| 单词 | snellen chart |
| 释义 | Snellen chart[ snĕl′ən ] n.A chart for testing visual acuity, usually consisting of letters, numbers, or pictures printed in lines of decreasing size which a patient is asked to read or identify at a fixed distance. Words nearby Snellen chartsneezewood, sneezewort, Sneffels, Snefru, snell, Snellen chart, Snellen's test types, Snellen test, Snell's law, SNF, SNG The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. |
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