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Ultrasound biomicroscopy of the Artisan phakic intraocular lens in hyperopic eyes

Identifieur interne : 007313 ( Main/Exploration ); précédent : 007312; suivant : 007314

Ultrasound biomicroscopy of the Artisan phakic intraocular lens in hyperopic eyes

Auteurs : Mihai Pop [Canada] ; Yves Payette [Canada] ; Magdi Mansour [Canada]

Source :

Journal of cataract and refractive surgery [ 0886-3350 ] ; 2002.

RBID : Pascal:02-0565234

Descripteurs français

Pascal (Inist)
- Position, Intraoculaire, Hypermétropie, Chambre antérieure, Traitement, Ultrason, Biomicroscopie, Lentille intraoculaire, Fixation, Homme.
Wicri :
- topic : Homme.

English descriptors

KwdEn :
- Anterior Chamber (ultrasonography), Anterior chamber, Biomicroscopy, Fixation, Human, Humans, Hypermetropia, Hyperopia (surgery), Hyperopia (ultrasonography), Intraocular, Intraocular Pressure, Intraocular lens, Lens Implantation, Intraocular, Lens, Crystalline, Lenses, Intraocular, Position, Prosthesis Design, Treatment, Ultrasound.
MESH :
- surgery : Hyperopia.
- ultrasonography : Anterior Chamber, Hyperopia.
- Humans, Intraocular Pressure, Lens Implantation, Intraocular, Lens, Crystalline, Lenses, Intraocular, Prosthesis Design.

Abstract

Purpose: To study in situ the intraocular position of the Artisan iris-claw intraocular lens (IOL) (model 203) (Ophtec) in phakic hyperopic eyes using ultrasound biomicroscopy (UBM). Methods: Echograms of the anterior chamber were taken preoperatively and 24 to 317 days postoperatively in 4 eyes implanted with the Artisan IOL (power +4.0 to +6.0 diopters). The preoperative anterior chamber depth (ACD) and the postoperative distance between the IOL and the corneal endothelium (endothelium-optic distance) and between the IOL and the lens were measured. The echograms were assessed for the effect of the IOL on iris tissue. Results: The preoperative ACD ranged from 3.10 to 3.56 mm and the postoperative endothelium-optic distance, from 2.03 to 2.54 mm. The distance between the lens and the posterior surface of the IOL ranged from 0.35 to 0.79 mm. Several UBM echograms showed indentation of iris tissue by the IOL haptics and optic edge, although no pigmentary dispersion was noted. Conclusions: Adequate space was maintained between the Artisan hyperopic IOL and the corneal endothelium, angle, and crystalline lens. Haptic indentation of the iris, which could lead to pigment erosion, was observed. Preoperative gonioscopy and maintenance of normal intraocular pressure postoperatively suggest the indentation was secondary to inadequate lens vaulting relative to the high natural arch of the iris in hyperopic eyes. Shortening the haptics or increasing the lens vault might resolve this problem.

Affiliations:

Le document en format XML

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<term>Hyperopia (ultrasonography)</term>
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<term>Lens, Crystalline</term>
<term>Lenses, Intraocular</term>
<term>Position</term>
<term>Prosthesis Design</term>
<term>Treatment</term>
<term>Ultrasound</term>
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<keywords scheme="MESH" qualifier="ultrasonography" xml:lang="en"><term>Anterior Chamber</term>
<term>Hyperopia</term>
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<term>Intraocular Pressure</term>
<term>Lens Implantation, Intraocular</term>
<term>Lens, Crystalline</term>
<term>Lenses, Intraocular</term>
<term>Prosthesis Design</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Position</term>
<term>Intraoculaire</term>
<term>Hypermétropie</term>
<term>Chambre antérieure</term>
<term>Traitement</term>
<term>Ultrason</term>
<term>Biomicroscopie</term>
<term>Lentille intraoculaire</term>
<term>Fixation</term>
<term>Homme</term>
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<front><div type="abstract" xml:lang="en">Purpose: To study in situ the intraocular position of the Artisan iris-claw intraocular lens (IOL) (model 203) (Ophtec) in phakic hyperopic eyes using ultrasound biomicroscopy (UBM). Methods: Echograms of the anterior chamber were taken preoperatively and 24 to 317 days postoperatively in 4 eyes implanted with the Artisan IOL (power +4.0 to +6.0 diopters). The preoperative anterior chamber depth (ACD) and the postoperative distance between the IOL and the corneal endothelium (endothelium-optic distance) and between the IOL and the lens were measured. The echograms were assessed for the effect of the IOL on iris tissue. Results: The preoperative ACD ranged from 3.10 to 3.56 mm and the postoperative endothelium-optic distance, from 2.03 to 2.54 mm. The distance between the lens and the posterior surface of the IOL ranged from 0.35 to 0.79 mm. Several UBM echograms showed indentation of iris tissue by the IOL haptics and optic edge, although no pigmentary dispersion was noted. Conclusions: Adequate space was maintained between the Artisan hyperopic IOL and the corneal endothelium, angle, and crystalline lens. Haptic indentation of the iris, which could lead to pigment erosion, was observed. Preoperative gonioscopy and maintenance of normal intraocular pressure postoperatively suggest the indentation was secondary to inadequate lens vaulting relative to the high natural arch of the iris in hyperopic eyes. Shortening the haptics or increasing the lens vault might resolve this problem.</div>
</front>
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<tree><country name="Canada"><region name="Québec"><name sortKey="Pop, Mihai" sort="Pop, Mihai" uniqKey="Pop M" first="Mihai" last="Pop">Mihai Pop</name>
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<name sortKey="Mansour, Magdi" sort="Mansour, Magdi" uniqKey="Mansour M" first="Magdi" last="Mansour">Magdi Mansour</name>
<name sortKey="Payette, Yves" sort="Payette, Yves" uniqKey="Payette Y" first="Yves" last="Payette">Yves Payette</name>
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</record>

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Serveur d'exploration sur les dispositifs haptiques

Ultrasound biomicroscopy of the Artisan phakic intraocular lens in hyperopic eyes

Ultrasound biomicroscopy of the Artisan phakic intraocular lens in hyperopic eyes

Source :

Descripteurs français

English descriptors

Abstract

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

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

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