V2EX astigmatic

Astigmatic

释义 Definition

astigmatic(形容词):散光的;与散光有关的。常用于描述眼睛、视力或光学系统因屈光不均而导致成像模糊、变形的情况。(也可指“散光患者的眼睛/视力”)

发音 Pronunciation

/s.tmt.k/

例句 Examples

His astigmatic vision makes small text hard to read without glasses.
他的散光视力让他不戴眼镜时很难阅读小字。

Because of an astigmatic cornea, the image focuses at different points, causing blur and distortionespecially at night.
由于角膜散光,影像会在不同位置成焦,导致模糊和变形夜间尤为明显。

词源 Etymology

来自 astigmatism(散光) 的形容词形式。**a-**(不、无)+ stigma(点、记号;这里可理解为“焦点/点状成像”)+ -ism(状态/现象),原意与“不能形成清晰单一点状成像”相关;后续加 -atic 形成形容词 astigmatic,表示“具有散光特征的”。

相关词 Related Words

文学与著作中的用例 Notable Works

  • Kanski’s Clinical Ophthalmology: A Systematic Approach(临床眼科学经典教材,常用该词描述散光相关体征与检查)
  • *AAO Basic and Clinical Science Course (BCSC)*(美国眼科学会基础与临床课程系列,屈光与角膜章节常出现该词)
  • The Merck Manual of Diagnosis and Therapy(《默克诊疗手册》,在屈光不正与视力问题条目中常使用该词)
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