The size of a child’s eyes is primarily related to genetic factors, so there is no clinical evidence that what a child eats will make his or her eyes bigger. There is no relevant medical literature showing that the size of a child’s eyes is related to the food he or she eats, so there is no such thing as what food a child eats to make his or her eyes bigger. The size of a child’s eyes is generally affected by genetic factors, it is recommended that the child’s daily life as much as possible to maintain a balanced intake of nutrients, consume more fresh fruits and vegetables, adequate nutrition in order to promote better development of the child’s eyes. Generally speaking, if both parents have big eyes, the chances of their children having big eyes will be relatively high; if both parents have small eyes, the chances of their children having big eyes will be relatively low. Therefore, we should treat children’s diet scientifically and not blindly believe in some unfounded claims. The child’s nutritional balance should be maintained in order to help the child’s eyes develop healthily. It is recommended that children with ocular discomfort should seek medical attention to assess their condition and follow the doctor’s instructions for treatment.