astigmatism

(redirected from hypermetropic astigmatism)
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Related to hypermetropic astigmatism: myopic astigmatism, regular astigmatism
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Synonyms for astigmatism

(ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea

(optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point

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References in periodicals archive ?
The reason for the higher incidence of headache in hypermetropic astigmatism and mixed astigmatism may be that involuntary, sustained excessive accommodative efforts put the eyes under strain.
Conclusion: The frequency of myopia is approximately three times that of hypermetropia, myopic astigmatism is five times that of hypermetropic astigmatism, while mixed astigmatism is present in only 6.
33%), followed by myopic astigmatism (30%), hypermetropia (15%), hypermetropic astigmatism (5%), and mixed astigmatism in (6.
29% hypermetropic astigmatism, 6% myopia, 5% myopic astigmatism.