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

Identifieur interne : 008A53 ( Main/Exploration ); précédent : 008A52; suivant : 008A54

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

Auteurs : Detlev Spiegel ; Anton Widmann ; Richard Köll

Source :

Journal of Cataract & Refractive Surgery [ 0886-3350 ] ; 1997.

RBID : ISTEX:07D98E05078D0635808AE41A6FB0EA1D49499052

Descripteurs français

Pascal (Inist)
- Astigmatisme, Biomatériau, Etude comparative, Homme, Implantation, Lentille intraoculaire, Méthacrylate de méthyle polymère, Postopératoire, Siloxane polymère.
Wicri :
- topic : Biomatériau, Homme.

English descriptors

KwdEn :
- Aged, Astigmatism, Astigmatism (etiology), Astigmatism (physiopathology), Biomaterial, Comparative study, Female, Follow-Up Studies, Human, Humans, Implantation, Intraocular lens, Lenses, Intraocular (adverse effects), Male, Methyl methacrylate polymer, Polymethyl Methacrylate (adverse effects), Postoperative, Postoperative Complications (etiology), Postoperative Complications (physiopathology), Refraction, Ocular, Retrospective Studies, Silicone Elastomers (adverse effects), Siloxane polymer.
MESH :
- chemical , adverse effects : Polymethyl Methacrylate, Silicone Elastomers.
- adverse effects : Lenses, Intraocular.
- etiology : Astigmatism, Postoperative Complications.
- physiopathology : Astigmatism, Postoperative Complications.
- Aged, Female, Follow-Up Studies, Humans, Male, Refraction, Ocular, Retrospective Studies.

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 and Poliklinik fur 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.

Url:

https://api.istex.fr/document/07D98E05078D0635808AE41A6FB0EA1D49499052/fulltext/pdf

DOI: 10.1016/S0886-3350(97)80117-4

Affiliations:

Le document en format XML

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<front><div type="abstract" xml:lang="en">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 and Poliklinik fur 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.</div>
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Noncorneal astigmatism related to poly(methyl methacrylate) and plate-haptic silicone intraocular lenses

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

Source :

Descripteurs français

English descriptors

Abstract

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