Diabetic retinopathy is an eye condition that affects people who have diabetes. At first, it only causes mild blurriness and no other symptoms, but it can lead to permanent blindness if diabetic retinopathy eye problems left untreated. It is caused when the blood vessels of the light-sensitive tissues in the eye get damaged. It usually affects both the eyes. If you have diabetes, you need to have a dilated eye health exam at least once a year. As this condition may not have symptoms at the initial stage, it is essential to take eye tests to diagnose or rule it out as soon as possible. Next should know about the Diabetic retinopathy Causes .