Astigmatism
01
(optics) an aberration in which rays from a single point do not converge at one focal point
专业
语法信息
例子
The lens produced astigmatism near the edge of the image.
02
(ophthalmology) a refractive error caused by an irregularly shaped cornea or lens, resulting in blurred or distorted vision
专业
例子
The optometrist detected mild astigmatism in both eyes.
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词汇树
astigmatism
astigmat
