Question: what is the difference between proliferative and non proliferative diabetic retinopathy?
Answer: In NPDR, the blood vessels in the retina are weakened. Tiny bulges in the blood vessels, called microaneurysms, may leak fluid into the retina. This leakage may lead to swelling of the macula. Proliferative diabetic retinopathy (PDR) is the more advanced form of the disease.