The human eye is like a camera, the retina in the eye is like the negative in the camera, the macula is a part of the retina, it is the sharpest part of the retina to see things, the most central vision when people see things is the macula is responsible for, so once the disease occurs in this part of the macula, it will seriously affect the vision. To prevent age-related macular degeneration, we need to keep the following 5 measures in mind: Measure 1: Wear dark glasses (polarized glasses are recommended) Scientists have found through long-term research that the short-wave visible light in sunlight, namely violet and blue light, has a great destructive effect on the retina, which can cause the death of photosensitive cells and lead to macular degeneration, called the “blue light injury phenomenon “. Therefore, usually go out should wear dark glasses to filter harmful light, but not the darker the better, to wear gray, green as the best, these two colors can not only resist ultraviolet light, and the best clarity of vision; measure two: refuse to smoke smoking is a variety of cardiovascular and cerebrovascular disease is the main risk factors, is also one of the risk factors of age-related macular degeneration. Smoking can produce different degrees of damage to various tissues of the eye. The harmful components contained in tobacco are mainly nicotine, tar, polycyclic aromatic hydrocarbons and carbon monoxide. Smoke also contains many heavy metals and harmful minerals, such as aluminum, lead, and mercury. Nicotine 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. Therefore, older people who love to smoke are advised to quit smoking in a timely manner; Measure 3: Eat more vegetables and fruits to supplement the nutrients A large intake of foods rich in lutein, zeaxanthin, as well as vitamin C and vitamin E. These nutrients are important antioxidants. All of the above nutrients are important antioxidants that prevent damage to the optic nerve cells from free radicals, while lutein also has the effect of filtering blue light, thus helping to improve or slow down the aging of the eyes, and also protect the macula from the damage of violet and blue light. Harvard Medical School study pointed out that adequate daily intake of the above-mentioned foods can reduce the chances of developing age-related macular degeneration by 43%. In addition, drinking a little red wine every week has the effect of promoting microcirculation; Measure 4: Keep healthy and control chronic diseases Prevent and cure arteriosclerosis, monitor blood pressure and blood sugar, and prevent the damage caused by high blood pressure and high blood sugar to microvessels; Measure 5: Self-observation and regular eye checkup Cover one eye with one hand and gaze at the distant scene with the other eye to check whether the vision of each eye has decreased than before; or Look at window frames with line grids and other vessels with lines and quadrants, and see if the lines become curved, the squares become smaller or deformed, etc. In addition, pay attention to the presence of dark shadows obscuring in front of the eyes. Once you find that your vision gradually decreases, the lines become curved, the squares become deformed or smaller, and there are fixed black shadows in front of your eyes and other abnormalities, you should go to the hospital promptly.