Diabetic eye disease is difficult to cure completely, but the progression of the disease can be slowed down with aggressive treatment. Diabetic eye disease mainly includes diabetic retinopathy and diabetic macular edema. Diabetic retinopathy is mainly due to the damage of retinal microvessels caused by diabetes, coupled with the hypercoagulable state of the blood, it is easy to form blood clots, resulting in blood vessel rupture. When the lesion is serious, it will develop to the center, macular degeneration and macular edema will appear, thus affecting the patient’s vision. Therefore, diabetic patients should have regular fundus examination and early treatment when the lesion has not progressed or affected the retina. Blood glucose should be controlled within a good range, which can reduce diabetic microvascular complications. Patients with diabetic eye disease need to seek prompt medical attention for treatment.