[Surface quality of flexible silicone intraocular lenses. A scanning electron microscopy study].
Identifieur interne : 001E23 ( PubMed/Checkpoint ); précédent : 001E22; suivant : 001E24[Surface quality of flexible silicone intraocular lenses. A scanning electron microscopy study].
Auteurs : T. Kohnen [États-Unis] ; G. Magdowski ; D D KochSource :
- Klinische Monatsblätter für Augenheilkunde [ 0023-2165 ] ; 1995.
English descriptors
- KwdEn :
- MESH :
- chemical : Silicones.
- instrumentation : Cataract Extraction.
- Humans, Lenses, Intraocular, Microscopy, Electron, Scanning, Prosthesis Design, Reference Values, Surface Properties.
Abstract
Soft intraocular lenses (IOLs) have been developed to be folded during insertion to allow implantation through a small incision. The surface of the IOL is of great importance in postoperative inflammation and long-term acceptance of the implant. Rough and sharp edges can damage delicate intraocular tissues. The purpose of this study was to analyze new, foldable silicone IOLs for surface quality prior to and following folding.
DOI: 10.1055/s-2008-1035377
PubMed: 8587300
Affiliations:
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">[Surface quality of flexible silicone intraocular lenses. A scanning electron microscopy study].</title><author><name sortKey="Kohnen, T" sort="Kohnen, T" uniqKey="Kohnen T" first="T" last="Kohnen">T. Kohnen</name><affiliation wicri:level="2"><nlm:affiliation>Cullen Eye Institute, Baylor College of Medicine, Department of Ophthalmology, Houston, Texas, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Cullen Eye Institute, Baylor College of Medicine, Department of Ophthalmology, Houston, Texas</wicri:regionArea><placeName><region type="state">Texas</region></placeName></affiliation></author><author><name sortKey="Magdowski, G" sort="Magdowski, G" uniqKey="Magdowski G" first="G" last="Magdowski">G. Magdowski</name></author><author><name sortKey="Koch, D D" sort="Koch, D D" uniqKey="Koch D" first="D D" last="Koch">D D Koch</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1995">1995</date><idno type="RBID">pubmed:8587300</idno><idno type="pmid">8587300</idno><idno type="doi">10.1055/s-2008-1035377</idno><idno type="wicri:Area/PubMed/Corpus">002094</idno><idno type="wicri:Area/PubMed/Curation">002094</idno><idno type="wicri:Area/PubMed/Checkpoint">001E23</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">[Surface quality of flexible silicone intraocular lenses. A scanning electron microscopy study].</title><author><name sortKey="Kohnen, T" sort="Kohnen, T" uniqKey="Kohnen T" first="T" last="Kohnen">T. Kohnen</name><affiliation wicri:level="2"><nlm:affiliation>Cullen Eye Institute, Baylor College of Medicine, Department of Ophthalmology, Houston, Texas, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Cullen Eye Institute, Baylor College of Medicine, Department of Ophthalmology, Houston, Texas</wicri:regionArea><placeName><region type="state">Texas</region></placeName></affiliation></author><author><name sortKey="Magdowski, G" sort="Magdowski, G" uniqKey="Magdowski G" first="G" last="Magdowski">G. Magdowski</name></author><author><name sortKey="Koch, D D" sort="Koch, D D" uniqKey="Koch D" first="D D" last="Koch">D D Koch</name></author></analytic><series><title level="j">Klinische Monatsblätter für Augenheilkunde</title><idno type="ISSN">0023-2165</idno><imprint><date when="1995" type="published">1995</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cataract Extraction (instrumentation)</term><term>Humans</term><term>Lenses, Intraocular</term><term>Microscopy, Electron, Scanning</term><term>Prosthesis Design</term><term>Reference Values</term><term>Silicones</term><term>Surface Properties</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Silicones</term></keywords><keywords scheme="MESH" qualifier="instrumentation" xml:lang="en"><term>Cataract Extraction</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Humans</term><term>Lenses, Intraocular</term><term>Microscopy, Electron, Scanning</term><term>Prosthesis Design</term><term>Reference Values</term><term>Surface Properties</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Soft intraocular lenses (IOLs) have been developed to be folded during insertion to allow implantation through a small incision. The surface of the IOL is of great importance in postoperative inflammation and long-term acceptance of the implant. Rough and sharp edges can damage delicate intraocular tissues. The purpose of this study was to analyze new, foldable silicone IOLs for surface quality prior to and following folding.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">8587300</PMID><DateCreated><Year>1996</Year><Month>03</Month><Day>27</Day></DateCreated><DateCompleted><Year>1996</Year><Month>03</Month><Day>27</Day></DateCompleted><DateRevised><Year>2009</Year><Month>11</Month><Day>11</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0023-2165</ISSN><JournalIssue CitedMedium="Print"><Volume>207</Volume><Issue>4</Issue><PubDate><Year>1995</Year><Month>Oct</Month></PubDate></JournalIssue><Title>Klinische Monatsblätter für Augenheilkunde</Title><ISOAbbreviation>Klin Monbl Augenheilkd</ISOAbbreviation></Journal><ArticleTitle>[Surface quality of flexible silicone intraocular lenses. A scanning electron microscopy study].</ArticleTitle><Pagination><MedlinePgn>253-63</MedlinePgn></Pagination><Abstract><AbstractText Label="BACKGROUND" NlmCategory="BACKGROUND">Soft intraocular lenses (IOLs) have been developed to be folded during insertion to allow implantation through a small incision. The surface of the IOL is of great importance in postoperative inflammation and long-term acceptance of the implant. Rough and sharp edges can damage delicate intraocular tissues. The purpose of this study was to analyze new, foldable silicone IOLs for surface quality prior to and following folding.</AbstractText><AbstractText Label="MATERIALS AND METHODS" NlmCategory="METHODS">Eleven silicone IOLs of different types were included in this study (four one-piece plate-haptic silicone IOLs and seven three-piece silicone IOLs with polypropylene, PMMA or polyimid haptics). We performed scanning electron microscopy on brand-new IOLs prior to and following folding either with forceps or inserter. Special attention was given to the silicone optic surface, optic edges, haptic-optic junctions and the haptic itself. Photographs were taken at 5-350 times magnification.</AbstractText><AbstractText Label="RESULTS" NlmCategory="RESULTS">All IOLS demonstrated a smooth and homogeneous optic surface at low magnification. At high-power magnification (X 350), distinctive surface patterns were evident in some IOLs, which turned out to be artefacts. The edge finish showed surplus silicone material and molding flash in six of 11 IOLs. Positioning holes of the 4 plate-haptic IOLs were, except in one IOL, rounded and not rough. Photographs of the haptic-optic junctions revealed surplus material or clefts between the haptic and optic in six of the 7 three-piece IOLs; the loop ends of two IOLs showed a roughened or irregular surface. We did not detect any IOL changes produced by folding.</AbstractText><AbstractText Label="CONCLUSIONS" NlmCategory="CONCLUSIONS">The silicone IOLs tested demonstrated generally acceptable surface properties, but most IOLs had regional surface irregularities of varying magnitude. The clinical impact of these remains to be established, but surplus material or surface defects might result in deposition of inflammatory cells, protein or microorganisms and synechia formation. Folding of the IOLs did not produce superficial defects.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Kohnen</LastName><ForeName>T</ForeName><Initials>T</Initials><AffiliationInfo><Affiliation>Cullen Eye Institute, Baylor College of Medicine, Department of Ophthalmology, Houston, Texas, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Magdowski</LastName><ForeName>G</ForeName><Initials>G</Initials></Author><Author ValidYN="Y"><LastName>Koch</LastName><ForeName>D D</ForeName><Initials>DD</Initials></Author></AuthorList><Language>ger</Language><PublicationTypeList><PublicationType UI="D003160">Comparative Study</PublicationType><PublicationType UI="D004740">English Abstract</PublicationType><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><VernacularTitle>Oberflächenqualität faltbarer Intraokularlinsen aus Silikon. Eine rasterelektronenmikroskopische Studie.</VernacularTitle></Article><MedlineJournalInfo><Country>GERMANY</Country><MedlineTA>Klin Monbl Augenheilkd</MedlineTA><NlmUniqueID>0014133</NlmUniqueID><ISSNLinking>0023-2165</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012828">Silicones</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N" UI="D002387">Cataract Extraction</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000295">instrumentation</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D006801">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y" UI="D007910">Lenses, Intraocular</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y" UI="D008855">Microscopy, Electron, Scanning</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D011474">Prosthesis Design</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D012016">Reference Values</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y" UI="D012828">Silicones</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D013499">Surface Properties</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1995</Year><Month>10</Month><Day>1</Day></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1995</Year><Month>10</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1995</Year><Month>10</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">8587300</ArticleId><ArticleId IdType="doi">10.1055/s-2008-1035377</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Texas</li></region></list><tree><noCountry><name sortKey="Koch, D D" sort="Koch, D D" uniqKey="Koch D" first="D D" last="Koch">D D Koch</name><name sortKey="Magdowski, G" sort="Magdowski, G" uniqKey="Magdowski G" first="G" last="Magdowski">G. Magdowski</name></noCountry><country name="États-Unis"><region name="Texas"><name sortKey="Kohnen, T" sort="Kohnen, T" uniqKey="Kohnen T" first="T" last="Kohnen">T. Kohnen</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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