• Retina:  neural tissue lining the inside back surface of the eye which absorbs light, processes images, and sends information to the brain • Optic disk: where the optic nerve leaves the eye/ blind spot • Receptor cells: – Rods: black and white/low light vision – Cones: color and daylight vision • Adaptation: becoming more or less sensitive to light as needed • Information processing in they eye: – Receptive fields