the region of the retina where the axons of the retinal ganglion cells collect prior to exiting the retina to shape the optic nerve.

OPTIC DISK: "In optic nerve hypoplasia, the optic disk is much smaller than the average individual's usually is."
Cite this page: N., Pam M.S., "OPTIC DISK," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/optic-disk/ (accessed April 19, 2021).