![]() When it is finished, your optometrist will go through your results with you. The scan doesn’t hurt, but some people may find the bright light a little uncomfortable. The machine will scan your eyes using low powered laser light to take images of the structures inside your eye, most commonly your retina – the thin layer of tissue that lines the back of the eye – and your optic nerve. You will be asked to sit in front of the scanner and rest your chin on the chin rest. They can then compare any scans taken at future appointments with this baseline scan to help them detect subtle changes which could be an early sign of some eye conditions. OCT scans can also be used to monitor the progress of signs of ageing or wear and tear in your eye, and some optometrists recommend taking an OCT scan to use as a record of what is normal for you. There may be an additional charge for an OCT scan, so if you do not want to pay for this, your optometrist may refer you to a specialist at the hospital to have this done free of charge. If your optometrist has an OCT machine they can offer to investigate this for you to see if you need to be referred for treatment. Without an OCT machine the optometrist may refer you to hospital to have this done free of charge. However, it can sometimes be difficult for your optometrist to decide whether the back of your eye is normal or if there is an abnormality that needs treatment. The routine sight test is good at detecting signs of eye disease. There may be an additional charge for an OCT scan. ![]() The images produced provide information about your eye health and may help your optometrist detect some eye conditions, such as glaucoma, diabetic retinopathy or age-related macular degeneration (AMD), with a greater degree of certainty. The optometrist, or an assistant at the practice, takes a high-quality scan of the back of your eyes to see your retina in more detail. The OCT scan provides the optometrist with additional information that can help contribute to a more accurate diagnosis and a more detailed record of the health of your eyes. ![]() ![]() Many optical practices now offer the option of having an optical coherence tomography (OCT) scan, alongside your sight test, or during a separate visit. ![]()
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