Diabetic keratopathy, the most common is dry eye, due to peripheral neuropathy, transient response is not sensitive, prone to dry eye, usually need to order artificial tears to relieve symptoms. If epithelial damage occurs, it is easy to secondary infection caused by keratitis corneal ulcers, treatment is difficult, affecting vision, and in severe cases, even lead to perforation. So in ordinary life should control the blood sugar, go to the hospital in time to monitor the blood sugar concentration. In addition, we should go to the ophthalmology department in time to see if our situation is serious, usually the diet is based on food with low blood glucose concentration, and insist on doing exercise, which is more conducive to the recovery of the condition.