Diabetic retinopathy is a progressive disease in which there are four stages: Mild Nonproliferative Retinopathy, Moderate Nonproliferative Retinopathy, Severe Nonproliferative Retinopathy, and Proliferative Retinopathy. In stage two Moderate Nonproliferative Retinopathy, the tiny blood vessels that nourish the retina become blocked. As the condition continues to progress, more and more blood vessels become blocked and the retina sends signals for more blood vessels to be made. These new vessels break easily, le...
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