PMID: 9640193Jun 26, 1998Paper

Comparison of decentration and tilt between one piece and three piece polymethyl methacrylate intraocular lenses

The British Journal of Ophthalmology
K HayashiF Hayashi

Abstract

The extent of the decentration and tilt was prospectively compared between one piece polymethyl methacrylate (PMMA) and three piece PMMA intraocular lenses (IOLs) which were implanted in the capsular bag after performing continuous curvilinear capsulorhexis. 91 patients underwent a one piece PMMA IOL implantation in one eye as well as the implantation of the three piece PMMA IOL with polyvinylidene fluoride loops in the opposite eye. The length of the lens decentration and the angle of the tilt were quantitated using the anterior eye segment analysis system (EAS-1000) at 1 week as well as 1, 3, and 6 months postoperatively. The mean length of the decentration in the one piece IOL was smaller than that in the three piece IOL at 1 week (p = 0.0092), 1 month (p = 0.0044), 3 months (p = 0.0069), and 6 months (p = 0.0010) postoperatively. However, no significant difference was found in the degree of the tilt between the two types of IOLs throughout the observation periods. These results clarified that the one piece PMMA IOL with rigid PMMA haptics implanted in the capsular bag provides a better centration than the three piece PMMA IOL with flexible haptics, whereas the tilt was the same between the two types of IOLs.

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Citations

Apr 16, 2010·Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·U MesterH Kaymak
Jan 3, 2001·Journal of Cataract and Refractive Surgery·O SchwennN Pfeiffer
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Apr 30, 2002·Journal of Cataract and Refractive Surgery·Do-Hyung LeeChoun-Ki Joo
Jan 16, 2013·Journal of Cataract and Refractive Surgery·Maged M RoshdySherein S Wahba
Aug 16, 2011·Journal of Cataract and Refractive Surgery·Alja CrnejOliver Findl
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May 26, 2009·Journal of Cataract and Refractive Surgery·Timo EppigAchim Langenbucher
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