optic disc

noun

a small oval-shaped area on the retina marking the site of entrance into the eyeball of the optic nerve See blind spot

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The optic disc appeared somewhat cloudy, with very evident venous pulsation.

The optic disc becomes deeply cupped and the tissues of the optic disc and optic nerve extremely atrophied.

The optic disc was much atrophied, the calibre of the arteries diminished and the veins full (Mr. Critchett).

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