The main reason to wear glasses all the time is the degree of refractive error. It is generally believed that if the refractive error is mild, such as low myopia. As it does not cause a very obvious loss of vision, so you can not need to wear them for a long time, only when you use your eyes in general, not when you go out or at close range. However, if the prescription is high, causing a significant loss of vision and blurred vision, you need to wear it for a long time. If you don’t wear them, it’s easy to cause eye fatigue, which will make the myopia grow faster and faster over time. Therefore, if there is refractive error in the eyes, it is important to decide whether you need to wear glasses all the time depending on the degree of vision loss and the severity of the refractive error.