| astigmatism |
Astigmatism means that the cornea is not spherical, or round, but rather has a different curvature at different points on the cornea. Think of an eye being shaped like a football, with the greatest, or steepest, amount of corneal curvature across the laces and the lesser, or flatter, corneal curvature across the end-to-end portion of the football. A normal eye is shaped like a basketball.
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