Comparison of the induced astigmatism after temporal clear corneal tunnel incisions of different sizes
Identifieur interne : 009128 ( Main/Exploration ); précédent : 009127; suivant : 009129Comparison of the induced astigmatism after temporal clear corneal tunnel incisions of different sizes
Auteurs : Thomas Kohnen ; Burkhard Dick ; Karl W. JacobiSource :
- Journal of Cataract & Refractive Surgery [ 0886-3350 ] ; 1995.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Homme.
English descriptors
- KwdEn :
- Aged, Aged, 80 and over, Astigmatism, Astigmatism (etiology), Astigmatism (physiopathology), Cataract, Cornea, Cornea (physiopathology), Cornea (surgery), Exploration, Human, Humans, Image Processing, Computer-Assisted, Intraocular lens, Lenses, Intraocular, Methylmethacrylates, Middle Aged, Phacoemulsification, Phacoemulsification (methods), Posterior chamber, Postoperative, Postoperative Complications, Prospective Studies, Silicone Elastomers, Surgical implantation, Surgical incision, Sutures, cataract surgery, clear corneal tunnel incision, corneal astigmatism, corneal topography, foldable intraocular lens, small incision, videokeratography.
- 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.
Url:
DOI: 10.1016/S0886-3350(13)80532-9
Affiliations:
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Le document en format XML
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Jacobi</name><affiliation><wicri:noCountry code="subField">University of GiessenGermany</wicri:noCountry></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Cataract & Refractive Surgery</title><title level="j" type="abbrev">JCRS</title><idno type="ISSN">0886-3350</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1995">1995</date><biblScope unit="volume">21</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="417">417</biblScope><biblScope unit="page" to="424">424</biblScope></imprint><idno type="ISSN">0886-3350</idno></series><idno type="istex">2DCB1BB2B06EF3199284679C7BB70BC2E43BB43C</idno><idno type="DOI">10.1016/S0886-3350(13)80532-9</idno><idno type="PII">S0886-3350(13)80532-9</idno><idno type="ArticleID">80532</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0886-3350</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aged</term><term>Aged, 80 and over</term><term>Astigmatism</term><term>Astigmatism (etiology)</term><term>Astigmatism (physiopathology)</term><term>Cataract</term><term>Cornea</term><term>Cornea (physiopathology)</term><term>Cornea (surgery)</term><term>Exploration</term><term>Human</term><term>Humans</term><term>Image Processing, Computer-Assisted</term><term>Intraocular lens</term><term>Lenses, Intraocular</term><term>Methylmethacrylates</term><term>Middle Aged</term><term>Phacoemulsification</term><term>Phacoemulsification (methods)</term><term>Posterior chamber</term><term>Postoperative</term><term>Postoperative Complications</term><term>Prospective Studies</term><term>Silicone Elastomers</term><term>Surgical implantation</term><term>Surgical incision</term><term>Sutures</term><term>cataract surgery</term><term>clear corneal tunnel incision</term><term>corneal astigmatism</term><term>corneal topography</term><term>foldable intraocular lens</term><term>small incision</term><term>videokeratography</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><keywords scheme="Pascal" xml:lang="fr"><term>Astigmatisme</term><term>Cataracte</term><term>Chambre postérieure</term><term>Cornée</term><term>Exploration</term><term>Homme</term><term>Implantation chirurgicale</term><term>Incision chirurgicale</term><term>Lentille intraoculaire</term><term>Phacoémulsification</term><term>Postopératoire</term><term>Segment antérieur pathologie</term><term>Vidéokératographie</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Homme</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></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><affiliations><list></list><tree><noCountry><name sortKey="Dick, Burkhard" sort="Dick, Burkhard" uniqKey="Dick B" first="Burkhard" last="Dick">Burkhard Dick</name><name sortKey="Jacobi, Karl W" sort="Jacobi, Karl W" uniqKey="Jacobi K" first="Karl W." last="Jacobi">Karl W. Jacobi</name><name sortKey="Kohnen, Thomas" sort="Kohnen, Thomas" uniqKey="Kohnen T" first="Thomas" last="Kohnen">Thomas Kohnen</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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