Effect of a capsular tension ring on the shape of the capsular bag and opening and the intraocular lens
Identifieur interne : 007861 ( Main/Exploration ); précédent : 007860; suivant : 007862Effect of a capsular tension ring on the shape of the capsular bag and opening and the intraocular lens
Auteurs : Do Hyung Lee ; Hwa-Yeon Lee ; Kyung Hun Lee ; Kyu Hyung Chung [Corée du Sud] ; Choun-Ki Joo [Corée du Sud]Source :
- Journal of Cataract & Refractive Surgery [ 0886-3350 ] ; 2000.
English descriptors
- KwdEn :
- MESH :
- anatomy & histology : Lens Capsule, Crystalline.
- instrumentation : Cataract Extraction.
- surgery : Lens Capsule, Crystalline.
- Animals, Lens Implantation, Intraocular, Lenses, Intraocular, Phacoemulsification, Prosthesis Implantation, Rabbits, Swine.
Abstract
Purpose To evaluate the effect of a capsular tension ring (CTR) on the shape of the capsular bag, the extent of the capsular opening, and the shape of intraocular lenses (IOLs).Setting Department of Ophthalmology, College of Medicine, The Catholic University of Korea, Seoul, Korea.Methods The corneal button was removed from porcine eyes in vitro. After phacoemulsification was performed, an IOL alone or an IOL and CTR were inserted in the capsular bag in 6 groups of 5 eyes each. The eyes were examined from the posterior aspect using a Miyake technique to assess capsular bag shape and the capsular opening. To evaluate effects of the CTR on IOL shape, rabbit eyes had phacoemulsification and IOL implantation with and without placement of a CTR in vivo. The IOLs were removed from enucleated eyes 3 months postoperatively and compared with unused control IOLs.Results The differences between the maximum and minimum diameters of the capsular bags and capsular openings were significantly less in groups with a CTR. Intraocular lens size (difference from haptic to haptic) decreased significantly in eyes with only an IOL compared with normal controls or eyes with both an IOL and CTR.Conclusions The CTR preserved the integrity of the capsular bag diameter, capsular opening, and IOL shape. It is likely that CTR implantation can avert contracture of the capsular bag and capsular opening, preventing IOL decentration.
Url:
DOI: 10.1016/S0886-3350(00)00610-6
Affiliations:
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Lee) South Korea</wicri:noCountry></affiliation></author><author><name sortKey="Chung, Kyu Hyung" sort="Chung, Kyu Hyung" uniqKey="Chung K" first="Kyu Hyung" last="Chung">Kyu Hyung Chung</name><affiliation wicri:level="3"><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Chung Eye Hospital & Laser Center (Chung), Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement></placeName></affiliation></author><author><name sortKey="Joo, Choun Ki" sort="Joo, Choun Ki" uniqKey="Joo C" first="Choun-Ki" last="Joo">Choun-Ki Joo</name><affiliation wicri:level="1"><country wicri:rule="url">Corée du Sud</country></affiliation><affiliation><wicri:noCountry code="subField">Joo) South Korea</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="2000">2000</date><biblScope unit="volume">27</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="452">452</biblScope><biblScope unit="page" to="456">456</biblScope></imprint><idno type="ISSN">0886-3350</idno></series><idno type="istex">37354630D26B7F7990CD625B532A873ACE0605D2</idno><idno type="DOI">10.1016/S0886-3350(00)00610-6</idno><idno type="PII">S0886-3350(00)00610-6</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0886-3350</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Cataract Extraction (instrumentation)</term><term>Lens Capsule, Crystalline (anatomy & histology)</term><term>Lens Capsule, Crystalline (surgery)</term><term>Lens Implantation, Intraocular</term><term>Lenses, Intraocular</term><term>Phacoemulsification</term><term>Prosthesis Implantation</term><term>Rabbits</term><term>Swine</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Lens Capsule, Crystalline</term></keywords><keywords scheme="MESH" qualifier="instrumentation" xml:lang="en"><term>Cataract Extraction</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>Lens Implantation, Intraocular</term><term>Lenses, Intraocular</term><term>Phacoemulsification</term><term>Prosthesis Implantation</term><term>Rabbits</term><term>Swine</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Purpose To evaluate the effect of a capsular tension ring (CTR) on the shape of the capsular bag, the extent of the capsular opening, and the shape of intraocular lenses (IOLs).Setting Department of Ophthalmology, College of Medicine, The Catholic University of Korea, Seoul, Korea.Methods The corneal button was removed from porcine eyes in vitro. After phacoemulsification was performed, an IOL alone or an IOL and CTR were inserted in the capsular bag in 6 groups of 5 eyes each. The eyes were examined from the posterior aspect using a Miyake technique to assess capsular bag shape and the capsular opening. To evaluate effects of the CTR on IOL shape, rabbit eyes had phacoemulsification and IOL implantation with and without placement of a CTR in vivo. The IOLs were removed from enucleated eyes 3 months postoperatively and compared with unused control IOLs.Results The differences between the maximum and minimum diameters of the capsular bags and capsular openings were significantly less in groups with a CTR. Intraocular lens size (difference from haptic to haptic) decreased significantly in eyes with only an IOL compared with normal controls or eyes with both an IOL and CTR.Conclusions The CTR preserved the integrity of the capsular bag diameter, capsular opening, and IOL shape. It is likely that CTR implantation can avert contracture of the capsular bag and capsular opening, preventing IOL decentration.</div></front></TEI><affiliations><list><country><li>Corée du Sud</li></country><settlement><li>Séoul</li></settlement></list><tree><noCountry><name sortKey="Lee, Do Hyung" sort="Lee, Do Hyung" uniqKey="Lee D" first="Do Hyung" last="Lee">Do Hyung Lee</name><name sortKey="Lee, Hwa Yeon" sort="Lee, Hwa Yeon" uniqKey="Lee H" first="Hwa-Yeon" last="Lee">Hwa-Yeon Lee</name><name sortKey="Lee, Kyung Hun" sort="Lee, Kyung Hun" uniqKey="Lee K" first="Kyung Hun" last="Lee">Kyung Hun Lee</name></noCountry><country name="Corée du Sud"><noRegion><name sortKey="Chung, Kyu Hyung" sort="Chung, Kyu Hyung" uniqKey="Chung K" first="Kyu Hyung" last="Chung">Kyu Hyung Chung</name></noRegion><name sortKey="Joo, Choun Ki" sort="Joo, Choun Ki" uniqKey="Joo C" first="Choun-Ki" last="Joo">Choun-Ki Joo</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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