The optic chiasm is a crucial structure in the brain where the optic nerves from both eyes meet and partially cross. This crossing allows visual information from the right field of vision of both eyes to be processed by the left hemisphere of the brain, while information from the left field is processed by the right hemisphere. Located at the base of the forebrain, the optic chiasm plays a vital role in binocular vision, enabling depth perception and a wider field of view. Damage to this area can lead to visual field deficits, affecting how we perceive our surroundings.