astigmatism
/ә'stigmәtizm/
📖 中文释义
- n. 散光
- [化] 像散
🔗 释义中的汉语词
📘 English Definition(英文释义)
- n. (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people
- n. (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point