eye strain

eyestrain

[ahy-streyn]
noun
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:
1870–75; eye + strain

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World English Dictionary
eyestrain (ˈaɪˌstreɪn)
 
n
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 10th Edition
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American Heritage
Medical Dictionary

eyestrain eye·strain (ī'strān')
n.
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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