Diabetic retinopathy is a complication of diabetes mellitus that is marked by changes in the blood vessels in the fundus of the eye. These changes are caused by blocked vessels decreasing the blood flow within the retina. This results in a partial loss of vision or patchy vision (scotoma). Subject to the stage, it may lead to deposits forming, the growth of new blood vessels or even retinal detachment.
Although current medical treatments provide no cure, they slow down or stop its progression.