The coordinated movement of both eyes is controlled by the central cerebral cortex. When the central control is dysfunctional, the extraocular muscles become unbalanced and the oculomotor system is in a state of confusion, resulting in the inability of both eyes to look at an object at the same time and the separation of the two eyes: one eye looks at the target and the other eye deviates from the target, which is called strabismus. Strabismus can severely inhibit the visual function of the strabismic eye (especially during the visual development of children), leading to amblyopia and loss of stereopsis, as well as hindering aesthetics and even affecting the psychological development of children.