A fairly prevalent vision disorder that results from an irregularly shaped cornea or lens is astigmatism, which causes hazy or distorted vision. Choosing between prescription spectacles and ...

In astigmatism, the cornea (the clear dome that covers your eye) or the lens (which focuses light rays on the light-sensitive ...

Most people are born with astigmatism. Usually, it's either because their cornea — the clear window in front of the eye — is more oval than round or their lenticular lens — is overly curved.

Pathophysiologically, astigmatism results from asymmetry, typically in the anterior cornea, but it can also be caused by the posterior cornea or lens. [1] The asymmetry means that light is focused ...