Definition: slow damage to the retina of the eye because of diabetes.
Causes
Because of prolonged exposure to high levels of blood sugar, the blood vessels in the retina become damaged. Part of the explanation of this damage is a process known as cross-linking which is accelerated in diabetics. In the early stages (non-proliferative diabetic retinopathy), the blood vessels in the retina leak, causing blurry vision. In later stages (proliferative diabetic retinopathy), new blood vessels begin to form in the eye. These new vessels easily bleed and can cause permanent damage to your vision.Prevention
The best way to prevent diabetic retinopathy is to tightly manage blood sugar, blood pressure and cholesterol. All diabetics should see their eye doctor every year to check for signs of damage. Some medications and surgeries exist which may help (and more are being researched), but often the damage is permanent.Sources:
Diabetic Retinopathy. Adam Medical Encyclopedia.
