optic disc


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

Examples of optic disc in a Sentence

Recent Examples on the Web 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. William A. Haseltine, Forbes, 15 Feb. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'optic disc.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1858, in the meaning defined above

Time Traveler
The first known use of optic disc was in 1858

Dictionary Entries Near optic disc

Cite this Entry

“Optic disc.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/optic%20disc. Accessed 18 Apr. 2024.

Medical Definition

optic disc

variants or optic disk
Last Updated: - Updated example sentences
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