blind spot, optic disc, optic disk(noun)
the point where the optic nerve enters the retina; not sensitive to light
The location where ganglion cell axons exit the eye to form the optic nerve.
The optic disc or optic nerve head is the location where ganglion cell axons exit the eye to form the optic nerve. There are no light sensitive rods or cones to respond to a light stimulus at this point. This causes a break in the visual field called "the blind spot" or the "physiological blind spot". The optic disc represents the beginning of the optic nerve and is the point where the axons of retinal ganglion cells come together. The optic disc is also the entry point for the major blood vessels that supply the retina. The optic nerve head in a normal human eye carries from 1 to 1.2 million neurons from the eye towards the brain.
The numerical value of optic disc in Chaldean Numerology is: 7
The numerical value of optic disc in Pythagorean Numerology is: 8
Images & Illustrations of optic disc
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