Diabetes Affects the Eyes Gradually and can Greatly Affect Vsion
Diabetes affects your eyes when your blood glucose, also called blood sugar, is too high.
The duration of diabetes is the strongest predictor for development and progression of diabetic retinopathy.
If blood glucose stays high over time, it can damage the tiny blood vessels in the back of your eyes. This damage can begin pre diabetes, when blood glucose is higher than normal, but not high enough for you to be diagnosed with diabetes. Damaged blood vessels may leak fluid and cause swelling. New, weak blood vessels may also begin to grow. These blood vessels can bleed into the middle part of the eye, lead to scarring, or cause dangerously high pressure inside your eye. Over time, diabetes can cause damage to your eyes that can lead to poor vision or even blindness.