Binocular vision

All of the muscles in each eye must be coordinated by the brain for binocular vision to function

Complex neural networks which link numerous structures. Interactions exist between these structures within each system separately, as well as between both systems. The ideal is for the best possible acuity of each eye, binocular (stereoscopic) vision, alignment of the eyes and accurate movements and saccades
Strabismus may have sensory and/or motor origins from the peripheral and/or central nervous sysyem (brain and spinal cord )

Peripheral origin is at the level of the oculomotor muscles themselves or their innervation.