Is a child with apparently no visual impairment normal? No. For example, refractive amblyopia is a condition in which one eye is developing normally and the amblyopic eye with a higher refractive error and abnormal visual development is covered up, so that it does not appear to have any abnormalities on the surface. It is usually found when you are in your teens. It is past the age of amblyopia treatment. There is no way to treat it. So parents of children are advised. Whether the child has abnormal performance. It is necessary to go to the hospital to check. If the test is normal, you can rest assured. Once the abnormality is detected, it can be treated in time. Do not delay the time of treatment. Cause regret for life.