Toric intraocular lenses for correction of astigmatism in keratoconus and after corneal surgery

Toric intraocular lenses for correction of astigmatism in keratoconus and after corneal surgery

To describe the results of cataract extraction with toric intraocular lens (IOL) implantation in patients with preexisting astigmatism from three corneal conditions (keratoconus, postkeratoplasty, and postpterygium surgery). Cataract patients with topographically stable, fairly regular (although som...

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Bibliographic Details
Published in:Clinical ophthalmology (Auckland, N.Z.) Vol. 10; no. Issue 1; pp. 1153 - 1159
Main Authors: Mol, Ilse Ema, Van Dooren, Bart Th
Format: Journal Article
Language:English
Published: New Zealand Dove Medical Press Limited 01-01-2016
Taylor & Francis Ltd
Dove Medical Press
Subjects:
Astigmatism
Biometrics
Cataract
Cataracts
Contact lenses
Eye surgery
Intraocular lenses
Keratoconus
Laboratories
Medical research
Medicine, Experimental
Ophthalmology
Original Research
Patients
Surgery
Topography
toric intraocular lens – phacoemulsification – corneal astigmatism – keratoconus – post-keratoplasty – post-pterygium surgery
Viscoelasticity
United States > US
Netherlands
Germany
keratoconus
postkeratoplasty
toric intraocular lens
corneal astigmatism
postpterygium surgery
phacoemulsification
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Summary:To describe the results of cataract extraction with toric intraocular lens (IOL) implantation in patients with preexisting astigmatism from three corneal conditions (keratoconus, postkeratoplasty, and postpterygium surgery). Cataract patients with topographically stable, fairly regular (although sometimes very high) corneal astigmatism underwent phacoemulsification with implantation of a toric IOL (Zeiss AT TORBI 709, Alcon Acrysof IQ toric SN6AT, AMO Tecnis ZCT). Postoperative astigmatism and refractive outcomes, as well as visual acuities, vector reduction, and complications were recorded for all eyes. This study evaluated 17 eyes of 16 patients with a mean age of 60 years at the time of surgery. Mean follow-up in this study was 12 months. The corrected distance Snellen visual acuity (with spectacles or contact lenses) 12 months postoperatively was 20/32 or better in 82% of eyes. The mean corneal astigmatism was 6.7 diopters (D) preoperatively, and 1.5 D of refractive cylinder at 1-year follow-up. No vision-compromising intra- or postoperative complications occurred and decentration or off-axis alignment of toric IOLs were not observed. Phacoemulsification with toric IOL implantation was a safe and effective procedure in the three mentioned corneal conditions. Patient selection, counseling, and IOL placement with optimal astigmatism correction are crucial.
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ISSN:1177-5467
1177-5483
1177-5483
DOI:10.2147/OPTH.S107305