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Comparison of posterior capsule opacification between a 1-piece and a 3-piece microincision intraocular lens
  1. Ana Prinz1,2,
  2. Pia Veronika Vecsei-Marlovits1,2,
  3. Dietrich Sonderhof1,2,
  4. Paul Irsigler1,2,
  5. Oliver Findl3,
  6. Birgit Weingessel1,2
  1. 1Department of Ophthalmology, Hietzing Hospital, Vienna, Austria
  2. 2Karl Landsteiner Institute of Process Optimization and QM in Cataract Surgery, Vienna, Austria
  3. 3Department of Ophthalmology, Hanusch Hospital, Vienna, Austria
  1. Correspondence to Dr Birgit Weingessel, Department of Ophthalmology, Hietzing Hospital, Wolkersbergenstrasse 1, Wien 1130, Austria; birgit.weingessel{at}wienkav.at

Abstract

Objective To compare the intensity of posterior capsular opacification (PCO) between a 1-piece and a 3-piece microincision cataract surgery intraocular lens (MICS IOL) in a prospective randomised study.

Methods 80 eyes of 40 patients with age-related cataract were enrolled in this study. Each patient received a 1-piece MICS IOL (AF-1 NY-60, Hoya, Tokyo, Japan) in one eye and a 3-piece MICS IOL (AF-1 iMICS Y-60H, Tokyo, Hoya) in the other eye. At the 1-year follow-up, the patients were examined at the slit lamp, visual acuity was determined and standardised high-resolution digital retroillumination images were taken for objective quantification of regeneratory PCO using an automated image analysis software (AQUA).

Results The mean regeneratory PCO score (1-piece IOL: 0.2, 3-piece IOL 0.3, p=0.7) and the neodymium:yttrium-aluminium-garnet laser capsulotomy rate (two cases in 3-piece IOL group; p=0.5) were comparable low for both IOLs. Capsular folds occurred significantly more often in the 3-piece IOL group (p=0.02).

Conclusions Modification of the MICS IOL from a 3-piece to a 1-piece haptic design caused in short term no significant change in PCO amount. Compared with the 3-piece IOL, the 1-piece IOL led to significantly less capsular folds 1 year after surgery.

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