Pilocarpine-induced shift of an accommodating intraocular lens : AT-45 Crystalens
Identifieur interne : 006913 ( Main/Merge ); précédent : 006912; suivant : 006914Pilocarpine-induced shift of an accommodating intraocular lens : AT-45 Crystalens
Auteurs : Christina Koeppl [Autriche] ; Oliver Findl [Autriche] ; Rupert Menapace [Autriche] ; Katharina Kriechbaum [Autriche] ; Matthias Wirtitsch [Autriche] ; Wolf Buehl [Autriche] ; Stefan Sacu [Autriche] ; Wolfgang Drexler [Autriche]Source :
- Journal of cataract and refractive surgery [ 0886-3350 ] ; 2005.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Chirurgie.
English descriptors
Abstract
Purpose: To measure the shift of an accommodating plate-haptic intraocular lens (IOL) along the visual axis induced by ciliary muscle contraction after application of pilocarpine. Setting: Department of Ophthalmology, Medical University of Vienna, Vienna, Austria. Methods: Fifty-four eyes of 28 patients with age-related cataract comprised this prospective study. Each patient received an AT-45 silicone accommodating IOL (Crystalens, Eyeonics Corp.) after standardized cataract surgery. In a subgroup of 24 eyes, capsular bag fibrosis was reduced by extensive polishing of the anterior capsule with a slit cannula. Assessment included measurements of anterior chamber depth, assessed with partial coherence interferometry, before and after application of pilocarpine 2% and evaluation of near visual acuity 1 month and 3 months postoperatively. Results: A slight backward shift of the IOL of 151 μm in the nonpolished group (P<.001) and 122 μm in the polished group (P<.005) could be detected after application of pilocarpine. Polishing the capsule did not influence IOL shift. The median near visual acuity with distance correction 1 month and 3 months postoperatively was J5 and J4, respectively, in the nonpolished group and J6 at both times in the polished group. Conclusions: Pilocarpine induced a counterproductive active backward shift of the AT-45 IOL. Polishing of the capsular bag had no impact on accommodative ability. The reading performance of patients with the AT-45 IOL patients at 1 and 3 months was not significantly different from that of with a standard IOL under similar testing methods.
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<series><title level="j" type="main">Journal of cataract and refractive surgery</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Antiglaucomatous agent</term>
<term>Intraocular lens</term>
<term>Ophthalmology</term>
<term>Pilocarpine</term>
<term>Surgery</term>
<term>Treatment</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Pilocarpine</term>
<term>Lentille intraoculaire</term>
<term>Chirurgie</term>
<term>Ophtalmologie</term>
<term>Antiglaucomateux</term>
<term>Traitement</term>
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<front><div type="abstract" xml:lang="en">Purpose: To measure the shift of an accommodating plate-haptic intraocular lens (IOL) along the visual axis induced by ciliary muscle contraction after application of pilocarpine. Setting: Department of Ophthalmology, Medical University of Vienna, Vienna, Austria. Methods: Fifty-four eyes of 28 patients with age-related cataract comprised this prospective study. Each patient received an AT-45 silicone accommodating IOL (Crystalens, Eyeonics Corp.) after standardized cataract surgery. In a subgroup of 24 eyes, capsular bag fibrosis was reduced by extensive polishing of the anterior capsule with a slit cannula. Assessment included measurements of anterior chamber depth, assessed with partial coherence interferometry, before and after application of pilocarpine 2% and evaluation of near visual acuity 1 month and 3 months postoperatively. Results: A slight backward shift of the IOL of 151 μm in the nonpolished group (P<.001) and 122 μm in the polished group (P<.005) could be detected after application of pilocarpine. Polishing the capsule did not influence IOL shift. The median near visual acuity with distance correction 1 month and 3 months postoperatively was J5 and J4, respectively, in the nonpolished group and J6 at both times in the polished group. Conclusions: Pilocarpine induced a counterproductive active backward shift of the AT-45 IOL. Polishing of the capsular bag had no impact on accommodative ability. The reading performance of patients with the AT-45 IOL patients at 1 and 3 months was not significantly different from that of with a standard IOL under similar testing methods.</div>
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<affiliations><list><country><li>Autriche</li>
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<name sortKey="Buehl, Wolf" sort="Buehl, Wolf" uniqKey="Buehl W" first="Wolf" last="Buehl">Wolf Buehl</name>
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<name sortKey="Sacu, Stefan" sort="Sacu, Stefan" uniqKey="Sacu S" first="Stefan" last="Sacu">Stefan Sacu</name>
<name sortKey="Wirtitsch, Matthias" sort="Wirtitsch, Matthias" uniqKey="Wirtitsch M" first="Matthias" last="Wirtitsch">Matthias Wirtitsch</name>
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