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presbyopia

American  
[prez-bee-oh-pee-uh, pres-] / ˌprɛz biˈoʊ pi ə, ˌprɛs- /

noun

Ophthalmology.
  1. farsightedness due to ciliary muscle weakness and loss of elasticity in the crystalline lens.


presbyopia British  
/ ˌprɛzbɪˈəʊpɪə, ˌprɛzbɪˈɒpɪk /

noun

  1. a progressively diminishing ability of the eye to focus, noticeable from middle to old age, caused by loss of elasticity of the crystalline lens

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Etymology

Origin of presbyopia

1785–95; < Greek presby- (combining form of présbys old, old man) + -opia

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Presbyopia, an age-related condition that makes it harder to focus on things close to you, is projected to become more common over time as the world's population ages.

From BBC • Jul. 10, 2025

Presbyopia, Rocha says, “can be the first sign of aging for people with perfect vision.”

From Washington Post • Jul. 17, 2022

Presbyopia is a deficit similar to a different type of farsightedness called hyperopia caused by an eyeball that is too short.

From Textbooks • Jun. 9, 2022

Presbyopia occurs because the image focuses behind the retina.

From Textbooks • Jun. 9, 2022

Presbyopia, pres-bi-ō′pi-a, n. long-sightedness, together with diminished power of distinguishing things near, common in old age—also Pres′byopy.—n.

From Chambers's Twentieth Century Dictionary (part 3 of 4: N-R) by Various

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