单词：dioptres
(dioptre 的复数) [医] 屈光度
plural of dioptre
n a unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists
n a unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists