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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 /

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

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.

See Examples For:

Uncorrected presbyopia, not surprisingly, makes it harder for breadwinners to support their families.

From New York Times ● Apr. 4, 2024

In addition to studying techniques to help treat cataracts, the researchers are applying their methods to study other major eye conditions, including presbyopia and myopia.

From Science Daily ● Sep. 21, 2023

Eye doctors can help advise you about the many options for presbyopia.

From Washington Post ● Jul. 17, 2022

After the age of 40, many people start developing presbyopia, a medical term rooted in the Greek phrase for old eyes.

From Scientific American ● Feb. 15, 2022

Still another defect of vision is known as presbyopia or farsightedness due to old age.

From The Science of Human Nature A Psychology for Beginners by William Henry Pyle

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