What is Diabetic retinopathy?
{{Infobox disease | Name = Diabetic retinopathy | Image = Fundus photo showing scatter laser surgery for diabetic retinopathy EDA09.JPG | Caption = Photo of the back of the eye (''fundus'') showing where scatter laser surgery was done for diabetic retinopathy. | DiseasesDB = 29372 | ICD10 = {{ICD10|H|36||h|30}} ({{ICD10|E|10|3|e|10}} {{ICD10|E|11|3|e|10}} {{ICD10|E|12|3|e|10}} {{ICD10|E|13|3|e|10}} {{ICD10|E|14|3|e|10}}) | ICD9 = {{ICD9|250.5}} | ICDO = | OMIM = | MedlinePlus = 000494 | MedlinePlus_mult= | eMedicineSubj = oph | eMedicineTopic = 414 | eMedicine_mult = {{eMedicine2|oph|415}} | MeshID = D003930 }} '''Diabetic retinopathy''', is the most common eye disease caused by [[diabetes]], it damages the [[retina]]s in both eyes, causing vision problems which may lead to [[blindness]]. It affects up to 80 percent of all patients who have had diabetes for 10 years or more. However it is possible that at least 90% of these new cases could be kept from becoming severe with early diagnosis and proper treatment. ==Signs and symptoms== [[File:Diabetic retinopathy-NIE.gif|thumb|380px|right]] {{multiple image | align = left | direction = horizontal | image1 = Eye_disease_simulation,_normal_vision.jpg | width1 = 153 | caption1 = Normal vision. | image2 = Eye_disease_simulation,_diabetic_retinopathy.jpg | width2 = 190 | caption2 = With diabetic retinopathy. }} Diabetic retinopathy often has no early warning signs. As new blood vessels form at the back of the eye as a part of ''proliferative diabetic retinopathy'' (PDR), they can bleed (ocular hemorrhage) and blur vision. The first time this happens, it may not be very severe. In most cases, it will leave just a few specks of blood, or spots, floating in a person's visual field, though the spots often go away after a few hours. These spots are often followed within a few days or weeks by a much greater leakage of blood, which blurs vision. In extreme cases, a person will only be able to tell light from dark in that eye. It