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Scanning electron microscopic analysis of acrylic intraocular lenses for microincision cataract surgery

Identifieur interne : 006044 ( Main/Exploration ); précédent : 006043; suivant : 006045

Scanning electron microscopic analysis of acrylic intraocular lenses for microincision cataract surgery

Auteurs : Rita Mencucci [Italie] ; Claudia Ponchietti [Italie] ; Lorenzo Nocentini [Italie] ; Daniele Danielli [Italie] ; Ugo Menchini [Italie]

Source :

Journal of cataract and refractive surgery [ 0886-3350 ] ; 2006.

RBID : Pascal:06-0237946

Descripteurs français

Pascal (Inist)
- Cataracte, Balayage, Microscopie électronique, Analyse, Lentille intraoculaire, Incision chirurgicale, Chirurgie, Ophtalmologie, Traitement.
Wicri :
- topic : Chirurgie.

English descriptors

KwdEn :
- Acrylic Resins, Analysis, Cataract, Electron Probe Microanalysis, Electron microscopy, Intraocular lens, Lenses, Intraocular, Microscopy, Electron, Scanning, Microsurgery, Ophthalmology, Phacoemulsification, Scanning, Surface Properties, Surgery, Surgical incision, Treatment.
MESH :
- chemical : Acrylic Resins.
- Electron Probe Microanalysis, Lenses, Intraocular, Microscopy, Electron, Scanning, Microsurgery, Phacoemulsification, Surface Properties.

Abstract

PURPOSE: To analyze the surface quality before and after folding of 2 intraocular lens (IOL) models designed for microincision cataract surgery. SETTING: Eye Clinic and Department of Human Pathology and Oncology, University of Florence, Florence, Italy. METHODS: Two IOL models now available for sub-2.0 mm microincision were studied: UltraChoice 1.0 Rollable ThinLens (ultrathin lens by ThinOptX) and AcriSmart (foldable lens by AcriTec). Eight lOLs of each model were examined. Scanning electron microscopy (SEM) was performed before and after IOL folding with a dedicated injector. Special attention was given to the optic surface and edges, the optic-haptic junction, and the haptic itself. RESULTS: Initially, the surface quality of lOLs was evaluated before folding. On SEM, smooth and homogeneous optic and haptic surfaces were revealed in both IOL models with no surplus material or molding flashes; edge finish of all optics showed no evidence of ridges. The IOL surfaces were evaluated after insertion into their injectors and after ejection at room temperature. After folding, the microincision lOLs showed no sign of surface alteration, probably because of their high water content, which makes these lOLs soft and flexible. CONCLUSIONS: Visual results and long-term biocompatibility of the lOLs are influenced by surface properties. In recent years, there has been a trend toward microincision cataract surgery. Our study shows that the 2 IOL models now available for sub-2.0 mm microincision have acceptable surface properties.

Affiliations:

Italie

Le document en format XML

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<author><name sortKey="Nocentini, Lorenzo" sort="Nocentini, Lorenzo" uniqKey="Nocentini L" first="Lorenzo" last="Nocentini">Lorenzo Nocentini</name>
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<author><name sortKey="Menchini, Ugo" sort="Menchini, Ugo" uniqKey="Menchini U" first="Ugo" last="Menchini">Ugo Menchini</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Oto-Neuro-Ophthalmological Surgical Sciences-Eye Clinic, University of Florence</s1>
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<seriesStmt><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>Acrylic Resins</term>
<term>Analysis</term>
<term>Cataract</term>
<term>Electron Probe Microanalysis</term>
<term>Electron microscopy</term>
<term>Intraocular lens</term>
<term>Lenses, Intraocular</term>
<term>Microscopy, Electron, Scanning</term>
<term>Microsurgery</term>
<term>Ophthalmology</term>
<term>Phacoemulsification</term>
<term>Scanning</term>
<term>Surface Properties</term>
<term>Surgery</term>
<term>Surgical incision</term>
<term>Treatment</term>
</keywords>
<keywords scheme="MESH" type="chemical" xml:lang="en"><term>Acrylic Resins</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Electron Probe Microanalysis</term>
<term>Lenses, Intraocular</term>
<term>Microscopy, Electron, Scanning</term>
<term>Microsurgery</term>
<term>Phacoemulsification</term>
<term>Surface Properties</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Cataracte</term>
<term>Balayage</term>
<term>Microscopie électronique</term>
<term>Analyse</term>
<term>Lentille intraoculaire</term>
<term>Incision chirurgicale</term>
<term>Chirurgie</term>
<term>Ophtalmologie</term>
<term>Traitement</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Chirurgie</term>
</keywords>
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<front><div type="abstract" xml:lang="en">PURPOSE: To analyze the surface quality before and after folding of 2 intraocular lens (IOL) models designed for microincision cataract surgery. SETTING: Eye Clinic and Department of Human Pathology and Oncology, University of Florence, Florence, Italy. METHODS: Two IOL models now available for sub-2.0 mm microincision were studied: UltraChoice 1.0 Rollable ThinLens (ultrathin lens by ThinOptX) and AcriSmart (foldable lens by AcriTec). Eight lOLs of each model were examined. Scanning electron microscopy (SEM) was performed before and after IOL folding with a dedicated injector. Special attention was given to the optic surface and edges, the optic-haptic junction, and the haptic itself. RESULTS: Initially, the surface quality of lOLs was evaluated before folding. On SEM, smooth and homogeneous optic and haptic surfaces were revealed in both IOL models with no surplus material or molding flashes; edge finish of all optics showed no evidence of ridges. The IOL surfaces were evaluated after insertion into their injectors and after ejection at room temperature. After folding, the microincision lOLs showed no sign of surface alteration, probably because of their high water content, which makes these lOLs soft and flexible. CONCLUSIONS: Visual results and long-term biocompatibility of the lOLs are influenced by surface properties. In recent years, there has been a trend toward microincision cataract surgery. Our study shows that the 2 IOL models now available for sub-2.0 mm microincision have acceptable surface properties.</div>
</front>
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<tree><country name="Italie"><noRegion><name sortKey="Mencucci, Rita" sort="Mencucci, Rita" uniqKey="Mencucci R" first="Rita" last="Mencucci">Rita Mencucci</name>
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<name sortKey="Danielli, Daniele" sort="Danielli, Daniele" uniqKey="Danielli D" first="Daniele" last="Danielli">Daniele Danielli</name>
<name sortKey="Menchini, Ugo" sort="Menchini, Ugo" uniqKey="Menchini U" first="Ugo" last="Menchini">Ugo Menchini</name>
<name sortKey="Nocentini, Lorenzo" sort="Nocentini, Lorenzo" uniqKey="Nocentini L" first="Lorenzo" last="Nocentini">Lorenzo Nocentini</name>
<name sortKey="Ponchietti, Claudia" sort="Ponchietti, Claudia" uniqKey="Ponchietti C" first="Claudia" last="Ponchietti">Claudia Ponchietti</name>
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Serveur d'exploration sur les dispositifs haptiques

Scanning electron microscopic analysis of acrylic intraocular lenses for microincision cataract surgery

Scanning electron microscopic analysis of acrylic intraocular lenses for microincision cataract surgery

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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