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Snellen test
(redirected from Snellen chart)

    Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.01 sec.
Snellen test [′snel·ən ‚test]
(medicine)
A test for visual acuity presenting letters, numbers, or letter E's in various positions, with the symbols varying in size; if the smallest are read at a distance of 20 feet (6 meters), vision is recorded as 20/20, or normal.
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The DVLA say this corresponds to a score of between 6/9 and 6/12 on a visual test known as the Snellen chart.
Road sight tests doubt by Daily Record (Glasgow, Scotland)
Devised in 1863, the Snellen chart is shaped like a pyramid with a large "E" at the apex with smaller and smaller lines of letters below.
The Eye Chart Does More Harm Than Good by Getz, Donald J. / Special Delivery
 
 
 
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