Diabetes Eye Exam Diabetes is the leading cause of preventable new onset blindness in working age adults. You can have diabetic eye disease and not know it as it is painless and often has no symptoms until very advanced stages. Deborah K. Schlossman, M.D., of the Beetham Eye Institute at Joslin Diabetes Center, explains why an annual eye exam and appropriate care can reduce the risk of blindness and increase your chances of preserving sight.  Rating 0/10 Views 361 Duration 01:52