- oxyopter
- 视度
Medical Chinese dictionary (湘雅医学词典). 2013.
oxyopter
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oxyopter — oxy·op·ter (ok″se opґtər) [oxy + Gr. optēr observer] a unit of measurement of visual acuity, being the reciprocal value of the visual angle expressed in degrees. An oxyopter (1 degree) is equivalent to 60 Snellen units (60′) … Medical dictionary
