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单词 presbyopia
释义

Definition of presbyopia in English:

presbyopia

noun ˌprɛzbɪˈəʊpɪə
mass noun
  • Long-sightedness caused by loss of elasticity of the lens of the eye, occurring typically in middle and old age.

    Example sentencesExamples
    • This is another option for people with presbyopia, in which you use a lens with the reading prescription in one eye and a lens with the distance prescription in the other eye.
    • The theory is that presbyopia occurs because the lens becomes too large, not too hard but too large.
    • But he went on to explain that presbyopia is a visual problem caused by a loss of elasticity of the lens which prevents or slows down the focusing of the eye.
    • Around the age of 40, give or take, the focusing system of the eye becomes less flexible, a normal aging process called presbyopia.
    • Finally, presbyopia hits a significant number of adults in their 40s, because the eye's lens naturally loses elasticity with age, producing fuzzy near vision.
    • Most adults develop a form of far-sightedness called presbyopia as they get older.
    • A number of changes occur in the eye as you grow older, but most experts agree that a hardening of your lens causes presbyopia.
    • Although you can't prevent presbyopia, you can help protect your eyes and your vision.

Derivatives

  • presbyopic

  • adjective ˌprɛzbɪˈɒpɪk
    • If you had good, uncorrected vision before becoming presbyopic, you may be able to use nonprescription, over-the-counter reading glasses.
      Example sentencesExamples
      • I spend way too much time online, reading most of my news on a computer where my presbyopic vision is aided by bright contrast and the ability to make fonts larger.
      • Those who are farsighted and prematurely presbyopic may indeed be candidates for this procedure but not most aviators.
      • I need friendly font sizes that don't cause premature use of unattractive, presbyopic eyewear.

Origin

Late 18th century: modern Latin, from Greek presbus 'old man' + ōps, ōp- 'eye'.

 
 

Definition of presbyopia in US English:

presbyopia

noun
  • Farsightedness caused by loss of elasticity of the lens of the eye, occurring typically in middle and old age.

    Example sentencesExamples
    • This is another option for people with presbyopia, in which you use a lens with the reading prescription in one eye and a lens with the distance prescription in the other eye.
    • Finally, presbyopia hits a significant number of adults in their 40s, because the eye's lens naturally loses elasticity with age, producing fuzzy near vision.
    • The theory is that presbyopia occurs because the lens becomes too large, not too hard but too large.
    • Although you can't prevent presbyopia, you can help protect your eyes and your vision.
    • A number of changes occur in the eye as you grow older, but most experts agree that a hardening of your lens causes presbyopia.
    • But he went on to explain that presbyopia is a visual problem caused by a loss of elasticity of the lens which prevents or slows down the focusing of the eye.
    • Around the age of 40, give or take, the focusing system of the eye becomes less flexible, a normal aging process called presbyopia.
    • Most adults develop a form of far-sightedness called presbyopia as they get older.

Origin

Late 18th century: modern Latin, from Greek presbus ‘old man’ + ōps, ōp- ‘eye’.

 
 
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更新时间:2024/12/22 19:18:57