noun Ophthalmology.

a fatigue or tiring of the eyes, usually characterized by discomfort, dimness of vision, and headache, caused by overuse of the visual organs, dysfunction of the ocular muscles, and incorrect refraction.

Origin of asthenopia

< Greek asthen(ḗs) frail (see asthenia) + -opia
Related formsas·the·nop·ic [as-thuh-nop-ik] /ˌæs θəˈnɒp ɪk/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for asthenopia

Historical Examples of asthenopia

  • Asthenopia, which occurs in children in connection with hypermetropia, is nearly always accompanied by defective vision.

  • Despite all reasons then for the supposition the asthenopia was certainly not of a muscular nature.

  • The only drawback to her perfect use of all her functions lay in asthenopia, which lasted nearly a year after she left my care.

    Fat and Blood

    S. Weir Mitchell

British Dictionary definitions for asthenopia



a technical name for eyestrain
Derived Formsasthenopic (ˌæsθɪˈnɒpɪk), adjective

Word Origin for asthenopia

C19: from New Latin, from Greek asthenēs weak (from a- 1 + sthenos strength) + ōps eye
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

asthenopia in Medicine




Related formsas′the•nopic (-nŏpĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.