Definitions for "OPTIC DISK"
Keywords:  retina, eyeball, nerve, blind, retinal
That portion of the optic nerve visible at the surface of the retina; also called optic nerve head.
The small area in the retina where the optic nerve enters the eye that is not sensitive to light. Also called the blind spot.
The circular area (disc) where the optic nerve connects to the retina. Also know as the optic nerve head.