Handedness and macular vision: laterality of motor control underpins both.

This article pursues the corollaries of the anatomy of handedness recently discovered. Specifically, it addresses the issues concerning central vision as it relates to the command center and the circuitry of the saccades. It presents data that support the directionality of callosal traffic in motor and sensory realms even further. Evidence is presented that denotes a relationship between the anatomy sustaining movement control and that responsible for the part of the vision handled by the maculae. The evidence shows bypassing of the callosum by fibers serving the central vision. This aspect has ramifications for surgical approach to the third ventricle by callosotomy, relaxing the earlier prohibitions advocated in approaching the third ventricle via splenectomy.