Age-related macular degeneration (AMD), also known as age-related macular degeneration, is a multifactorial blinding disease that progresses with age. Clinically, it is characterized by progressive vision loss, visual deformation and macular degeneration. The methods to prevent macular degeneration are as follows: 1. Pay attention to the use of eyes usually pay attention to rest not to overuse eyes to avoid the formation of myopia. Avoid long time continuous operation of computer, pay attention to rest in between, usually 1 hour continuous operation, rest 5-10 minutes. Maintain good living habits, sleep enough, do not stay up late. Normally, you can wear dark glasses when you go out to avoid light damage; 2. Prohibit smoking. Nicotine within tobacco can cause vasoconstriction, leading to ischemia and hypoxia in eye tissue. Nicotine and carbon monoxide can cause changes in blood viscosity and increased platelet aggregation, which can easily lead to thrombosis and can cause eye vascular disease; 3, intake of adequate vitamins. Eat foods rich in lutein, zeaxanthin and vitamin C, vitamin E. Antioxidants can prevent damage to the visual cells by free radicals, but also the role of filtering blue light, thus helping to improve or delay the aging of the eyes, degeneration, and protect the macula from the damage of purple and blue light. Foods containing sufficient of these substances are: dark green vegetables, such as spinach, cilantro, cauliflower, peas, etc.; yellow fruits and vegetables, such as carrots, tomatoes, sweet potatoes, corn, citrus, etc.; and eggs, fish, algae, etc.. Fish contains a variety of unsaturated acids inside, with strong antioxidant capacity; 4, monitor blood pressure, blood sugar. Because the substantial changes of high blood pressure and high blood sugar are very likely to cause microvascular damage and cause macular damage. Effective control of hypertension can significantly reduce the incidence of macular degeneration or slow down the development of such diseases. The other eye should look at a distant scene and check whether the vision of each eye has decreased than before, for example, look at a window frame with a line grid or other with lines, whether there are curved lines, smaller squares or distortion, etc. Also, pay attention to the presence of dark shadows obscuring the eyes. Once you notice a gradual decrease in vision, a curved line, a distorted or smaller square, a fixed black shadow in front of your eyes and other abnormalities, you should go to the hospital promptly.