How to prevent myopia 1, pay attention to environmental factors: classroom light should be bright, desktop, blackboard do not reflect too strong, left and right sides should be windows, not too high, too small, in order to sit in the classroom any position can see the window is appropriate, and regularly change the seat; children at home should be placed in front of the desk outside the window of the unobstructed objects, desk lamps should be placed in front of the left side, the light should be soft, such as incandescent lamps, preferably for 25 ~ 40W Between the location to not directly irradiate the eyes as appropriate; in addition, it is best to choose a tablecloth, which can reduce the desktop reflection on the eyes. TV distance from the eyes is best in more than 3m. 2, change the game: modern city children’s games are mostly indoor self-entertainment-based, such as personal toys, game consoles, computers, television, etc., has rarely seen children’s spontaneous outdoor collective games, such as hide-and-seek, attack the castle, etc., so that the child has been less than pathetic a little bit of after-school time is almost out of the house, every day, very few chances to be able to get out of the environment of the eyesight. For this reason, parents and teachers should encourage children to change the way of play, more outdoor activities. 3, reform of the education system: eye development generally stops before the age of 18 ~ 20 years, myopia at the age of 12 to 18 years old for the rapid development of the period, and because of the problems of the education system, during this period is the heaviest pressure of learning, the busiest homework, homework the most of the period, so that young people outdoor activities significantly reduce the long-term state of the near vision. For this reason, even from the ophthalmic point of view, should also reform the education system, reduce the burden of learning. 4, pay attention to eye health: to educate young people to pay attention to eye health, reading, pay attention to the distance between the eyes and the book, the posture should be upright, can not lie down to read or read while walking; pay attention to the reading of the lighting should be sufficient, reading and writing for 40 minutes should be rested, see far, can not be too much indulgence in game consoles, television. 5, pay attention to eye health: adhere to daily eye exercises, crystal exercises (rhythmic and rapid alternation of looking away from the near); self-acupressure (eye, save bamboo, fish waist, silk bamboo air, Cheng sob, four white, etc.); fog vision therapy (wearing +1.50D glasses vision) 6, vision loss should be promptly to the hospital for examination and treatment. In addition, we should also pay attention to dietary habits and nutrition, to avoid the lack of chromium, calcium and other trace elements. From the eugenic point of view, when choosing a spouse, you should also try to avoid close relatives and two people are highly myopic.