Many parents ask us at what age it is appropriate to have surgery for their child. There is no strict limit to the age of surgery. A comprehensive assessment of the child is needed to weigh the pros and cons of surgery, and as long as the benefits of surgery for the child outweigh the disadvantages, surgery can be considered. 1, if too early the child’s ability to cooperate with the examination is not enough, and the examination of the head position can not fully cooperate; 2, can not be too late for surgery, because the child’s visual development or a very strict time limit, more than the sensitive period of visual development, the child’s brain development and the development of the visual center may then stop; 3, nystagmus children’s vision are not too good, after the surgery, not all things are After the surgery, not everything is over, there is a corresponding training of amblyopia and the corresponding training of brain cognitive ability! Therefore, having surgery too late can be detrimental to the child’s future visual development.