Diabetic eye disease is one of the common chronic complications of diabetes and can cause vision loss and even blindness in patients. The risk of blindness in diabetics is four times greater than in non-diabetics. Diabetics account for 12% of new cases of blindness each year, and 21% of newly diagnosed type 2 diabetics have some degree of retinopathy. Of the various eye diseases associated with diabetes, retinopathy is the most common. The retina is the lowest layer of the eye, rich in nerve distribution, and the photosensitive areas of the retina are of great importance to vision, and retinopathy will result in a significant loss of vision. Studies have found that 97% of patients with type 1 diabetes and 80% of patients with type 2 diabetes who have had diabetes for more than 15 years develop some degree of retinopathy, although most patients do not have significant vision loss at this time. Studies have also shown that strict glycemic control reduces the risk of retinopathy by 76% in type 1 diabetics and 25% in type 2 diabetics. Early treatment of diabetic retinopathy is more effective. Because of the irreversible nature of lesion damage, prevention is the most important aspect, and early prevention is far less expensive and more effective than late treatment. Therefore, diabetic patients should have their eyes examined annually with dilated pupils. 5 years after the onset of type 1 diabetes, and once a year from the onset of type 2 diabetes. If you have abnormal eye sensation, you should shorten the time of ophthalmic follow-up, such as once every six months or three months. At the same time, blood glucose and blood pressure should be strictly controlled, and blood lipids should be lowered to delay the appearance of diabetic retinopathy as much as possible.