Regular examinations are especially important for diabetic patients. Diabetes is a common disease and is the leading cause of vision loss from age 20-65. High blood sugar levels may cause blood vessel damage in the body, and the blood vessels in the eye are no exception. Diabetes can cause swelling of the macula (responsible for central vision), leading to central vision loss.

Diabetic eye examinations monitor blood vessel health and detect any retinal changes. Diabetic patients should have their eyes examined at least once a year.