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Intraocular lens movement caused by ciliary muscle contraction

Identifieur interne : 007479 ( Main/Merge ); précédent : 007478; suivant : 007480

Intraocular lens movement caused by ciliary muscle contraction

Auteurs : Oliver Findl [Autriche] ; Barbara Kiss [Autriche] ; Vanessa Petternel [Autriche] ; Rupert Menapace [Autriche] ; Michael Georgopoulos [Autriche] ; Georg Rainer [Autriche] ; Wolfgang Drexler [Autriche]

Source :

Journal of cataract and refractive surgery [ 0886-3350 ] ; 2003.

RBID : Pascal:03-0295635

Descripteurs français

Pascal (Inist)
- Muscle ciliaire, Contraction musculaire, Profondeur, Lentille intraoculaire, Chambre postérieure, Mouvement, Pilocarpine, Etude expérimentale, Parasympathomimétique, Chambre antérieure, Homme, Accommodation, Biométrie, Postopératoire, Furane dérivé.
Wicri :
- topic : Homme, Biométrie.

English descriptors

KwdEn :
- Accommodation, Anterior chamber, Biometrics, Ciliary muscle, Depth, Experimental study, Furan derivatives, Human, Intraocular lens, Motion, Muscle contraction, Parasympathomimetic, Pilocarpine, Posterior chamber, Postoperative.

Abstract

Purpose: To investigate intraocular lens (IOL) movement, measured as a change in anterior chamber depth (ACD) caused by pilocarpine-induced ciliary muscle contraction. Setting: Department of Ophthalmology, University of Vienna, Vienna, Austria. Methods: In this prospective study, the ACD was measured using high-precision, high-resolution, dual-beam partial coherence interferometry in 62 pseudophakic eyes of 55 patients under pilocarpine- and cyclopentolate-induced ciliary muscle contraction and relaxation. The following were studied: 2 models of a ring-haptic IOL (designed to accommodate), a plate-haptic IOL, and 3 types of 3-piece lOLs. Measurements were performed 3 months after surgery. Results: The ring-haptic lOLs and plate-haptic IOL showed a forward movement (ring haptic 43A, -116 μm; ring haptic 43E, -222 μm; plate haptic -162 μm). The 3-piece lOLs showed no change in ACD except in 1 IOL type in which there was backward movement (156 μm). Conclusions: Pilocarpine-induced ciliary muscle contraction caused forward movement of ring- and plate-haptic lOLs that resulted in an estimated accommodative amplitude of less than 0.50 diopter in most cases. The accommodating ring-haptic lOLs did not perform better than the conventional plate-haptic IOL.

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Pascal:03-0295635

Le document en format XML

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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Intraocular lens movement caused by ciliary muscle contraction</title>
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<author><name sortKey="Menapace, Rupert" sort="Menapace, Rupert" uniqKey="Menapace R" first="Rupert" last="Menapace">Rupert Menapace</name>
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<author><name sortKey="Georgopoulos, Michael" sort="Georgopoulos, Michael" uniqKey="Georgopoulos M" first="Michael" last="Georgopoulos">Michael Georgopoulos</name>
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<author><name sortKey="Rainer, Georg" sort="Rainer, Georg" uniqKey="Rainer G" first="Georg" last="Rainer">Georg Rainer</name>
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</author>
<author><name sortKey="Drexler, Wolfgang" sort="Drexler, Wolfgang" uniqKey="Drexler W" first="Wolfgang" last="Drexler">Wolfgang Drexler</name>
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<series><title level="j" type="main">Journal of cataract and refractive surgery</title>
<title level="j" type="abbreviated">J. cataract refractive surg.</title>
<idno type="ISSN">0886-3350</idno>
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<seriesStmt><title level="j" type="main">Journal of cataract and refractive surgery</title>
<title level="j" type="abbreviated">J. cataract refractive surg.</title>
<idno type="ISSN">0886-3350</idno>
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</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Accommodation</term>
<term>Anterior chamber</term>
<term>Biometrics</term>
<term>Ciliary muscle</term>
<term>Depth</term>
<term>Experimental study</term>
<term>Furan derivatives</term>
<term>Human</term>
<term>Intraocular lens</term>
<term>Motion</term>
<term>Muscle contraction</term>
<term>Parasympathomimetic</term>
<term>Pilocarpine</term>
<term>Posterior chamber</term>
<term>Postoperative</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Muscle ciliaire</term>
<term>Contraction musculaire</term>
<term>Profondeur</term>
<term>Lentille intraoculaire</term>
<term>Chambre postérieure</term>
<term>Mouvement</term>
<term>Pilocarpine</term>
<term>Etude expérimentale</term>
<term>Parasympathomimétique</term>
<term>Chambre antérieure</term>
<term>Homme</term>
<term>Accommodation</term>
<term>Biométrie</term>
<term>Postopératoire</term>
<term>Furane dérivé</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Homme</term>
<term>Biométrie</term>
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</teiHeader>
<front><div type="abstract" xml:lang="en">Purpose: To investigate intraocular lens (IOL) movement, measured as a change in anterior chamber depth (ACD) caused by pilocarpine-induced ciliary muscle contraction. Setting: Department of Ophthalmology, University of Vienna, Vienna, Austria. Methods: In this prospective study, the ACD was measured using high-precision, high-resolution, dual-beam partial coherence interferometry in 62 pseudophakic eyes of 55 patients under pilocarpine- and cyclopentolate-induced ciliary muscle contraction and relaxation. The following were studied: 2 models of a ring-haptic IOL (designed to accommodate), a plate-haptic IOL, and 3 types of 3-piece lOLs. Measurements were performed 3 months after surgery. Results: The ring-haptic lOLs and plate-haptic IOL showed a forward movement (ring haptic 43A, -116 μm; ring haptic 43E, -222 μm; plate haptic -162 μm). The 3-piece lOLs showed no change in ACD except in 1 IOL type in which there was backward movement (156 μm). Conclusions: Pilocarpine-induced ciliary muscle contraction caused forward movement of ring- and plate-haptic lOLs that resulted in an estimated accommodative amplitude of less than 0.50 diopter in most cases. The accommodating ring-haptic lOLs did not perform better than the conventional plate-haptic IOL.</div>
</front>
</TEI>
<affiliations><list><country><li>Autriche</li>
</country>
<region><li>Vienne (Autriche)</li>
</region>
<settlement><li>Vienne (Autriche)</li>
</settlement>
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<tree><country name="Autriche"><region name="Vienne (Autriche)"><name sortKey="Findl, Oliver" sort="Findl, Oliver" uniqKey="Findl O" first="Oliver" last="Findl">Oliver Findl</name>
</region>
<name sortKey="Drexler, Wolfgang" sort="Drexler, Wolfgang" uniqKey="Drexler W" first="Wolfgang" last="Drexler">Wolfgang Drexler</name>
<name sortKey="Georgopoulos, Michael" sort="Georgopoulos, Michael" uniqKey="Georgopoulos M" first="Michael" last="Georgopoulos">Michael Georgopoulos</name>
<name sortKey="Kiss, Barbara" sort="Kiss, Barbara" uniqKey="Kiss B" first="Barbara" last="Kiss">Barbara Kiss</name>
<name sortKey="Menapace, Rupert" sort="Menapace, Rupert" uniqKey="Menapace R" first="Rupert" last="Menapace">Rupert Menapace</name>
<name sortKey="Petternel, Vanessa" sort="Petternel, Vanessa" uniqKey="Petternel V" first="Vanessa" last="Petternel">Vanessa Petternel</name>
<name sortKey="Rainer, Georg" sort="Rainer, Georg" uniqKey="Rainer G" first="Georg" last="Rainer">Georg Rainer</name>
</country>
</tree>
</affiliations>
</record>

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Intraocular lens movement caused by ciliary muscle contraction

Intraocular lens movement caused by ciliary muscle contraction

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri