Children over the age of 6 should have a vision of 1.0. If you find that your child does not have 1.0, you must go to the hospital for a timely examination. A dilated eye exam is usually required, and if the child is diagnosed with true myopia, glasses are needed to correct it. Most myopia is axial myopia, because the length of the eye axis exceeds the normal range, so the first thing to do is to go through an accurate optometry to determine the degree of myopia, and then use a suitable concave lens, so that after the light is dispersed into the refractive system of the eye, it can be focused on the retina, so that you can see long-distance objects and can get a clear correction. You can consider frame glasses or choose keratoplasty lenses for correction. Among them, keratoplasty lenses have a certain effect on inhibiting the development of myopia for some mild to moderate adolescent myopia patients. It is now generally accepted that having children spend more time outdoors in general can effectively prevent myopia. Two hours a day, ten hours a week or more. So, as much as possible, let your child use after school or after school, weekend time, to participate in more outdoor sports, not all day in the room. Also, pay attention to your child’s study posture and the light of the environment, and avoid long hours of close eye use.