Dictionary
astigmatism
noun astig·ma·tism \ə-ˈstig-mə-ˌti-zəm\
medical : a problem with the eye that prevents a person from seeing clearly
Full Definition of ASTIGMATISM
1
: a defect of an optical system (as a lens) causing rays from a point to fail to meet in a focal point resulting in a blurred and imperfect image
2
: a defect of vision due to astigmatism of the refractive system of the eye and especially to corneal irregularity
3
: distorted understanding suggestive of the blurred vision of an astigmatic person
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First Known Use of ASTIGMATISM
1846
Rhymes with ASTIGMATISM
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Medical Dictionary
astigmatism
noun astig·ma·tism \ə-ˈstig-mə-ˌtiz-əm\
Medical Definition of ASTIGMATISM
1
: a defect of an optical system (as a lens) causing rays from a point to fail to meet in a focal point resulting in a blurred and imperfect image
2
: a defect of vision due to astigmatism of the refractive system of the eye and especially to corneal irregularity—compare emmetropia, myopia
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