Sinonimi: nervus opticus | second cranial nerve | optic tract
Serves the retina; SYN. nervus opticus, second cranial nerve, optic tract.
Large nerve passing from the eye to the brain, carrying visual information. In mammals, it may contain up to a million nerve fibers, connecting the sensory cells of the retina to the optical centers in the brain. Embryologically, the optic nerve develops as an outgrowth of the brain.