Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Inability of the eye to focus sharply on nearby objects, resulting from loss of elasticity of the crystalline lens with advancing age.
from The Century Dictionary.
- noun Diminished power of accommodation for near objects, incident to advancing years, and due to progressive loss of elasticity in the crystalline lens.
from the GNU version of the Collaborative International Dictionary of English.
- (Med.) A defect of vision consequent upon advancing age. It is due to rigidity of the crystalline lens, which produces difficulty of accommodation and recession of the near point of vision, so that objects very near the eyes can not be seen distinctly without the use of convex glasses. Called also
presbytia .
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun
Inability of theeye , due toageing , tofocus onnearby objects ;farsightedness
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a reduced ability to focus on near objects caused by loss of elasticity of the crystalline lens after age 45
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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If you experienced 20-20 or better vision for most of your life, and now have age-related loss of vision, otherwise known as presbyopia, you wear "reading glasses."
April 2009 2009
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And when you hit 40, that inability to see near—called presbyopia—becomes a bigger problem, meaning that you may need bifocals, or different lenses for seeing close and far.
You Being Beautiful Michael F. Roizen 2008
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The inability to focus on close objects, known as presbyopia, is a natural part of aging that occurs when the lenses of the eyes become less flexible.
Health Briefs 2008
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And when you hit 40, that inability to see near—called presbyopia—becomes a bigger problem, meaning that you may need bifocals, or different lenses for seeing close and far.
You Being Beautiful Michael F. Roizen 2008
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That's because the lens of your eye becomes less flexible as you get older, leading to a condition called presbyopia or farsightedness.
Cheating Time 2007
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It's an all too common vision problem called presbyopia, affecting nearly everyone by the age of 50.
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This recession of the near point with age is called presbyopia (prez'bee-oh'pee-uh; "old man's vision" G).
The Human Brain Asimov, Isaac 1963
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"Old sight," known as presbyopia, is a common defect of vision in advancing years.
A Practical Physiology Albert F. Blaisdell
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Still another defect of vision is known as presbyopia or farsightedness due to old age.
The Science of Human Nature A Psychology for Beginners William Henry Pyle
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"Early Show" contributor Taryn Winter Brill reported it's often caused by a condition called presbyopia.
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Risk grows with age, and can speed up gradual loss of the eye’s ability to focus, called presbyopia.
Why staring at screens is making your eyeballs elongate – and how to stop it Adam Popescu 2021
bilby commented on the word presbyopia
Inability to see Presbyterians, despite being thumped on the forehead with a Bible.
November 12, 2008