Symptoms of eye problems in diabetics can vary depending on the underlying cause, but typically include blurred vision, blindness and hemorrhages that can lead to retinal scarring, explains the American Diabetes Association. For example, proliferative retinopathy caused by diabetes can cause retinal damage, while untreated glaucoma can cause blurred vision.
Temporary blurred vision in diabetics is often due to high blood sugar levels, explains WebMD. High blood sugar in diabetics often leads to accelerated swelling of the eyes, which in turn can alter vision. Temporary sight issues can often be corrected by dietary changes that balance out the blood sugar in the body. However, it is always important for diabetics with vision problems to consult with a physician, as symptoms may indicate cataract development or other conditions in which surgery or additional treatment is required.