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[ahy-streyn] /ˈaɪˌstreɪn/
a sensation of discomfort produced in the eyes by their excessive or improper use:
to have eyestrain from reading fine print in poor light.
Origin of eyestrain
First recorded in 1870-75; eye + strain1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for eyestrain
Historical Examples
  • Then eyestrain and headache and a touch of fever followed, and I cast about for means to ameliorate my bodily ills.

    Jungle Peace William Beebe
  • He, therefore, constantly tries to improve it by changing the tension of his ciliary muscles, and so brings on eyestrain.

    Physiology Ernest G. Martin
  • In spite of almost constant illness brought about by eyestrain, he accomplished more than most well men have done.

    A Civic Biology George William Hunter
British Dictionary definitions for eyestrain


fatigue or irritation of the eyes, resulting from excessive use, as from prolonged reading of small print, or uncorrected defects of vision
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
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eyestrain in Medicine

eyestrain eye·strain (ī'strān')
Pain and fatigue of the eyes, often accompanied by headache, due to prolonged use of the eyes, uncorrected defects of vision, or an imbalance of the eye muscles. Also called asthenopia.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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