Question

what do you mean by astigmatism ​

Answer 1

Answer:

Explanation:

Astigmatism is a common vision condition that causes blurred vision.It occurs when cornea is irregular shaped or sometimes because of the curvature of the lens inside the eye.

Answer 2

A defect in eye or in a lens caused by a deviation from spherical curvature, which results in distorted images, as light rays are preventing from meeting at a common focus.