What Is Proliferative Diabetic Retinopathy? Proliferative diabetic retinopathy is a sight-threatening condition caused due to diabetes. Unlike non-proliferative diabetic retinopathy, proliferative diabetic retinopathy involves blood vessels. This is an advanced stage of diabetic retinopathy. The patient may not experience symptoms but is at high risk of partial or complete vision loss. In poorly controlled diabetes,
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