Diabetic ratinopathy

Diabetic retinopathy
Diabetic retinopathy is common complications of diabetes. It is characterized by progressive damage to the blood vessels of the retina, the light sensitive tissue at the back of the eye that is necessary for good vision. Diabetic retinopathy progresses through four stages, mild non-proliferative retinopathy ( microaneurysms ) moderate non-proliferative retinopathy ( blockage in some retinal vessels ) , severe non-proliferative retinopathy ( more vessels are blocked leading to deprived retina from blood supply leading to growing new blood vessels) , and proliferative retinopathy ( most advanced stages). Diabetic retinopathy usually affects both eyes.