astigmatism

英 [ə'stɪɡmətɪzəm] 美 [ə'stɪɡmətɪzəm]

• n. 散光

英英释义

Noun:

1. (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people

2. (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point

例句

用作名词 (n.)

1. They have what is called astigmatism.
   他们有所谓散光。
2. Astigmatic dials are targets used for the detection and correction of astigmatism.
   散光盘是用于辅助检测并矫正散光的视标。

词汇搭配

• horizontal astigmatism corrector 水平象散校正器...
• inverse astigmatism 反规性散光
• physiological astigmatism 生理性散光
• hypermetropic astigmatism 远视散光
• anisotropic astigmatism 各向异性像散现象...
• irregular astigmatism 不规则像散,不规则散...
• myopic astigmatism 近视散光
• simple myopic astigmatism 单纯性近视散光...
• simple astigmatism 单纯散光
• acquired astigmatism 后天性散光
• regular astigmatism 正规散光,规则性散光...
• oblique astigmatism 斜象散
• axis of astigmatism 散光轴
• compound myopic astigmatism 复性近视散光...
• astigmatism corrector 象散校正器
• mixed astigmatism 混合散光,混合性散光...

近反义词

【近义词】

• astigmia 散光

【反义词】

• stigmatism 有小斑(状态)...