your eye doctor measure the thickness of the retina and identify optic nerve abnormalities. OCT scanning uses optical imaging (without radiation) to produce higher resolution images of the layers of the retina and the optic nerve. The OCT eye scan produces three-dimensional, colour-coded, cross-sectional images of the retina, allowing the detection of asymptomatic, early lesions that cannot be seen during other examinations. Its role is to provide accurate information about the areas responsible for vision and any abnormalities in the eye. Today, OCT is an indispensable tool for checking the health of your eyes. OCT (Optical Coherence Tomography) is one of the most important diagnostic tools in modern eye examinations, and can be used to diagnose many serious eye diseases at an early stage.
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