nearsightedness

nearsighted

[neer-sahy-tid, -sahy-]
adjective
1.
seeing distinctly at a short distance only; myopic.

Origin:
1680–90; near + sight + -ed3

nearsightedly, adverb
nearsightedness, noun
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Medical Dictionary

nearsighted near·sight·ed (nēr'sī'tĭd)
adj.
Unable to see distant objects clearly; myopic.

nearsightedness near·sight·ed·ness (nēr'sī'tĭd-nĭs)
n.
Myopia.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
nearsightedness   (nîr'sī'tĭd-nĭs)  Pronunciation Key 
See myopia.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

nearsightedness

visual abnormality in which the resting eye focuses the image of a distant object at a point in front of the retina (the light-sensitive layer of tissue that lines the back and sides of the eye), resulting in a blurred image. Myopic eyes, which are usually longer than normal from front to rear, are somewhat more susceptible to retinal detachment than are normal or farsighted eyes. Severe myopia can be associated with other eye problems as well, most of which affect the retina or the choroid (i.e., pathologic blood vessel growth from the choroid).

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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