astigmatism

1. 1.

   A defect of a lens such that light rays coming from a point do not meet at a focal point so that the image is blurred.

   散光(透镜的缺陷,使光线不能聚焦于一点导致图像模糊)

2. 2.

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

   (眼科学)通常由于角膜形状不规则导致的视力障碍；常见于近视者

3. 3.

   A disorder of the vision, usually due to a misshapen cornea, such that light does not focus correctly on the retina causing a blurred image.

   散光(视力障碍,通常因角膜形状异常导致视网膜成像模糊)

4. 4.

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

   (光学)光学系统的缺陷,导致来自单一点的光线无法汇聚于单一焦点

(眼科学)通常由于角膜形状不规则导致的视力障碍；常见于近视者；散光(视力障碍,通常因角膜形状异常导致视网膜成像模糊)；(光学)光学系统的缺陷,导致来自单一点的光线无法汇聚于单一焦点；散光；[化] 像散

Connections

Learner notes