For a five-year-old child, normal vision should be between 0.6 and 0.8, which is the normal range of vision. For five-year-old children, as they are in the critical period of vision development, it is recommended to have a vision examination every six months or so, so that you can understand the development of your child’s eyesight, and if there is a problem of vision development disorder, such as refractive error, you will be able to detect it early and make early intervention. In the early stages of the disease, such as pseudomyopia, pseudomyopia can be restored to normal as long as reasonable eye habits are observed and local ciliary muscle paralytics are applied, but once true myopia develops, it is impossible to restore it to normal. Therefore, it is very necessary for five-year-olds to have regular vision checkups, and if myopia does appear, they should be fitted with glasses early.