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contentuptodate· Content· item f8_36_8783
©2013 UpToDate ® Email Astigmatism Astigmatism is due to abnormal curvature of the cornea which results in multiple focus points in front of or behind the retina. This results in blurry distance and near vision. Reproduced with permission from: the University of Michigan Kellogg Eye Center, file://www.kellogg.umich.edu.