Mini-haptics to improve capsular fixation of plate-haptic silicone intraocular lenses
Identifieur interne : 008691 ( Main/Exploration ); précédent : 008690; suivant : 008692Mini-haptics to improve capsular fixation of plate-haptic silicone intraocular lenses
Auteurs : David G. Kent ; Qun Peng ; Robert T. Isaacs ; Stephen B. Whiteside ; Derek L. Barker ; David J. AppleSource :
- Journal of Cataract & Refractive Surgery [ 0886-3350 ] ; 1998.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Biomatériau, Chirurgie, Homme.
English descriptors
- KwdEn :
- Animals, Biomaterial, Biomechanical Phenomena, Capsular bag, Capsulorhexis, Cell Division, Epithelial Cells (pathology), Eye, Fixation, Human, Improvement, Intraocular lens, Lens Capsule, Crystalline (pathology), Lens Capsule, Crystalline (surgery), Lens Implantation, Intraocular (methods), Lenses, Intraocular, Male, Prosthesis Design, Rabbits, Silicone Elastomers, Siloxane polymer, Surgery, Suture Techniques, Technique.
- MESH :
- chemical : Silicone Elastomers.
- methods : Lens Implantation, Intraocular.
- pathology : Epithelial Cells, Lens Capsule, Crystalline.
- surgery : Lens Capsule, Crystalline.
- Animals, Biomechanical Phenomena, Capsulorhexis, Cell Division, Lenses, Intraocular, Male, Prosthesis Design, Rabbits, Suture Techniques.
Abstract
Purpose: To evaluate the effects of a new mini-haptic design on the strength and stability of capsular bag fixation of plate-haptic silicone intraocular lenses (IOLs) and determine whether this design encourages the growth of regenerating lens material or fibrous tissue around the haptic biomaterial and thus improves lens fixation in the capsular bag.Setting: Center for Research on Ocular Therapeutics and Biodevices, Storm Eye Institute, Medical University of South Carolina, Department of Ophthalmology, Charleston, South Carolina, USA.Methods: Six rabbits had bilateral continuous curvilinear capsulorhexis, phacoemulsification, and plate-haptic silicone IOL implantation. Each rabbit had a small-hole plate IOL (Chiron C10UB) implanted in the right eye and a mini-haptic plate IOL (Chiron C40UB) in the left eye. All rabbits were killed at 2 months. The force required to extract one haptic from the capsular bag was measured with a digital force gauge. Histopathologic analysis was performed on all specimens.Results: The mini-haptic style IOLs required significantly more extraction force than the small-hole design (P = .011). Histopathologically, proliferating lens epithelial cells were observed growing circumferentially around the mini-haptics, causing a 360 degree synechia formation. This formation did not occur with the conventional small-hole plate IOLs used as the control.Conclusions: Lens epithelial cell proliferation around the mini-haptics significantly improved capsular bag fixation of the plate-haptic silicone IOL. This should decrease the incidence of clinical decentration and dislocation.
Url:
DOI: 10.1016/S0886-3350(98)80263-0
Affiliations:
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Le document en format XML
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Kent</name><affiliation><wicri:noCountry code="subField">Medical University of South CarolinaCharlestonSouth CarolinaUSA</wicri:noCountry></affiliation></author><author><name sortKey="Peng, Qun" sort="Peng, Qun" uniqKey="Peng Q" first="Qun" last="Peng">Qun Peng</name><affiliation><wicri:noCountry code="subField">Medical University of South CarolinaCharlestonSouth CarolinaUSA</wicri:noCountry></affiliation></author><author><name sortKey="Isaacs, Robert T" sort="Isaacs, Robert T" uniqKey="Isaacs R" first="Robert T." last="Isaacs">Robert T. Isaacs</name><affiliation><wicri:noCountry code="subField">Medical University of South CarolinaCharlestonSouth CarolinaUSA</wicri:noCountry></affiliation></author><author><name sortKey="Whiteside, Stephen B" sort="Whiteside, Stephen B" uniqKey="Whiteside S" first="Stephen B." last="Whiteside">Stephen B. Whiteside</name><affiliation><wicri:noCountry code="subField">Medical University of South CarolinaCharlestonSouth CarolinaUSA</wicri:noCountry></affiliation></author><author><name sortKey="Barker, Derek L" sort="Barker, Derek L" uniqKey="Barker D" first="Derek L." last="Barker">Derek L. Barker</name><affiliation><wicri:noCountry code="subField">Medical University of South CarolinaCharlestonSouth CarolinaUSA</wicri:noCountry></affiliation></author><author><name sortKey="Apple, David J" sort="Apple, David J" uniqKey="Apple D" first="David J." last="Apple">David J. Apple</name><affiliation><wicri:noCountry code="subField">Medical University of South CarolinaCharlestonSouth CarolinaUSA</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="1998">1998</date><biblScope unit="volume">24</biblScope><biblScope unit="issue">5</biblScope><biblScope unit="page" from="666">666</biblScope><biblScope unit="page" to="671">671</biblScope></imprint><idno type="ISSN">0886-3350</idno></series><idno type="istex">5ABA5A942A8EEFA32774542FDF9C3360552E54C8</idno><idno type="DOI">10.1016/S0886-3350(98)80263-0</idno><idno type="PII">S0886-3350(98)80263-0</idno><idno type="ArticleID">80263</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0886-3350</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Biomaterial</term><term>Biomechanical Phenomena</term><term>Capsular bag</term><term>Capsulorhexis</term><term>Cell Division</term><term>Epithelial Cells (pathology)</term><term>Eye</term><term>Fixation</term><term>Human</term><term>Improvement</term><term>Intraocular lens</term><term>Lens Capsule, Crystalline (pathology)</term><term>Lens Capsule, Crystalline (surgery)</term><term>Lens Implantation, Intraocular (methods)</term><term>Lenses, Intraocular</term><term>Male</term><term>Prosthesis Design</term><term>Rabbits</term><term>Silicone Elastomers</term><term>Siloxane polymer</term><term>Surgery</term><term>Suture Techniques</term><term>Technique</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Silicone Elastomers</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Lens Implantation, Intraocular</term></keywords><keywords scheme="MESH" qualifier="pathology" xml:lang="en"><term>Epithelial Cells</term><term>Lens Capsule, Crystalline</term></keywords><keywords scheme="MESH" qualifier="surgery" xml:lang="en"><term>Lens Capsule, Crystalline</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Biomechanical Phenomena</term><term>Capsulorhexis</term><term>Cell Division</term><term>Lenses, Intraocular</term><term>Male</term><term>Prosthesis Design</term><term>Rabbits</term><term>Suture Techniques</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Amélioration</term><term>Biomatériau</term><term>Chirurgie</term><term>Fixation</term><term>Homme</term><term>Lentille intraoculaire</term><term>Oeil</term><term>Sac capsulaire</term><term>Siloxane polymère</term><term>Technique</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Biomatériau</term><term>Chirurgie</term><term>Homme</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Purpose: To evaluate the effects of a new mini-haptic design on the strength and stability of capsular bag fixation of plate-haptic silicone intraocular lenses (IOLs) and determine whether this design encourages the growth of regenerating lens material or fibrous tissue around the haptic biomaterial and thus improves lens fixation in the capsular bag.Setting: Center for Research on Ocular Therapeutics and Biodevices, Storm Eye Institute, Medical University of South Carolina, Department of Ophthalmology, Charleston, South Carolina, USA.Methods: Six rabbits had bilateral continuous curvilinear capsulorhexis, phacoemulsification, and plate-haptic silicone IOL implantation. Each rabbit had a small-hole plate IOL (Chiron C10UB) implanted in the right eye and a mini-haptic plate IOL (Chiron C40UB) in the left eye. All rabbits were killed at 2 months. The force required to extract one haptic from the capsular bag was measured with a digital force gauge. Histopathologic analysis was performed on all specimens.Results: The mini-haptic style IOLs required significantly more extraction force than the small-hole design (P = .011). Histopathologically, proliferating lens epithelial cells were observed growing circumferentially around the mini-haptics, causing a 360 degree synechia formation. This formation did not occur with the conventional small-hole plate IOLs used as the control.Conclusions: Lens epithelial cell proliferation around the mini-haptics significantly improved capsular bag fixation of the plate-haptic silicone IOL. This should decrease the incidence of clinical decentration and dislocation.</div></front></TEI><affiliations><list></list><tree><noCountry><name sortKey="Apple, David J" sort="Apple, David J" uniqKey="Apple D" first="David J." last="Apple">David J. Apple</name><name sortKey="Barker, Derek L" sort="Barker, Derek L" uniqKey="Barker D" first="Derek L." last="Barker">Derek L. Barker</name><name sortKey="Isaacs, Robert T" sort="Isaacs, Robert T" uniqKey="Isaacs R" first="Robert T." last="Isaacs">Robert T. Isaacs</name><name sortKey="Kent, David G" sort="Kent, David G" uniqKey="Kent D" first="David G." last="Kent">David G. Kent</name><name sortKey="Peng, Qun" sort="Peng, Qun" uniqKey="Peng Q" first="Qun" last="Peng">Qun Peng</name><name sortKey="Whiteside, Stephen B" sort="Whiteside, Stephen B" uniqKey="Whiteside S" first="Stephen B." last="Whiteside">Stephen B. Whiteside</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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