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

Abstract:

PURPOSE:To evaluate noncorneal astigmatism after implantation of a one-piece, plate-haptic silicone or one-piece poly(methyl methacrylate) PMMA intraocular lens (IOL). SETTING:Klinik und Poliklinik für Augenheilkunde der Universität Regensburg, Germany. METHODS: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). RESULTS: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. CONCLUSIONS: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.

authors

Spiegel D,Widmann A,Köll R

doi

10.1016/s0886-3350(97)80117-4

subject

Has Abstract

pub_date

1997-11-01 00:00:00

pages

1376-9

issue

9

eissn

0886-3350

issn

1873-4502

pii

S0886-3350(97)80117-4

journal_volume

23

pub_type

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