Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Inability of the eye to focus sharply on nearby objects, resulting from loss of elasticity of the crystalline lens with advancing age.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Inability of the eye, due to ageing, to focus on nearby objects; farsightedness

from the GNU version of the Collaborative International Dictionary of English

  • 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 The Century Dictionary and Cyclopedia

  • n. Diminished power of accommodation for near objects, incident to advancing years, and due to progressive loss of elasticity in the crystalline lens.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a reduced ability to focus on near objects caused by loss of elasticity of the crystalline lens after age 45

Etymologies

New Latin : Greek presbus, old man; see per1 in Indo-European roots + -opia.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From New Latin, from Ancient Greek πρέσβυς (presbys, "old man"), and New Latin -opia ("vision problem"), from Ancient Greek ὤψ (ōps, "eye"). (Wiktionary)

Examples

  • 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

  • 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

  • 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

  • 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

  • It's an all too common vision problem called presbyopia, affecting nearly everyone by the age of 50.

    CNN Transcript May 1, 2004

  • This recession of the near point with age is called presbyopia (prez'bee-oh'pee-uh; "old man's vision" G).

    The Human Brain

  • "Old sight," known as presbyopia, is a common defect of vision in advancing years.

    A Practical Physiology

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

    The Science of Human Nature A Psychology for Beginners

  • "Early Show" contributor Taryn Winter Brill reported it's often caused by a condition called presbyopia.

    Breaking News: CBS News

  • "By the time we reach our 50s and 60s, the eyes lose the ability to focus to different distances - a condition called presbyopia that's a natural part of the ageing process."

    Tonight

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.

  • Inability to see Presbyterians, despite being thumped on the forehead with a Bible.

    November 12, 2008