这个词是什么意思？
An objective determination of the refractive state of the eye (NEARSIGHTEDNESS; FARSIGHTEDNESS; ASTIGMATISM). By using a RETINOSCOPE, the amount of correction and the power of lens needed can be determined.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D042262 · MeSH 2026。
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