Many diseases cannot be detected during prenatal checkups, but a significant number can still be prevented from having serious consequences if they are checked and detected in time for early treatment after birth. So when should one go to the ophthalmologic examination? If the baby is born at full term and weighs more than 2,000 grams, he or she can be examined after birth, at full term, at six months, at one year, at three years, and at six years of age. In addition, if the child is born prematurely, weighs less than 2,000 grams, and has a history of oxygen intake, the pupils should be dilated as early as possible after birth to check the fundus of the eye, and if retinopathy of prematurity is detected, it should be closely observed under the guidance of a doctor. Preschool children attending kindergarten will have annual checkups, and kindergartens will be notified if any abnormality is found. Parents should make sure not to be too careless, thinking that as long as the parents do not have any eye disease, their children will not have any problem as a matter of course, which is a very common mistake that delays many children who could have been treated! If you are notified to go to the hospital for a review, please make sure you come as early as possible. For children who are in school, it is recommended that they go to the ophthalmology department for vision checkups as soon as they get out of school for winter and summer vacations to rule out myopia and other eye diseases.