Myopia will be more stable in adulthood. Generally, myopia will be relatively stable in boys around 18-20 years old, and in girls around 18 years old. Some adults may experience some myopia growth in adulthood. If the growth of myopia is not much, about 100-200 degrees is also a normal increase, which is related to the acquired eye habits and slight changes in the tissue structure of the eye, which is also a physiological change and does not need much attention. If the growth rate of myopia is still very fast every year after adulthood, we should consider the possibility of pathological myopia, that is, myopia is very high, growing very fast, corrected visual acuity will continue to decline, is the pathological performance. Active treatment or intervention is needed to slow or control the growth of this type of myopia.