astigmatism

(redirected from lenticular astigmatism)
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Related to lenticular astigmatism: corneal 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 ?
Toroidal RGPs are useful when there is lenticular astigmatism present, or when there is a high degree of corneal astigmatism.
a The corneal and lenticular astigmatism are similar in magnitude, but opposite in direction
This lenticular astigmatism becomes known as residual astigmatism Induced astigmatism Induced astigmatism is created when a toric back surface is placed on a toric cornea.
An assumption that can be made here is that: Total ocular astigmatism = corneal astigmatism + lenticular astigmatism.
Toroidal RGP's are useful when there is lenticular astigmatism present, or when there is a high degree of corneal astigmatism.