astigmatism ( synonym found)
Definition of astigmatism:

°A defect of a lens such that light rays coming from a point do not meet at a focal point so that the image is blurred.
°A disorder of the vision, usually due to a misshapen cornea, such that light does not focus correctly on the retina causing a blurred image.
Definition of astigmatism:

°A defect of a lens such that light rays coming from a point do not meet at a focal point so that the image is blurred.
°A disorder of the vision, usually due to a misshapen cornea, such that light does not focus correctly on the retina causing a blurred image.
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