Predicting Astigmatism After Cataract Surgery Using a Neural Network

M. L. Severns; M. L. Severns; V. Lakshminarayanan; P. Smith

doi:10.1364/OVO.1993.OFB.4

Ophthalmic and Visual Optics
Technical Digest Series (Optica Publishing Group, 1993),
paper OFB.4
•https://doi.org/10.1364/OVO.1993.OFB.4

Predicting Astigmatism After Cataract Surgery Using a Neural Network

M. L. Severns, V. Lakshminarayanan, and P. Smith

Ophthalmic and Visual Optics 1993

California United States
19–28 February 1993
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M. L. Severns, V. Lakshminarayanan, and P. Smith, "Predicting Astigmatism After Cataract Surgery Using a Neural Network," in Ophthalmic and Visual Optics, Technical Digest Series (Optica Publishing Group, 1993), paper OFB.4.

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Abstract

It has been known for years that there are post-operative changes in corneal curvature following cataract surgery. This is due to flattening of the corneal meridian at right angles to the incision. Usually, the incision is made above the cornea, and hence there is a post-operative flattening of the vertical meridian with resultant induced astigmatism. This is an integral element in the refractive correction of the pseudophake.

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