Myopia is a common disease of the eye, especially in children and adolescents, especially in recent years, the popularity of electronic products, resulting in a year-on-year increase in the incidence of myopia. The causes of myopia are complex, but there are two main types of myopia: the first is a congenital hereditary factor, if parents or immediate family members have high myopia, the likelihood of myopia will be much higher than normal. The second is related to poor eye habits, such as the eyes being in a state of prolonged close eye use, which may cause the ciliary muscle to become too tense, resulting in the appearance of myopia. In this case, it is recommended to pay attention to reasonable eye habits and minimize the time of continuous eye use at close range, which can only alleviate and prevent the appearance of myopia. In addition, you can increase the time spent outdoors, which is currently recognized as the most effective way to prevent myopia.