The formation of myopia is mainly related to genetic and acquired formation. If both parents or one parent has myopia, the probability of myopia in the next generation will be significantly higher, and this condition cannot be prevented. However, myopia can be prevented through good eye habits, diet and lifestyle adjustments. I. Develop good eye habits 1. Eye time: Try to avoid prolonged and close eye fatigue, adults should not use their eyes for more than one hour for a long time, do appropriate eye massage, and look far into the outdoors. The younger you are, the shorter the duration of eye use, and for children over 7 years old, do not use your eyes for more than 0.5 hours at a time. If the age is less than 7 years old, generally do not exceed 20 minutes, and pay attention to rest and relaxation after using eyes; 2. Eye posture: posture must be correct, keep a certain distance between books and eyes, do not lie down or lie on the bed to read books. Ensure the right light in the room, do not read under the direct sunlight; 3, control the use of electronic products: should reduce or avoid the use of electronic products, such as cell phones, game consoles, computers, etc.. For minors, the time of electronic products use should be strictly controlled, is the key to prevent myopia. Second, diet, habits adjustment 1, diet adjustment: diet as little as possible to eat sweets, do not drink carbonated beverages, eat more nutritious and balanced food, eat more food rich in vitamin A, vitamin C and vitamin E, such as fresh vegetables, fruits, etc.; 2, sufficient sleep: must ensure sufficient sleep time, can make the eyes get sufficient relaxation. Elementary school students try to ensure 10 hours of sleep, junior high school students for 9 hours, adults should reach 7-8 hours; 3, outdoor activities: advocate more contact with nature, at least 2 hours of outdoor activities every day, appropriate sports such as basketball, table tennis, running, etc.; 4, regular check-ups: minors try to do 3 months to review the situation of the eyes, adults are best to review once every six months, in order to To detect abnormalities in time and prevent eye myopia.