Pertaining to the perception of sight stimuli or discernible impressions with the eyes: The visuosensory actions start in the retinas of the eyes, or the membranes at the back of the eyes, which contain light-reaction rods and cone cells in the outer layers of the retinas which distribute the different colors of light to the brain.

The rest of the visuosensory functions of the eyes are concerned with focusing light, in the right quantities, onto the retinas from which large amounts of data are sent from them via the optic nerves to the brain for analyses.