optic disc

noun

variants or optic disk

plural optic discs or optic disks

: the small circular area at the back of the retina where the optic nerve enters the eyeball and which is devoid of rods and cones and is not sensitive to light : blind spot sense 1a

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Effectiveness of Targeted Spectroscopy A recent study on the eye has shown that ocular spectroscopy can effectively analyze different eye regions, such as the optic disc, blood vessels, retina, and macula, by identifying distinct spectral signatures. —