China has now jumped to the first place in the world in terms of the number of people with diabetes. A patient once told me that diabetes is not scary, what is scary is his complications. The most common complications of diabetes are diabetic retinopathy and diabetic nephropathy, which is damage to the microvasculature. It can destroy the blood-eye barrier, causing leakage of blood vessels in the fundus, capillary occlusion, retinal neovascularization, and eventually vitreous accumulation of blood and retinal detachment. Once patients are diagnosed with diabetes, they should control their diet, take reasonable medication, keep their blood glucose stable within the normal range, and most importantly, avoid sudden highs and lows in the school, and should have their fundus checked once every 3-6 months. The condition should be treated promptly. Diabetic retinopathy can be treated with medication, laser treatment or surgery depending on the severity of the condition. If laser treatment is needed during the examination, it must be performed in a timely manner without delay, because all treatments generally cannot restore vision, but can only delay or stop vision loss. And all the efficacy of treatment requires blood sugar control to ensure. There are a few patients who have good blood sugar control, but the retinopathy cannot be controlled. In addition, many patients often combine cataracts, which can accelerate the development of diabetic retinopathy, so it is best to do fundoscopy and laser if necessary before surgery. Normal people should pay attention to the annual physical examination, check blood sugar. To avoid delay.