astigmatism
noun(astig-ma-tism)
a defect of an optical system (such as a lens) causing rays from a point to fail to meet in a focal point resulting in a blurred and imperfect image
astigmatism
noun(astig-ma-tism)
a defect of vision due to astigmatism of the refractive system of the eye and especially to corneal irregularity
astigmatism
noun(astig-ma-tism)
distorted understanding suggestive of the blurred vision of an astigmatic person