Myopia in children is caused by a variety of factors, so there are a variety of treatments that address the causes. Since the cause of myopia is multifaceted, all factors should be taken into account and comprehensive treatment should be done. In fact, prevention is the most important, prevention can not only not form myopia, can also make myopia no longer aggravate, and even reduce: 1, diet: emphasis is on balanced, not partial food. 2, eye hygiene: can also be called eye habits. Bad habits can easily form myopia or aggravate myopia. Including the “three one: hold the pen finger from the pen tip an inch; chest from the table a fist; eyes from the book a foot”. (1) reading and writing posture: not lying, not hunched back, chest from the table a fist, not lying on the table; (2) eye distance from the book: a foot can not be too close; (3) long time with the eyes: not too long, in the middle to take appropriate breaks, do eye exercises, look into the distance, and so on. (4) too bright light: too bright, the eyes are easily fatigued; (5) too dark: too dark, the child naturally close to read and write, and over time myopia; (6) special emphasis can not let children play cell phones, one is the screen is small, small words; two is the screen brightness is not good; three is some children play in the mobile, eyes easily fatigued; (7) genetic factors: myopia is a genetic factor, many patients have Myopia family history. Since it is family hereditary, there is certainly no way to prevent and treat it. In fact, optometry after myopia has formed is the most conventional and effective treatment to improve vision. There are many other treatments available, and there is no shortage of exaggerated efficacy. However, no authority has yet been able to define treatment norms for how effective they really are. Therefore, it can also be said that the efficacy of various treatments in the society is not exact. I believe that some children have seen results after treatment because of a change in philosophy, eye hygiene, and most importantly, because children’s eyes are variable and malleable, among other reasons.