Retina damage from diabetes

Retina damage from diabetes

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Credit: ISM/SCIENCE PHOTO LIBRARY

Caption: Retina damage from diabetes. Ophthalmoscope image of diabetic retinopathy, where severe damage to the retina has been caused by diabetes. Red blood vessels are seen emerging from the yellow optic disc (centre). The vessels have become blocked due to diabetes and have started to haemorrhage (bleed, red dots). This has caused a reduction in blood flow to other areas of the retina, leading to the proliferative growth of new capillaries (lower centre). The yellow patches (right) are areas of fatty substances that have leaked from the damaged blood vessels. Diabetic retinopathy may lead to blindness if left untreated. Bleeding can be treated by laser photocoagulation, and blood sugar level maintenance can slow the disease's progress.

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