What is astigmatism?

Astigmatism:
If your eye is shaped more like a rugby ball than a football, light rays are focused on more than one place in the eye, so you don’t have one clear image. This may make it hard to tell ‘N’ from ‘H’, for instance.
Glasses which correct this may feel strange at first, although vision with the glasses will be clear. Astigmatism often happens alongside either long- or short-sighted and glasses are used to make the focus clear.
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I am long lighted and have Astigmatism
Here’s what found out:
What is astigmatism?
Astigmatism is a refractive error in which the cornea or lens does not have a perfectly curved shape. The eye is not able to focus light evenly onto the retina, causing blurred vision. While a normal cornea is curved evenly, like a basketball, a cornea with astigmatism is curved irregularly, as a rugby ball, and requires a different level of vision correction. Astigmatism can occur in people of any age. Contact lenses to correct astigmatism require two additional powers, called the cylinder and axis.