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ophthalmoscope

[of-thal-muh-skohp, op-] /ɒfˈθæl məˌskoʊp, ɒp-/
noun
1.
an instrument for viewing the interior of the eye or examining the retina.
Origin
1855-1860
1855-60; ophthalmo- + -scope
Related forms
ophthalmoscopic
[of-thal-muh-skop-ik, op-] /ɒfˌθæl məˈskɒp ɪk, ɒp-/ (Show IPA),
ophthalmoscopical, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for ophthalmoscope
  • The professor sat beside my desk and stared steadily at an ophthalmoscope on the wall above an exam table.
  • Your health care provider will check your vision, eye movements, and the back of the eye with an ophthalmoscope.
British Dictionary definitions for ophthalmoscope

ophthalmoscope

/ɒfˈθælməˌskəʊp/
noun
1.
an instrument for examining the interior of the eye
Derived Forms
ophthalmoscopic (ɒfˌθælməˈskɒpɪk) adjective
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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Word Origin and History for ophthalmoscope
n.

1857 in English; coined 1852 by German physician and physicist Hermann Ludwig Ferdinand von Helmholtz (1821–1894) from ophthalmo- + -scope.

Online Etymology Dictionary, © 2010 Douglas Harper
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ophthalmoscope in Medicine

ophthalmoscope oph·thal·mo·scope (ŏf-thāl'mə-skōp', ŏp-)
n.
An instrument for examining the interior structures of the eye, especially the retina, consisting essentially of a mirror that reflects light into the eye and a central hole through which the eye is examined.

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

instrument for inspecting the interior of the eye, invented in 1850 by the German physiologist Hermann von Helmholtz. The ophthalmoscope became a model for later forms of endoscopy. The device consists of a strong light that can be directed into the eye by a small mirror or prism. The light reflects off the retina and back through a small hole in the ophthalmoscope, through which the examiner sees a nonstereoscopic magnified image of the structures at the back of the eye, including the optic disk, retina, retinal blood vessels, macula, and choroid. The ophthalmoscope is particularly useful as a screening tool for various ocular diseases, such as diabetic retinopathy.

Learn more about ophthalmoscope with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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