\ ˈskler-ə How to pronounce sclera (audio) \

Definition of sclera

: the dense fibrous opaque white outer coat enclosing the eyeball except the part covered by the cornea — see eye illustration

Other Words from sclera

scleral \ ˈskler-​əl How to pronounce sclera (audio) \ adjective

Examples of sclera in a Sentence

Recent Examples on the Web These initial symptoms were followed by jaundice, with the skin turning yellow, and then the sclera, or white, of the eyes subsequently turning yellow. Arielle Mitropoulos, ABC News, 28 Apr. 2022 Atop each white sclera is a neon green iris with a black pupil in the middle. Marci Robin, Allure, 28 Apr. 2022 The team also discovered that one of the astronauts developed folds in the choroid, the layer of blood vessels and tissue between the retina and the sclera. Jennifer Leman, Popular Mechanics, 3 Mar. 2022 The area that surrounds the iris—called the sclera—is tinted in most animals but bright white in humans. Popular Science, 9 June 2020 The high contrast provided by humans’ white scleras enhances our awareness of one another’s gazes. Rafil Kroll-zaidi, Harper's Magazine, 27 Apr. 2020 In all of Wilton’s cavalcade of wonders, to my mind, no product can compete with its selection of decorative edible eyeballs: flat, white sclera of sugar marked with black to represent pupils, lids, and lashes. Helen Rosner, The New Yorker, 12 Dec. 2019 However, one year after stopping minocycline, doctors did not see much improvement in the man's sclera discoloration, the report said. Rachael Rettner, Fox News, 19 Apr. 2018 Scleral tattooing consists of injecting pigment into the sclera, or white, part of the human eye with a needle. Shari Rudavsky, Indianapolis Star, 8 Jan. 2018 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sclera.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of sclera

1888, in the meaning defined above

History and Etymology for sclera

New Latin, from Greek sklēros

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Last Updated

2 May 2022

Cite this Entry

“Sclera.” Dictionary, Merriam-Webster, Accessed 21 May. 2022.

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More Definitions for sclera


\ ˈskler-ə How to pronounce sclera (audio) \

Medical Definition of sclera

: the dense fibrous opaque white outer coat enclosing the eyeball except the part covered by the cornea

called also sclerotic, sclerotic coat

More from Merriam-Webster on sclera Encyclopedia article about sclera


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