Diabetic retinopathy, also known as diabetic eye disease, is a medical condition in which damage occurs to the retina due to diabetes mellitus. It is a leading cause of blindness.[1] Diabetic retinopathy affects up to 80 percent of those who have had diabetes for 20 years or more.[2] At least 90% of new cases could be reduced with proper treatment and monitoring of the eyes.[3] The longer a person has diabetes, the higher his or her chances of developing diabetic retinopathy.[4] Each year in the United States, diabetic retinopathy accounts for 12% of all new cases of blindness. It is also the leading cause of blindness in people aged 20 to 64.[5]Source : Wikipedia
Features of diabetic retinopathy (Ministry of Health Diabetic Retinopathy Screening Team, 2012)