ESCRS - Vector analysis investigation of toric intraocular lens with no deviation from the intended axis

Vector analysis investigation of toric intraocular lens with no deviation from the intended axis

Some residual astigmatism likely after toric IOL implantation

Patients receiving toric IOLs should expect a small amount of residual astigmatism beyond predicted values even when the implants are perfectly positioned in terms of rotation, a ne w study suggest. A vector analysis study involving 18 eyes of 16 cataract patients implanted with There was a difference of 0.29 D between the target and achieved cylinder values. The postoperative IOL meridian placement completely corresponded to that planned. The astigmatism correction index (surgically induced astigmatism/targeted induced astigmatism) was 0.95, was near the ideal value of 1. The index of success (difference vector/DV/TIA) was 0.44, which was far from the ideal value of 0.

Authors

Kawahara A, Takayanagi Y

Published

Tuesday, February 14, 2017

Source: Dovepress, Clinical Ophthalmology

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Tags

Astigmatism