astigmatism 是什么意思

音标：[ ə'stigmətizəm ]

中文翻译与英英解释

	n. 1.散光，乱视。 2.【物理学】散像性，散像现象。

	(optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point 同义词：astigmia,
	(ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people 同义词：astigmia,

An optical system with astigmatism is one where rays that propagate in two perpendicular planes have different foci. If an optical system with astigmatism is used to form an image of a cross, the vertical and horizontal lines will be in sharp focus at two different distances.

例句与用法

	1.	They have what is called astigmatism . 他们有所谓散光。
	2.	Under astigmatism even narrow parallel light beams will not combine into one point . 有象散存在时甚至很窄的平行光束都不能会聚在一点。
	3.	Usually , astigmatism causes blurred vision at all distances 散光往往会伴随近视远视而来。
	4.	The effect of trabeculectomy with mitomycin c on corneal astigmatism 对小梁切除术后角膜散光的影响
	5.	Maybe you fall asleep in class because of uncorrected astigmatism 也许你在课堂上睡觉是因为你的眼睛散光
	6.	Maybe you fall asleep in class because of uncorrected astigmatism 也许你在课堂上睡觉是因为你的眼睛散光。
	7.	Effect of improved incision on astigmatism after extraction of cataract 改良手术切口对白内障术后散光的影响
	8.	Mals multi astigmatism lens system 多重散光聚焦系统
	9.	Mals multi astigmatism lens system 多重散光聚焦系统
	10.	Correlation of corneal astigmatism and dynamic fitting performance of soft contact lens 水凝胶接触镜材料进展

astigmatism是什么意思

astigmatism 是什么意思

中文翻译与英英解释

例句与用法