HapticV1, Main, Exploration, bibRecordById, Pascal:99-0333647

Update on fixation of rigid and foldable posterior chamber intraocular lenses. part I

Identifieur interne : 008107 ( Main/Exploration ); précédent : 008106; suivant : 008108

Update on fixation of rigid and foldable posterior chamber intraocular lenses. part I

Auteurs : Jagat Ram [Inde] ; David J. Apple [États-Unis] ; Qun Peng [États-Unis] ; Nithi Visessook [États-Unis] ; Gerd U. Auffarth [Allemagne] ; Robert J. Schoderbek Jr [États-Unis] ; Edgar L. Ready [États-Unis]

Source :

Ophthalmology [ 0161-6420 ] ; 1999.

RBID : ISTEX:81DFF50091085898E8CBC56E824C6F7F511298FD

Descripteurs français

Pascal (Inist)
- Biomatériau, Capsule, Chambre postérieure, Complication, Conception, Déplacement, Etude comparative, Fixation, Homme, Implantation, Lentille intraoculaire, Opacification, Postopératoire, Postérieur, Technique.
Wicri :
- topic : Biomatériau, Homme.

English descriptors

KwdEn :
- Acrylic Resins, Aged, Biomaterial, Capsule, Cataract (prevention & control), Comparative study, Complication, Design, Displacement, Fixation, Foreign-Body Migration (etiology), Foreign-Body Migration (prevention & control), Human, Humans, Implantation, Intraocular lens, Lens Capsule, Crystalline, Lens Implantation, Intraocular (methods), Lenses, Intraocular, Minimally Invasive Surgical Procedures, Opacification, Polymethyl Methacrylate, Posterior, Posterior chamber, Postoperative, Prospective Studies, Prosthesis Design, Silicone Elastomers, Suture Techniques, Suture Techniques (adverse effects), Technique, Vision Disorders (rehabilitation), Visual Acuity.
MESH :
- chemical : Acrylic Resins, Polymethyl Methacrylate, Silicone Elastomers.
- adverse effects : Suture Techniques.
- etiology : Foreign-Body Migration.
- methods : Lens Implantation, Intraocular.
- prevention & control : Cataract, Foreign-Body Migration.
- rehabilitation : Vision Disorders.
- Aged, Humans, Lens Capsule, Crystalline, Lenses, Intraocular, Minimally Invasive Surgical Procedures, Prospective Studies, Prosthesis Design, Suture Techniques, Visual Acuity.

Abstract

Purpose Realizing that precise posterior chamber intraocular lens (PC-IOL) centration is needed to consistently achieve good optical results and visual rehabilitation after modern cataract surgery, the authors assessed the status and success rate of lens haptic fixation and its correlation with lens optic centration-decentration in a large series of eyes with PC-IOLs obtained postmortem.Design Prospective analysis of pseudophakic eyes obtained postmortem.Participants A total of 3493 human eyes obtained postmortem, the largest database of such specimens available to date.Methods Miyake-Apple posterior photographic technique.Main outcome measures The amount of decentration of rigid PC-IOLs and small-incision foldable PC-IOLs was analyzed, and the results were correlated with the type of fixation that had been achieved in each case.Results Determination of mean values revealed that capsular bag fixation was achieved in 52.05% of eyes, asymmetric bag-sulcus fixation in 34.21% of eyes, and sulcus-sulcus fixation in 13.74% of eyes. Asymmetrically fixed lenses consistently showed significant decentration. During the past 5 years (1993–98), the overall rate of in-the-bag fixation increased to 59.2%; by 1998 it had increased to 64%. Most significantly, success in achieving bag-bag fixation of foldable IOLs implanted in association with modern capsular surgery with small incisions has surged to 90% over the past 4 years.Conclusions The authors found a direct correlation of decentration in eyes with asymmetric fixation, and the results underscore the need for careful in-the-bag haptic placement. Although few surgeons today would dispute the goal to implanting haptics in the capsular bag, these findings show that the overall success rate over the years has, while improving, remained surprisingly low. The overall success rate of about 60% seen with all lens designs is probably as good as can be expected with classic large-incision extracapsular techniques. However, and most important and encouraging, the success rate of haptic fixation in cases with foldable lenses has improved dramatically during the past 4 years (up to the 90% range). This coincides with the present emphasis on modern capsular surgery and small-incision techniques used to insert these lenses.

Url:

DOI: 10.1016/S0161-6420(99)00505-9

Affiliations:

Le document en format XML

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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acrylic Resins</term>
<term>Aged</term>
<term>Biomaterial</term>
<term>Capsule</term>
<term>Cataract (prevention & control)</term>
<term>Comparative study</term>
<term>Complication</term>
<term>Design</term>
<term>Displacement</term>
<term>Fixation</term>
<term>Foreign-Body Migration (etiology)</term>
<term>Foreign-Body Migration (prevention & control)</term>
<term>Human</term>
<term>Humans</term>
<term>Implantation</term>
<term>Intraocular lens</term>
<term>Lens Capsule, Crystalline</term>
<term>Lens Implantation, Intraocular (methods)</term>
<term>Lenses, Intraocular</term>
<term>Minimally Invasive Surgical Procedures</term>
<term>Opacification</term>
<term>Polymethyl Methacrylate</term>
<term>Posterior</term>
<term>Posterior chamber</term>
<term>Postoperative</term>
<term>Prospective Studies</term>
<term>Prosthesis Design</term>
<term>Silicone Elastomers</term>
<term>Suture Techniques</term>
<term>Suture Techniques (adverse effects)</term>
<term>Technique</term>
<term>Vision Disorders (rehabilitation)</term>
<term>Visual Acuity</term>
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<term>Polymethyl Methacrylate</term>
<term>Silicone Elastomers</term>
</keywords>
<keywords scheme="MESH" qualifier="adverse effects" xml:lang="en"><term>Suture Techniques</term>
</keywords>
<keywords scheme="MESH" qualifier="etiology" xml:lang="en"><term>Foreign-Body Migration</term>
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<keywords scheme="MESH" qualifier="prevention & control" xml:lang="en"><term>Cataract</term>
<term>Foreign-Body Migration</term>
</keywords>
<keywords scheme="MESH" qualifier="rehabilitation" xml:lang="en"><term>Vision Disorders</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Aged</term>
<term>Humans</term>
<term>Lens Capsule, Crystalline</term>
<term>Lenses, Intraocular</term>
<term>Minimally Invasive Surgical Procedures</term>
<term>Prospective Studies</term>
<term>Prosthesis Design</term>
<term>Suture Techniques</term>
<term>Visual Acuity</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Biomatériau</term>
<term>Capsule</term>
<term>Chambre postérieure</term>
<term>Complication</term>
<term>Conception</term>
<term>Déplacement</term>
<term>Etude comparative</term>
<term>Fixation</term>
<term>Homme</term>
<term>Implantation</term>
<term>Lentille intraoculaire</term>
<term>Opacification</term>
<term>Postopératoire</term>
<term>Postérieur</term>
<term>Technique</term>
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<front><div type="abstract" xml:lang="en">Purpose Realizing that precise posterior chamber intraocular lens (PC-IOL) centration is needed to consistently achieve good optical results and visual rehabilitation after modern cataract surgery, the authors assessed the status and success rate of lens haptic fixation and its correlation with lens optic centration-decentration in a large series of eyes with PC-IOLs obtained postmortem.Design Prospective analysis of pseudophakic eyes obtained postmortem.Participants A total of 3493 human eyes obtained postmortem, the largest database of such specimens available to date.Methods Miyake-Apple posterior photographic technique.Main outcome measures The amount of decentration of rigid PC-IOLs and small-incision foldable PC-IOLs was analyzed, and the results were correlated with the type of fixation that had been achieved in each case.Results Determination of mean values revealed that capsular bag fixation was achieved in 52.05% of eyes, asymmetric bag-sulcus fixation in 34.21% of eyes, and sulcus-sulcus fixation in 13.74% of eyes. Asymmetrically fixed lenses consistently showed significant decentration. During the past 5 years (1993–98), the overall rate of in-the-bag fixation increased to 59.2%; by 1998 it had increased to 64%. Most significantly, success in achieving bag-bag fixation of foldable IOLs implanted in association with modern capsular surgery with small incisions has surged to 90% over the past 4 years.Conclusions The authors found a direct correlation of decentration in eyes with asymmetric fixation, and the results underscore the need for careful in-the-bag haptic placement. Although few surgeons today would dispute the goal to implanting haptics in the capsular bag, these findings show that the overall success rate over the years has, while improving, remained surprisingly low. The overall success rate of about 60% seen with all lens designs is probably as good as can be expected with classic large-incision extracapsular techniques. However, and most important and encouraging, the success rate of haptic fixation in cases with foldable lenses has improved dramatically during the past 4 years (up to the 90% range). This coincides with the present emphasis on modern capsular surgery and small-incision techniques used to insert these lenses.</div>
</front>
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<li>Inde</li>
<li>États-Unis</li>
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<country name="Allemagne"><region name="Bade-Wurtemberg"><name sortKey="Auffarth, Gerd U" sort="Auffarth, Gerd U" uniqKey="Auffarth G" first="Gerd U" last="Auffarth">Gerd U. Auffarth</name>
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Serveur d'exploration sur les dispositifs haptiques

Update on fixation of rigid and foldable posterior chamber intraocular lenses. part I

Update on fixation of rigid and foldable posterior chamber intraocular lenses. part I

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

	Serveur d'exploration sur les dispositifs haptiques
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