When the surface of the ____________ is irregularly curved,it is known as astigmatism.

Question

Quizplus · Accepted Answer

Astigmatism occurs when the surface of the cornea (the clear outer layer of the eye) is irregularly curved, causing blurred vision at all distances. While the lens and retina also play important roles in vision, astigmatism specifically refers to an issue with the cornea. The iris, on the other hand, controls the amount of light entering the eye but does not affect the curvature of the cornea.

When the Surface of the ____________ Is Irregularly Curved,it Is