the second cranial nerve, that transports the axons of retinal ganglion cells and continues from the retina on to the optic chiasm. Commonly referred to as cranial nerve II.

OPTIC NERVE: "The optic nerve may be absent all together in cases of optic nerve hypoplasia."
Cite this page: N., Pam M.S., "OPTIC NERVE," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/optic-nerve/ (accessed September 17, 2021).