Light
Visual anatomy refers to the physical structure and organization of the visual system, including the eye, optic nerve, and brain regions involved in processing visual information.
The optic nerve is a bundle of nerve fibers that carries visual information from the eye to the brain.
The retina is a layer at the back of the eye that contains specialized cells called photoreceptors which convert light into neural signals.
The occipital lobe is a region at the back of the brain responsible for processing visual information received from the eyes.