astigmatism explain
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ASTIGMATISM
A common imperfection in the eye's curvature.
With astigmatism, the front surface of the eye or the lens inside the eye is curved differently in one direction than the other.
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hlo.......
Astigmatism is a common vision condition that causes blurred vision. It occurs when the cornea (the clear front cover of the eye) is irregularly shaped or sometimes because of the curvature of the lens inside the eye. ... As a result, vision becomes blurred at any distance. This can lead to eye discomfort and headaches.
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