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Retina damage from diabetes, angiogram
Fluorescein angiogram of the retina of the left eye of a patient where severe damage to the retina has been caused by diabetes (diabetic retinopathy). Blood vessels (light grey) are seen emerging from the optic disc (left). The vessels have become blocked due to diabetes and have started to haemorrhage (bleed, bright white areas). This has caused a reduction in blood flow to other areas of the retina, leading to the proliferative growth of new capillaries. 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., by ALAN FROHLICHSTEIN/SCIENCE PHOTO LIBRARY
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