Back to Journals » Clinical Optometry » Volume 2

Astigmatism correction in cataract surgery with Rayner toric intraocular lenses

Authors Painter S, Arun KS, Kam JK, Patel C

Published 6 September 2010 Volume 2010:2 Pages 79—84


Review by Single anonymous peer review

Peer reviewer comments 3

Download Article [PDF] 

Sally L Painter, Kikkeri S Arun, Jonathan K Kam, CK Patel

Oxford Eye Hospital, John Radcliffe Hospital, Headley Way, Headington, Oxford, United Kingdom

Background: Cataract surgery is increasingly regarded as a refractive procedure. Corneal astigmatism can be reduced by the insertion of a toric intraocular lens (T-IOL). Rayner T-flex T-IOLs are licensed for the correction of astigmatism.

In this retrospective study, 46 eyes from 34 patients, in whom T-IOLs were inserted, have been examined. Astigmatism was analyzed using power vectors.

Postoperatively, 72% had unaided vision of 6/9 or better, with 42% having <0.25 diopters (D) of residual cylinder and 78% having <1.5 D of residual cylinder, compared with 6.9% preoperatively. Once astigmatism had been converted to power vectors, J0 (measure of astigmatism with an axis of 0°) reduced in magnitude from
-0.81 D ± 0.85 to 0.09 D ± 0.42 (P < 0.001).

Rayner T-flex lenses can be reliably used to correct corneal astigmatism.

Keywords: Toric intraocular lens, cataract surgery, astigmatism

Creative Commons License This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

Download Article [PDF]