Optic Nerve: The optic nerve is a bundle of nerve fibers that carries visual information from the retina to the brain.
Rods: Rods are photoreceptor cells in the retina that are responsible for detecting black, white, and shades of gray. They are highly sensitive to dim light conditions.
Cones: Cones are photoreceptor cells in the retina that are responsible for color vision and visual acuity. They work best under bright light conditions.