| Snellen chart |
Test chart used for assessing visual acuity. Contains rows of letters, numbers, or symbols in standardized graded sizes, with a designated distance at which each row should be legible to a normal eye. Usually tested at 20 ft.
출처: www.eyeglossary.net/
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| Snellen chart |
An eye chart used to test a patient's vision.
출처: www.eyeinstitute.co.nz/dictionary-eye-surgery.htm
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| Snellen c. |
a chart imprinted with block letters (Snellen's test type) in gradually decreasing sizes, identified according to distances at which they are ordinarily visible; used in testing visual acuity. See also Snellen's test type, under test type.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| Snellen chart, etc. |
see under chart, eye, sign, test, and test type.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| Snellen reform e. |
an artificial eye composed of two concavoconvex plates with an empty space between.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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