Among the many myopia patients, except for a few who are caused by genetic factors, most of them are caused by improper eye use later in life. Bad eye habits are the main culprit in the formation of myopia in teenagers, so it is necessary to develop good eye habits to avoid myopia or make myopia inhibited or improved. 1, exercise, strengthen the system People are a unified whole, if the physical condition is not good, it will affect vision. Such as suffering from anemia, neurasthenia, malnutrition, endocrine disorders, or systemic fever disease period, vision is generally worse than usual. When depressed, sleep deprivation, long-term life irregularity, we also feel that there will be a decline in vision. Therefore we should pay attention to exercise and strengthen our system. At the same time, we should also develop good living habits and ensure sufficient sleep. 2, pay attention to nutrition, do not picky food Eye development requires adequate and comprehensive nutrition. Nutrient deficiencies, such as protein or vitamin deficiencies, can be a cause of myopia. In order to ensure the normal development of the eye, it is necessary to have a balanced diet and reasonable nutrition. Eat less candy and high-sugar foods, and eat more vitamin-rich fresh vegetables, fruits, animal liver and high-protein fish, meat and milk. 3, improve lighting, correct sitting posture The most ideal light source is natural light. Bad light sources can unknowingly cause damage to the eyes. Too strong or too weak light is harmful to the eyes. Numerous studies have shown that students’ myopia is directly related to the long-term application of unscientific lighting sources at night. Therefore, lighting must pay special attention to choose a good, bright enough lighting fixtures. Reading and writing posture should be correct. Eye from the book 1 foot away; this distance is in line with the eye regulation physiological function, can make the eye muscle regulation tension to the minimum degree, can reduce eye fatigue. To maintain a good reading and writing posture, it is necessary to correct the bad habits, such as crooked head, slanting eyes to see the written word, or lying down to read, or walking to read, or in shock, shaking conditions (such as car boat) or dusk when reading books. 4, abstain from watching TV, using the computer TV, computers into the family, children can grow knowledge from it, broaden their horizons. But they because of the strong light, the image has a sense of flicker, look too long, resulting in eye muscle regulation tension and fatigue, it will damage vision, myopia. So watch TV in moderation, pay attention to adjust the brightness of the TV, the distance should be appropriate, the position of the general distance to maintain and TV is about 3 meters. And computer distance to maintain at about 50-70cm, watching TV, computer duration should not exceed an hour, not more than 4 hours a day. Take a break for 10-15 minutes in the middle of continuous eye use. 5, often look away, do eye exercises Do not use your eyes for a long time. One side of the continuous close eye use in the middle of a short break, the time should not be too long, adolescents generally do not exceed one hour. Actively participate in outdoor activities, in order to regularly increase the visual distance, open up the field of vision, relax the adjustment, to maintain normal visual function. Frequent long-range vision training. In the specific practice of formation can be varied. For example, you can look at the trees or buildings in the distance, and you can also identify the stars in the sky at night. Do eye exercises regularly. Correct eye exercises can eliminate fatigue, enhance eye blood circulation, relax eye muscles, and have a positive effect on the prevention and treatment of myopia.