Definition of Snellen test in English:

Snellen test

Line breaks: Snel|len test
Pronunciation: /ˈsnɛlən
 
/

noun

  • An eyesight test using rows of letters printed in successively decreasing sizes (the Snellen scale) of which patients are asked to read as many as they can.
    More example sentences
    • The Snellen test for visual acuity is the test most commonly used and is based on distance vision.
    • As with the Snellen test, each eye is tested separately and then together, with and without corrective lenses.
    • The values represented here are estimates of how the child would have scored on the Snellen scale.

Origin

mid 19th century: named after Hermann Snellen (1834–1908), Dutch ophthalmologist.

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