More and more parents are paying attention to their children’s early vision development, and the ophthalmology offices at our children’s hospitals are often crowded with young parents holding their little ones after the summer holidays. “Doctor, I’d like to do a comprehensive eye exam for my child.” “The baby was born prematurely, I want to see how his vision is developing?” Looking at these cute babies and those desperate parents, I felt some relief. After all, with the popularization of health care knowledge and increased awareness among the younger generation of parents, and with the development of medical technology, more and more congenital eye diseases can be diagnosed and detected at an early stage, and more and more visual disabilities can be well recovered through early intervention and treatment. We pediatric ophthalmologists have a great responsibility for early screening intervention, which must start at the age of 0. For parents, how can they prevent their children from developing early visual problems? First, for some children at risk, eye exams must be performed 3 months after birth (see the article “Which babies need early eye screening?”); children up to 3 years of age must have a comprehensive eye exam to rule out possible refractive errors, strabismus and amblyopia; preschoolers at age 7 need a high level of follow-up for visual development and refractive status changes; 8-13 years of age focus on the prevention of Second, children within 3 years of age must develop healthy living and eating habits, not too much exposure to television, computers and cell phones, not exposed to bright light, not long-term partiality and picky eating; third, if there is squinting, eye rubbing, squinting, blinking and near vision abnormalities, be sure to bring the child to the examination as soon as possible. The pediatric ophthalmologist must have a comprehensive assessment of the child’s visual examination, such as visual behavior, refractive status, fundus and retinal optic nerve examination, subjective and objective visual examination, a series of examinations and a period of follow-up are needed to give each child a visual health assessment, give each parent a reasonable health care guidance, and give each small patient an appropriate intervention and timely treatment, which is the pediatric It is the responsibility of the pediatric ophthalmologist. The visual screening devices commonly used in clinical practice are becoming more and more accurate and easier to operate and cooperate with, so we cannot tell any child to wait until they cooperate because they do not cooperate, because the critical period of visual development is within 2-3 years of age. If many diseases can be treated at this time, the child’s vision will recover and develop to the maximum.