If a child has 100 degrees of myopia at an early age, this situation should be taken seriously, because the earlier the age of myopia, the greater the possibility of high myopia in the future, and myopia is a disease that can not be restored to normal, once it appears, there is no conservative treatment methods, can make the degree again lower or back to normal, only through a variety of corrective methods to improve vision. Therefore, once a child has myopia, first of all, he or she should go to a regular hospital for an optometry and wear glasses; secondly, he or she should keep reasonable eye habits and try to avoid some bad eye methods, such as using the eyes at close range for too long and reading too close, which are not good for the development of the eyes. In general, we must keep appropriate outdoor time, which can effectively slow down the development of myopia.