為您提供astigmatism英英釋意。" />

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首頁英語詞典astigmatismastigmatism英英釋意

astigmatism

英 [?'st?gm?t?z(?)m] 美[?'st?ɡm(xù)?t?z?m]
  • n. [眼科] 散光；[光][電子] 像散性；[光][電子] 像散現(xiàn)象

英英釋意

1. (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea
2. (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point