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Intraocular lens-edge design and material factors contributing to posterior-capsulotomy rates: comparing Hoya FY60AD, PY60AD, and AcrySof SN60WF

Authors Morgan-Warren PJ, Smith JMA

Received 22 May 2013

Accepted for publication 27 June 2013

Published 22 August 2013 Volume 2013:7 Pages 1661—1667

DOI https://doi.org/10.2147/OPTH.S48824

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Peter J Morgan-Warren, JM Alaric Smith

Victoria Eye Unit, Hereford County Hospital, Hereford, UK

Purpose: To compare neodymium-doped yttrium aluminum garnet laser posterior capsulotomy (LPC) rates between the Hoya FY60AD, Hoya PY60AD, and Alcon AcrySof SN60WF intraocular lenses (IOLs) after routine cataract surgery.
Methods: In this retrospective comparative study, patients undergoing uncomplicated cataract surgery over a 3-year period were included, and those subsequently undergoing LPC were identified from laser clinic records. LPC rates at 2 years postoperatively were compared between the round-edged Hoya FY60AD , the newer sharp-edged Hoya PY60AD three-piece IOLs, and the one-piece AcrySof SN60WF IOL.
Results: A total of 1,265 cataract operations were included, and 49 eyes (3.9%) underwent LPC within 2 years of surgery. Twenty-eight of 315 eyes (8.9%) implanted with the FY60AD underwent LPC by 2 years, compared to eleven of 254 (4.3%) with the newer sharp square-edged PY60AD and ten of 696 (1.4%) with the one-piece SN60WF (P < 0.05, Chi-squared analyses).
Conclusions: The newer, sharper-edged Hoya PY60AD IOL has a lower LPC rate than the Hoya FY60AD IOL at 2 years post-cataract surgery. The one-piece AcrySof SN60WF has a lower LPC rate than both the three-piece Hoya IOLs in the same time period postoperatively. Variations in IOL-edge design and material effect may have contributed to the different rates observed.

Keywords: intraocular lenses, Nd:YAG laser capsulotomy, posterior-capsule opacification

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