In clinical work, there are often parents who say, “Myopia, the more glasses you wear, the deeper the myopia!” In fact, this concept is wrong. As long as the prescription of glasses is correct, the deepening of the prescription is not caused by wearing glasses. On the contrary, if you do not wear glasses, because you can not see objects, easy to see fatigue, more likely to lead to myopia deepening. In addition, if the refractive error (myopia, hyperopia or astigmatism) is accompanied by amblyopia, wearing glasses is the best way to treat amblyopia, but not wearing glasses will make it miss the good time for treatment. So why do some children get deeper and deeper since they started wearing glasses? In fact, it is not directly related to wearing glasses, but because the child’s myopia has progressed again. As for why myopia continues to progress, the reasons are complex and so far there is still no definite conclusion on the cause of myopia development, but there are some risk factors that have been clarified. 1, close eye time is too long On the one hand, now children’s academic pressure is getting heavier and heavier, a long time in a day spent on reading and writing; on the other hand, due to the rapid development of electronic products, many children use computers, TV, Ipad, cell phones for a long time, long time close eye use is the culprit of myopia degree deepening. 2. Lack of time for outdoor activities Some studies have found that children who spend a lot of time outdoors can reduce the risk of myopia to a certain extent. Currently, many children spend much less time outdoors, which is also one of the reasons for the deepening of myopia. 3, poor visual environment incorrect reading and writing posture, lying on their backs to read and write, lying in bed to read and play with cell phones, not enough light when studying, long-term in a dim learning environment is also likely to lead to myopia deepening. 4, both parents suffer from myopia The influence of myopia factors in addition to the above environmental factors, genetics is also an important reason, research shows that both parents are myopic children than the parents are not myopic children have a significantly higher chance of myopia. 5, bad dietary habits In addition, in recent years, more and more research on the relationship between myopia and nutrition, research shows that a high-fat, high-sugar diet may increase the risk of myopia, parents can properly control the diet of children, refuse to picky eating, overeating and other bad habits.