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retinoscope

American  
[ret-n-uh-skohp] / ˈrɛt n əˌskoʊp /

noun

Ophthalmology.

  1. an apparatus that determines the refractive power of the eye by observing the lights and shadows on the pupil when a mirror illumines the retina; skiascope.

Etymology

Origin of retinoscope

retin(a) + -o- + -scope

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

There the child is given a thorough and accurate examination, the eyes being first dilated with homatropin and the error of refraction determined by means of the retinoscope.

From Health Work in the Public Schools by Ayres, Leonard Porter

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.