Nowadays, more and more people have myopia, especially in adolescence, but most of myopia in adolescence is pseudomyopia, a kind of functional myopia caused by excessive eye use and adjustment tension, so it is important to do a good job of preventing myopia in daily life. Here’s how to prevent myopia in adolescence. 1, reading and writing 1), develop the correct writing, reading posture, do not lie on the table or twist the body; 2), books and eyes should be maintained a city feet, reading time should not be too long; 3), writing and reading to have the appropriate light, light is best from the left side; 4), do not read and write in the light too dark light, reduce the burden of students, to ensure that the 10-minute break between classes to reduce vision fatigue. 2. Exercise 1), carefully do eye exercises, and actively carry out physical exercise to ensure that students have one hour of physical activity every day. 2) Pseudomyopia can be corrected by using the far fog vision method, massage exercises or crystal exercises, as well as physical therapy and medication. 3, watching TV 1), when watching TV, pay attention to the height of the TV set should be level with the line of sight; 2), the distance between the eye and the fluorescent screen should not be less than 5 times the diagonal length of the fluorescent screen; 3), when watching TV, the room should be open a small branch light electric lamp, which is conducive to the protection of vision; 4), after watching TV continuously for 1 to 1.5 hours to have a short break eyes high call to look into the distance, do eye exercises. 4, diet should eat more vitamin-rich food and a variety of vegetables and animal liver, egg yolk, etc..