英语词汇“Snellen test”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

Snellen test

/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.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.

单词	Snellen test
释义	Snellen test /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.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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