If a child has both nystagmus and strabismus, how should the surgical arrangement for nystagmus combined with strabismus be chosen: 1. From the point of view of the timing of surgery requires early surgical treatment 2 From the point of view of surgical design: to perform surgery for nystagmus combined with strabismus correction surgery, the general principle is to perform nystagmus surgery on the dominant eye and strabismus correction surgery on the non-dominant eye 3. From the point of view of nystagmus, and strabismus, there is no problem with combined surgery if there is no head position. But if both cannot be combined, the strabismus needs to be addressed first, followed by nystagmus treatment! ~