It is well known that people with diabetes often suffer from eye complications that can lead to vision impairment or even blindness. Yet there is no shortage of patients who have had diabetes for many years including those requiring insulin therapy who have good vision. So how do you have healthy eyes? The first step is to control diabetes early. Poor blood sugar control is the root cause of diabetic retinopathy. Chronic high blood sugar can lead to the development, progression and worsening of diabetic retinopathy. If blood glucose control is started before the development of fundopathy, the development of fundopathy can be avoided. Next, screen the fundus regularly. The benefits of regular fundus screening are timely detection and treatment of fundus lesions, and the ability to understand microvascular complications and adjust treatment plans in a timely manner. type 2 diabetic patients should have their first fundus examination once the diagnosis is clear, and if there are no fundus lesions should have their fundus examined once a year. If fundus lesions are found, they should be followed up as prescribed by the doctor. Timely laser treatment. Patients who already have combined diabetic retinopathy can also maintain better vision with timely laser treatment. Avoid late complications of diabetic macular edema and proliferative diabetic retinopathy, the latter of which includes vitreous hemosiderosis and retinal detachment by traction and neovascular glaucoma. Treatment to control blood glucose, blood pressure and lipids is particularly important to prevent diabetic macular edema. Timely laser treatment can reduce the occurrence of late complications. Treatment of the systemic condition should also be emphasized, otherwise the condition may still progress to the point of endangering vision.