Compression forces of haptics of selected posterior chamber lenses.
Identifieur interne : 002007 ( PubMed/Corpus ); précédent : 002006; suivant : 002008Compression forces of haptics of selected posterior chamber lenses.
Auteurs : O. P Rssinen ; J. R Ty ; A. Klemetti ; A L Lyyra ; J. TimonenSource :
- Journal of cataract and refractive surgery [ 0886-3350 ] ; 1997.
English descriptors
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- MESH :
Abstract
To compare the compressive forces of the haptics of different intraocular lens (IOL) models and analyze the observed differences.
PubMed: 9368171
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Compression forces of haptics of selected posterior chamber lenses.</title><author><name sortKey="P Rssinen, O" sort="P Rssinen, O" uniqKey="P Rssinen O" first="O" last="P Rssinen">O. P Rssinen</name><affiliation><nlm:affiliation>Department of Ophthalmology, Central Hospital of Central Finland, Jyväskylä, Finland.</nlm:affiliation></affiliation></author><author><name sortKey="R Ty, J" sort="R Ty, J" uniqKey="R Ty J" first="J" last="R Ty">J. R Ty</name></author><author><name sortKey="Klemetti, A" sort="Klemetti, A" uniqKey="Klemetti A" first="A" last="Klemetti">A. Klemetti</name></author><author><name sortKey="Lyyra, A L" sort="Lyyra, A L" uniqKey="Lyyra A" first="A L" last="Lyyra">A L Lyyra</name></author><author><name sortKey="Timonen, J" sort="Timonen, J" uniqKey="Timonen J" first="J" last="Timonen">J. Timonen</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1997">1997</date><idno type="RBID">pubmed:9368171</idno><idno type="pmid">9368171</idno><idno type="wicri:Area/PubMed/Corpus">002007</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Compression forces of haptics of selected posterior chamber lenses.</title><author><name sortKey="P Rssinen, O" sort="P Rssinen, O" uniqKey="P Rssinen O" first="O" last="P Rssinen">O. P Rssinen</name><affiliation><nlm:affiliation>Department of Ophthalmology, Central Hospital of Central Finland, Jyväskylä, Finland.</nlm:affiliation></affiliation></author><author><name sortKey="R Ty, J" sort="R Ty, J" uniqKey="R Ty J" first="J" last="R Ty">J. R Ty</name></author><author><name sortKey="Klemetti, A" sort="Klemetti, A" uniqKey="Klemetti A" first="A" last="Klemetti">A. Klemetti</name></author><author><name sortKey="Lyyra, A L" sort="Lyyra, A L" uniqKey="Lyyra A" first="A L" last="Lyyra">A L Lyyra</name></author><author><name sortKey="Timonen, J" sort="Timonen, J" uniqKey="Timonen J" first="J" last="Timonen">J. Timonen</name></author></analytic><series><title level="j">Journal of cataract and refractive surgery</title><idno type="ISSN">0886-3350</idno><imprint><date when="1997" type="published">1997</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Compressive Strength</term><term>Lens Implantation, Intraocular</term><term>Lenses, Intraocular</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Compressive Strength</term><term>Lens Implantation, Intraocular</term><term>Lenses, Intraocular</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">To compare the compressive forces of the haptics of different intraocular lens (IOL) models and analyze the observed differences.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">9368171</PMID><DateCreated><Year>1997</Year><Month>12</Month><Day>11</Day></DateCreated><DateCompleted><Year>1997</Year><Month>12</Month><Day>11</Day></DateCompleted><DateRevised><Year>2006</Year><Month>11</Month><Day>15</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0886-3350</ISSN><JournalIssue CitedMedium="Print"><Volume>23</Volume><Issue>8</Issue><PubDate><Year>1997</Year><Month>Oct</Month></PubDate></JournalIssue><Title>Journal of cataract and refractive surgery</Title><ISOAbbreviation>J Cataract Refract Surg</ISOAbbreviation></Journal><ArticleTitle>Compression forces of haptics of selected posterior chamber lenses.</ArticleTitle><Pagination><MedlinePgn>1237-46</MedlinePgn></Pagination><Abstract><AbstractText Label="PURPOSE" NlmCategory="OBJECTIVE">To compare the compressive forces of the haptics of different intraocular lens (IOL) models and analyze the observed differences.</AbstractText><AbstractText Label="SETTING" NlmCategory="METHODS">Central Hospital of Central Finland and University of Jyväskylä, Jyväskylä, Finland.</AbstractText><AbstractText Label="METHODS" NlmCategory="METHODS">The haptics of 28 IOL models were compressed to a diameter of 9.0 mm. The compression forces were measured at 0.5 mm intervals. The conclusions were verified by numerical simulations of mechanical models of the lenses.</AbstractText><AbstractText Label="RESULTS" NlmCategory="RESULTS">The measured forces varied between 100 and 601 mg at a diameter of 11.0 mm, 206 and 1057 mg at a diameter of 10.0 mm, and 315 and 2094 mg at a diameter of 9.0 mm. The slopes of the force curves of the three-piece lenses were fairly linear. In general, the three-piece models were less rigid than one-piece models and underwent plastic deformations after repeated compressions. For most one-piece models, compression force increased progressively with increasing compression. The overall IOL diameter and differences in haptic thickness and length and the angle between optic at the point of haptic insertion were the main causes of the observed differences in the compression forces. The variation in forces between individual specimens of the same model, which occurred with almost all models, were mainly the result of variations in haptic thickness.</AbstractText><AbstractText Label="CONCLUSION" NlmCategory="CONCLUSIONS">Great variations in the compression forces of the IOL haptics were found. Compression behaviors should be taken into account when selecting a lens to implant.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Pärssinen</LastName><ForeName>O</ForeName><Initials>O</Initials><AffiliationInfo><Affiliation>Department of Ophthalmology, Central Hospital of Central Finland, Jyväskylä, Finland.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Räty</LastName><ForeName>J</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Klemetti</LastName><ForeName>A</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Lyyra</LastName><ForeName>A L</ForeName><Initials>AL</Initials></Author><Author ValidYN="Y"><LastName>Timonen</LastName><ForeName>J</ForeName><Initials>J</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D003160">Comparative Study</PublicationType><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>UNITED STATES</Country><MedlineTA>J Cataract Refract Surg</MedlineTA><NlmUniqueID>8604171</NlmUniqueID><ISSNLinking>0886-3350</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="Y" UI="D019245">Compressive Strength</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D019654">Lens Implantation, Intraocular</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y" UI="D007910">Lenses, Intraocular</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1997</Year><Month>11</Month><Day>22</Day></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1997</Year><Month>11</Month><Day>22</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1997</Year><Month>11</Month><Day>22</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">9368171</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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