PMID: 9423910Jan 10, 1998Paper

Noncorneal astigmatism related to poly(methyl methacrylate) and plate-haptic silicone intraocular lenses

Journal of Cataract and Refractive Surgery
D SpiegelR Köll

Abstract

To evaluate noncorneal astigmatism after implantation of a one-piece, plate-haptic silicone or one-piece poly(methyl methacrylate) PMMA intraocular lens (IOL). Klinik und Poliklinik für Augenheilkunde der Universität Regensburg, Germany. After a follow-up of at least 3 months, the degree of postoperative noncorneal astigmatism was calculated using the data from an auto refractometer. Sixty patients were evaluated: 30 with silicone IOLs (Group A) and 30 with PMMA lenses (Group B). Mean noncorneal astigmatism in Group A was 0.78 diopter (D) +/- 0.51 (SD), which was statistically significantly higher than that in Group B (0.51 +/- 0.27 D) (P = .013). The highest noncorneal astigmatism, 2.32 D, occurred in Group A. Based on these findings, we recommend noncorneal astigmatism be considered in eyes with a one-piece, plate-haptic silicone IOL and postoperative astigmatism. A prospective study with a standardized capsulorhexis size is needed to ascertain whether this IOL-related noncorneal astigmatism is caused by capsular shrinkage, which may then be treatable with a laser capsulotomy of the anterior capsule.

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Citations

Jul 1, 1999·Current Opinion in Ophthalmology·M J Koch, T Kohnen
Aug 6, 2013·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·David P PiñeroAlberto Artola
Sep 29, 2000·Journal of Cataract and Refractive Surgery·C Y HuJ H Jian
Feb 22, 2011·Journal of Cataract and Refractive Surgery·Jorge L AlióAntonio Uceda-Montanes

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