The human visual system is one of the most complex and crucial components for interaction with the surrounding world. Light enters the eye and is converted into electrical signals by the retina, which then travel through the optic nerve to the brain. A critical point in this pathway is the optic chiasm, a structure located at the base of the brain where the optic nerves from each eye meet and partially cross. A typical consequence of lesions at the optic chiasm, as well as post-chiasmatic lesions, is hemianopsia, a condition that results in the loss of a portion of the visual field.