Clinical and anatomical study of the effect of transscleral fixation of posterior chamber lenses on early postkeratoplasty astigmatism.
Identifieur interne : 002160 ( PubMed/Corpus ); précédent : 002159; suivant : 002161Clinical and anatomical study of the effect of transscleral fixation of posterior chamber lenses on early postkeratoplasty astigmatism.
Auteurs : D R Hardten ; E J Holland ; D J Doughman ; J D Nelson ; A W Evangelista ; J M KetchamSource :
- Cornea [ 0277-3740 ] ; 1993.
English descriptors
- KwdEn :
- Aged, Astigmatism (etiology), Astigmatism (pathology), Cornea (pathology), Corneal Diseases (pathology), Corneal Diseases (surgery), Follow-Up Studies, Humans, Keratoplasty, Penetrating (adverse effects), Lenses, Intraocular (adverse effects), Models, Anatomic, Sclera (surgery), Surgical Flaps, Suture Techniques (adverse effects).
- MESH :
- adverse effects : Keratoplasty, Penetrating, Lenses, Intraocular, Suture Techniques.
- etiology : Astigmatism.
- pathology : Astigmatism, Cornea, Corneal Diseases.
- surgery : Corneal Diseases, Sclera.
- Aged, Follow-Up Studies, Humans, Models, Anatomic, Surgical Flaps.
Abstract
We reviewed the pattern of astigmatism after penetrating keratoplasty and transsclerally sutured posterior chamber lens (TSPCL) placement in 73 patients. Thirty-five patients (48%) had an axis of astigmatism oriented perpendicularly to the haptics of the TSPCL. Twenty-seven patients (37%) had an orientation of astigmatism that was in the same meridian of the haptics of the TSPCL. Eleven patients (15%) had an axis of astigmatism oriented obliquely to the meridian of the haptics of the TSPCL. The distance the haptic fixation sutures were placed behind the limbus appeared to be correlated with the orientation of astigmatism. Patients having the lens fixated within 0.75 mm of the limbus were more likely to have astigmatism oriented perpendicular to the meridian of the haptics of the posterior chamber lens in the early postoperative period. Patients having the lens fixated 2-3 mm posterior to the limbus were more likely to have astigmatism oriented in the same meridian as the haptics of the posterior chamber lens in the early postoperative period. In an eye bank model of TSPCLs during penetrating keratoplasty, the placement of a posterior chamber lens with haptics fixated within 0.75 mm of the limbus significantly widens the recipient bed an average of 0.3 mm in the meridian of the haptics of lens placement (p = 0.02). When the posterior chamber lens haptics were fixated 3 mm posterior to the limbus, the recipient bed was significantly narrowed in the meridian of lens placement an average of 0.2 mm (p = 0.02). It appears that the TSPCLs may have an effect on early postkeratoplasty astigmatism by distorting the corneal wound at the time of keratoplasty.
PubMed: 8339556
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Thirty-five patients (48%) had an axis of astigmatism oriented perpendicularly to the haptics of the TSPCL. Twenty-seven patients (37%) had an orientation of astigmatism that was in the same meridian of the haptics of the TSPCL. Eleven patients (15%) had an axis of astigmatism oriented obliquely to the meridian of the haptics of the TSPCL. The distance the haptic fixation sutures were placed behind the limbus appeared to be correlated with the orientation of astigmatism. Patients having the lens fixated within 0.75 mm of the limbus were more likely to have astigmatism oriented perpendicular to the meridian of the haptics of the posterior chamber lens in the early postoperative period. Patients having the lens fixated 2-3 mm posterior to the limbus were more likely to have astigmatism oriented in the same meridian as the haptics of the posterior chamber lens in the early postoperative period. In an eye bank model of TSPCLs during penetrating keratoplasty, the placement of a posterior chamber lens with haptics fixated within 0.75 mm of the limbus significantly widens the recipient bed an average of 0.3 mm in the meridian of the haptics of lens placement (p = 0.02). When the posterior chamber lens haptics were fixated 3 mm posterior to the limbus, the recipient bed was significantly narrowed in the meridian of lens placement an average of 0.2 mm (p = 0.02). It appears that the TSPCLs may have an effect on early postkeratoplasty astigmatism by distorting the corneal wound at the time of keratoplasty.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">8339556</PMID><DateCreated><Year>1993</Year><Month>08</Month><Day>30</Day></DateCreated><DateCompleted><Year>1993</Year><Month>08</Month><Day>30</Day></DateCompleted><DateRevised><Year>2004</Year><Month>11</Month><Day>17</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0277-3740</ISSN><JournalIssue CitedMedium="Print"><Volume>12</Volume><Issue>4</Issue><PubDate><Year>1993</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Cornea</Title><ISOAbbreviation>Cornea</ISOAbbreviation></Journal><ArticleTitle>Clinical and anatomical study of the effect of transscleral fixation of posterior chamber lenses on early postkeratoplasty astigmatism.</ArticleTitle><Pagination><MedlinePgn>282-8</MedlinePgn></Pagination><Abstract><AbstractText>We reviewed the pattern of astigmatism after penetrating keratoplasty and transsclerally sutured posterior chamber lens (TSPCL) placement in 73 patients. Thirty-five patients (48%) had an axis of astigmatism oriented perpendicularly to the haptics of the TSPCL. Twenty-seven patients (37%) had an orientation of astigmatism that was in the same meridian of the haptics of the TSPCL. Eleven patients (15%) had an axis of astigmatism oriented obliquely to the meridian of the haptics of the TSPCL. The distance the haptic fixation sutures were placed behind the limbus appeared to be correlated with the orientation of astigmatism. Patients having the lens fixated within 0.75 mm of the limbus were more likely to have astigmatism oriented perpendicular to the meridian of the haptics of the posterior chamber lens in the early postoperative period. Patients having the lens fixated 2-3 mm posterior to the limbus were more likely to have astigmatism oriented in the same meridian as the haptics of the posterior chamber lens in the early postoperative period. In an eye bank model of TSPCLs during penetrating keratoplasty, the placement of a posterior chamber lens with haptics fixated within 0.75 mm of the limbus significantly widens the recipient bed an average of 0.3 mm in the meridian of the haptics of lens placement (p = 0.02). When the posterior chamber lens haptics were fixated 3 mm posterior to the limbus, the recipient bed was significantly narrowed in the meridian of lens placement an average of 0.2 mm (p = 0.02). It appears that the TSPCLs may have an effect on early postkeratoplasty astigmatism by distorting the corneal wound at the time of keratoplasty.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Hardten</LastName><ForeName>D R</ForeName><Initials>DR</Initials><AffiliationInfo><Affiliation>Department of Ophthalmology, University of Minnesota, Minneapolis 55455.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Holland</LastName><ForeName>E J</ForeName><Initials>EJ</Initials></Author><Author ValidYN="Y"><LastName>Doughman</LastName><ForeName>D J</ForeName><Initials>DJ</Initials></Author><Author ValidYN="Y"><LastName>Nelson</LastName><ForeName>J D</ForeName><Initials>JD</Initials></Author><Author ValidYN="Y"><LastName>Evangelista</LastName><ForeName>A W</ForeName><Initials>AW</Initials></Author><Author ValidYN="Y"><LastName>Ketcham</LastName><ForeName>J M</ForeName><Initials>JM</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>UNITED STATES</Country><MedlineTA>Cornea</MedlineTA><NlmUniqueID>8216186</NlmUniqueID><ISSNLinking>0277-3740</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000368">Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D001251">Astigmatism</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000209">etiology</QualifierName><QualifierName MajorTopicYN="N" UI="Q000473">pathology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D003315">Cornea</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000473">pathology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D003316">Corneal Diseases</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000473">pathology</QualifierName><QualifierName MajorTopicYN="N" UI="Q000601">surgery</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D005500">Follow-Up Studies</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D006801">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D015948">Keratoplasty, Penetrating</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000009">adverse effects</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D007910">Lenses, Intraocular</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000009">adverse effects</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D008953">Models, Anatomic</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D012590">Sclera</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000601">surgery</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D013524">Surgical Flaps</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D013536">Suture Techniques</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000009">adverse effects</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1993</Year><Month>7</Month><Day>1</Day></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1993</Year><Month>7</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1993</Year><Month>7</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">8339556</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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