| Snellen s. |
the bruit heard with a stethoscope over the closed eye in Graves' disease; see also Graves' orbitopathy, under orbitopathy.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| Snellen t. |
block letters used in testing visual acuity, so designed that the whole letter subtends, at the appropriate distance, a visual angle usually of 5 minutes, and each component part subtends an angle of 1 minute. See also Snellen chart, under chart.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| Snellen's r. |
unilateral congestion of the ear upon stimulation of the distal end of the divided great auricular nerve; called also auriculocervical nerve r.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| Snellen's t. |
1. (for pretended blindness in one eye) the patient is requested to look at alternate red and green letters; the admittedly sound eye is covered with a red glass and if the green letters are read, evidence of fraud is present. 2. determination of visual acuity by means of Snellen's test types.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| Snellen's chart |
A chart imprinted with lines of black letters graduating in size from smallest on the bottom to largest on top; used for testing visual acuity.
출처:
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