A child’s visual acuity of 4.6 is not necessarily considered to be myopic. There may be refractive errors such as nearsightedness, astigmatism or farsightedness, or amblyopia and other disorders, which should be investigated and diagnosed in a formal medical institution. A child’s 4.6 vision is considered abnormal, and normal vision is usually 5.0 or above. Refractive errors include astigmatism, myopia and hyperopia. In addition, amblyopia, retinopathy and hereditary fundopathy can cause abnormal vision. Therefore, a child with a visual acuity of 4.6 is not necessarily considered myopic. Parents are advised to take their children to regular hospitals for examination as soon as possible. If refractive error is diagnosed, they can wear glasses or undergo surgery to correct their vision. If the vision abnormality is caused by a disease, the primary disease needs to be treated in order to improve the vision. When your child’s vision is 4.6, you should find out the cause as soon as possible and take appropriate solutions to prevent continuous vision loss. In daily life and study, care should be taken to avoid excessive fatigue caused by prolonged use of the child’s eyes.