Comparison of the induced astigmatism after temporal clear corneal tunnel incisions of different sizes.
Identifieur interne : 002100 ( PubMed/Curation ); précédent : 002099; suivant : 002101Comparison of the induced astigmatism after temporal clear corneal tunnel incisions of different sizes.
Auteurs : T. Kohnen [Allemagne] ; B. Dick ; K W JacobiSource :
- Journal of cataract and refractive surgery [ 0886-3350 ] ; 1995.
English descriptors
- KwdEn :
- Aged, Aged, 80 and over, Astigmatism (etiology), Astigmatism (physiopathology), Cornea (physiopathology), Cornea (surgery), Humans, Image Processing, Computer-Assisted, Lenses, Intraocular, Methylmethacrylates, Middle Aged, Phacoemulsification (methods), Postoperative Complications, Prospective Studies, Silicone Elastomers, Sutures.
- MESH :
- chemical : Methylmethacrylates, Silicone Elastomers.
- etiology : Astigmatism.
- methods : Phacoemulsification.
- physiopathology : Astigmatism, Cornea.
- surgery : Cornea.
- Aged, Aged, 80 and over, Humans, Image Processing, Computer-Assisted, Lenses, Intraocular, Middle Aged, Postoperative Complications, Prospective Studies, Sutures.
Abstract
A prospective, randomized study compared the surgically induced astigmatism after 3.5 mm, 4.0 mm, and 5.0 mm temporal corneal tunnel incisions over six months. We studied 60 eyes of 60 patients who had phacoemulsification through a two-step clear corneal tunnel incision and implantation of one of three posterior chamber intraocular lenses (IOLs). Patients were divided into three groups of 20 each: Group A, cartridge injection of a foldable plate-haptic silicone IOL through a 3.5 mm self-sealing incision; Group B, cartridge injection of a disc silicone IOL through a 4.0 mm self-sealing incision; Group C, 5.0 mm optic poly(methyl methacrylate) IOL through a 5.0 mm incision with one radial suture. Corneal topography data were obtained using a computerized videokeratographic analysis system preoperatively and one week and six months postoperatively. Vector analysis was performed to calculate the surgically induced astigmatism. After the first postoperative week, mean induced astigmatism was 0.63 diopters (D) (+/- 0.41) in Group A, 0.64 D (+/- 0.35) in Group B, and 0.91 D (+/- 0.77) in Group C. After six months, it was 0.37 D (+/- 0.14) in Group A, 0.56 D (+/- 0.34) in Group B, and 0.70 D (+/- 0.50) in Group C. Surgically induced astigmatism was significantly lower in Group A than in Group B (P < .05) and Group C (P < .005) after six months. Vector analysis demonstrated that temporal corneal tunnel incisions induced clinically minimal astigmatism over six months postoperatively depending on incision size.
PubMed: 8523286
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Dick</name></author><author><name sortKey="Jacobi, K W" sort="Jacobi, K W" uniqKey="Jacobi K" first="K W" last="Jacobi">K W Jacobi</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1995">1995</date><idno type="RBID">pubmed:8523286</idno><idno type="pmid">8523286</idno><idno type="wicri:Area/PubMed/Corpus">002100</idno><idno type="wicri:Area/PubMed/Curation">002100</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Comparison of the induced astigmatism after temporal clear corneal tunnel incisions of different sizes.</title><author><name sortKey="Kohnen, T" sort="Kohnen, T" uniqKey="Kohnen T" first="T" last="Kohnen">T. Kohnen</name><affiliation wicri:level="1"><nlm:affiliation>Department of Ophthalmology, University of Giessen, Germany.</nlm:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Department of Ophthalmology, University of Giessen</wicri:regionArea></affiliation></author><author><name sortKey="Dick, B" sort="Dick, B" uniqKey="Dick B" first="B" last="Dick">B. Dick</name></author><author><name sortKey="Jacobi, K W" sort="Jacobi, K W" uniqKey="Jacobi K" first="K W" last="Jacobi">K W Jacobi</name></author></analytic><series><title level="j">Journal of cataract and refractive surgery</title><idno type="ISSN">0886-3350</idno><imprint><date when="1995" type="published">1995</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aged</term><term>Aged, 80 and over</term><term>Astigmatism (etiology)</term><term>Astigmatism (physiopathology)</term><term>Cornea (physiopathology)</term><term>Cornea (surgery)</term><term>Humans</term><term>Image Processing, Computer-Assisted</term><term>Lenses, Intraocular</term><term>Methylmethacrylates</term><term>Middle Aged</term><term>Phacoemulsification (methods)</term><term>Postoperative Complications</term><term>Prospective Studies</term><term>Silicone Elastomers</term><term>Sutures</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Methylmethacrylates</term><term>Silicone Elastomers</term></keywords><keywords scheme="MESH" qualifier="etiology" xml:lang="en"><term>Astigmatism</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Phacoemulsification</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Astigmatism</term><term>Cornea</term></keywords><keywords scheme="MESH" qualifier="surgery" xml:lang="en"><term>Cornea</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Aged</term><term>Aged, 80 and over</term><term>Humans</term><term>Image Processing, Computer-Assisted</term><term>Lenses, Intraocular</term><term>Middle Aged</term><term>Postoperative Complications</term><term>Prospective Studies</term><term>Sutures</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A prospective, randomized study compared the surgically induced astigmatism after 3.5 mm, 4.0 mm, and 5.0 mm temporal corneal tunnel incisions over six months. We studied 60 eyes of 60 patients who had phacoemulsification through a two-step clear corneal tunnel incision and implantation of one of three posterior chamber intraocular lenses (IOLs). Patients were divided into three groups of 20 each: Group A, cartridge injection of a foldable plate-haptic silicone IOL through a 3.5 mm self-sealing incision; Group B, cartridge injection of a disc silicone IOL through a 4.0 mm self-sealing incision; Group C, 5.0 mm optic poly(methyl methacrylate) IOL through a 5.0 mm incision with one radial suture. Corneal topography data were obtained using a computerized videokeratographic analysis system preoperatively and one week and six months postoperatively. Vector analysis was performed to calculate the surgically induced astigmatism. After the first postoperative week, mean induced astigmatism was 0.63 diopters (D) (+/- 0.41) in Group A, 0.64 D (+/- 0.35) in Group B, and 0.91 D (+/- 0.77) in Group C. After six months, it was 0.37 D (+/- 0.14) in Group A, 0.56 D (+/- 0.34) in Group B, and 0.70 D (+/- 0.50) in Group C. Surgically induced astigmatism was significantly lower in Group A than in Group B (P < .05) and Group C (P < .005) after six months. Vector analysis demonstrated that temporal corneal tunnel incisions induced clinically minimal astigmatism over six months postoperatively depending on incision size.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">8523286</PMID><DateCreated><Year>1996</Year><Month>01</Month><Day>25</Day></DateCreated><DateCompleted><Year>1996</Year><Month>01</Month><Day>25</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>21</Volume><Issue>4</Issue><PubDate><Year>1995</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Journal of cataract and refractive surgery</Title><ISOAbbreviation>J Cataract Refract Surg</ISOAbbreviation></Journal><ArticleTitle>Comparison of the induced astigmatism after temporal clear corneal tunnel incisions of different sizes.</ArticleTitle><Pagination><MedlinePgn>417-24</MedlinePgn></Pagination><Abstract><AbstractText>A prospective, randomized study compared the surgically induced astigmatism after 3.5 mm, 4.0 mm, and 5.0 mm temporal corneal tunnel incisions over six months. We studied 60 eyes of 60 patients who had phacoemulsification through a two-step clear corneal tunnel incision and implantation of one of three posterior chamber intraocular lenses (IOLs). Patients were divided into three groups of 20 each: Group A, cartridge injection of a foldable plate-haptic silicone IOL through a 3.5 mm self-sealing incision; Group B, cartridge injection of a disc silicone IOL through a 4.0 mm self-sealing incision; Group C, 5.0 mm optic poly(methyl methacrylate) IOL through a 5.0 mm incision with one radial suture. Corneal topography data were obtained using a computerized videokeratographic analysis system preoperatively and one week and six months postoperatively. Vector analysis was performed to calculate the surgically induced astigmatism. After the first postoperative week, mean induced astigmatism was 0.63 diopters (D) (+/- 0.41) in Group A, 0.64 D (+/- 0.35) in Group B, and 0.91 D (+/- 0.77) in Group C. After six months, it was 0.37 D (+/- 0.14) in Group A, 0.56 D (+/- 0.34) in Group B, and 0.70 D (+/- 0.50) in Group C. Surgically induced astigmatism was significantly lower in Group A than in Group B (P < .05) and Group C (P < .005) after six months. Vector analysis demonstrated that temporal corneal tunnel incisions induced clinically minimal astigmatism over six months postoperatively depending on incision size.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Kohnen</LastName><ForeName>T</ForeName><Initials>T</Initials><AffiliationInfo><Affiliation>Department of Ophthalmology, University of Giessen, Germany.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Dick</LastName><ForeName>B</ForeName><Initials>B</Initials></Author><Author ValidYN="Y"><LastName>Jacobi</LastName><ForeName>K W</ForeName><Initials>KW</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016430">Clinical Trial</PublicationType><PublicationType UI="D003160">Comparative Study</PublicationType><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D016449">Randomized Controlled Trial</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>UNITED STATES</Country><MedlineTA>J Cataract Refract Surg</MedlineTA><NlmUniqueID>8604171</NlmUniqueID><ISSNLinking>0886-3350</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D008768">Methylmethacrylates</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012826">Silicone Elastomers</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000368">Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000369">Aged, 80 and over</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D001251">Astigmatism</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000209">etiology</QualifierName><QualifierName MajorTopicYN="N" UI="Q000503">physiopathology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D003315">Cornea</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000503">physiopathology</QualifierName><QualifierName MajorTopicYN="Y" UI="Q000601">surgery</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D006801">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D007091">Image Processing, Computer-Assisted</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D007910">Lenses, Intraocular</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D008768">Methylmethacrylates</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D008875">Middle Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D018918">Phacoemulsification</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000379">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y" UI="D011183">Postoperative Complications</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D011446">Prospective Studies</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D012826">Silicone Elastomers</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D013537">Sutures</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1995</Year><Month>7</Month><Day>1</Day></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1995</Year><Month>7</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1995</Year><Month>7</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">8523286</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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