orthoscope

[ awr-thuh-skohp ]
/ ˈɔr θəˌskoʊp /

noun Ophthalmology.

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

Origin of orthoscope

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

British Dictionary definitions for orthoscope

orthoscope
/ (ˈɔːθəʊˌskəʊp) /

noun

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

Medical definitions for orthoscope

orthoscope
[ ôrthə-skōp′ ]

n.

An instrument used to examine the eye that eliminates corneal refraction by means of a layer of water.