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orthoscope

[ awr-thuh-skohp ]

noun

, Ophthalmology.
  1. (formerly) an instrument for examining the internal structures of the eye through a layer of water that neutralizes the refraction of the cornea.

orthoscope

/ ˈɔːθəʊˌskəʊp /

noun

  1. obsolete.
    med a 19th-century instrument for viewing the fundus of the eye through a layer of water, which eliminates distortion caused by the cornea

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Word History and Origins

Origin of orthoscope1

First recorded in 1890–95; ortho- + -scope

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