Under normal circumstances, the naked eye vision of adults should reach 5.0 and above, if the eyes exist myopia, and lead to a decline in naked eye vision to 4.8, indicating that the eyes may exist mild myopia, for this case it is recommended that you can choose to wear a pair of glasses, but because the degree is not too high, so you do not need to wear long-term, you can wear them in class or when you use your eyes more, but usually when you go out You don’t need them when you go out. In ordinary life, you must maintain reasonable eye habits and minimize bad habits, including reading in a shaky car, lying down to read or using computers and cell phones for a long time, these habits are very bad and can easily cause myopia to deepen. If the degree of myopia further becomes larger, the impact on the naked eye vision will be more obvious, then the frame glasses are recommended to be worn for a long time.