You don't need glasses for myopia. If your myopia is not serious or only one eye is nearsighted, you don't need to read or write at ordinary times, and you don't need to wear glasses for close-up use.

And if you have astigmatism, amblyopia or deep myopia, you must wear glasses.

Everyone has different degrees of myopia. If you feel blurred vision, you should check your vision. If you find that you have myopia above 300 degrees after examination, it is recommended to wear glasses all the time, which is not only convenient for life and work, but also can effectively avoid the increase of degrees. People below 300 degrees don't have to wear eyes all the time without affecting their eyesight. Wear it only when your eyes are tired.

Whether there is astigmatism, many people often watch mobile phones or computers, which can easily lead to astigmatism in people's eyes. If they don't wear glasses to correct it, it will aggravate astigmatism, make things more blurred and appear ghosting.

Degree increase. If people with low myopia don't wear glasses often, they will find that the degree has increased after a period of time. At this time, they should always wear glasses, which can alleviate the discomfort of their eyes.

One eye is nearsighted, and some people are used to using their left or right eyes when reading or watching TV, which will lead to excessive fatigue in one eye, thus making one eye nearsighted and the other eye normal. However, in this case, it is best to wear glasses to make both eyes reach a balanced state.