http://www.nei.nih.gov/health/diabetic/retinopathy.asp
National Eye Institute, National Institutes of Health
This pamphlet has been written to help people with diabetic retinopathy and their relations better understand the disease. It describes the cause, symptoms, diagnosis, and treatment of diabetic retinopathy. Diabetic retinopathy is a potentially blinding complication of diabetes that damages the eye's retina. It affects half of the 14 million Americans with diabetes.