NCIt definition : A continuation of the optic nerves just dorsal to the optic chiasm, formed by temporal
fibers of the ipsilateral optic nerve and nasal fibers of the contralateral optic
nerve, that carries axons to nuclei within the thalamus and relays visual information
to the primary visual cortex of the occipital lobe.;
Alternative definition : NCI-GLOSS: The nerves that travel from the optic chiasm (place in the brain where
some of the optic nerve fibers cross) into certain parts of the brain involved in
vision.;