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Article: Prevalence and mechanism of appositional angle closure in acute primary angle closure after iridotomy

TitlePrevalence and mechanism of appositional angle closure in acute primary angle closure after iridotomy
Authors
KeywordsAppositional Closure
Ciliary Body
Patent Iridotomy
Prevalence
Issue Date2005
PublisherWiley-Blackwell Publishing Asia. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CEO
Citation
Clinical And Experimental Ophthalmology, 2005, v. 33 n. 5, p. 478-482 How to Cite?
AbstractPurpose: A prospective observational case series to assess the prevalence of appositional angle closure in darkness among iridotomized Chinese eyes after acute primary angle closure (APAC) with the use of both clinical methods and ultrasound biomicroscopy. Methods: Sixteen Chinese patients who had history of APAC and subsequent successful treatment with laser peripheral iridotomy were examined. Fourteen additional control subjects were studied. Gonioscopy and ultrasound biomicroscopic examination were performed in the dark. Gonioscopic appearance of the angle was assessed, and quantitative measurements of the angle from the ultrasound biomicroscopic images were taken. Results: Of the APAC eyes 55.6% had appositionally closed angle clinically and in 38.9% only Schwalbe's line was visible on gonioscopy. Ultrasound biomicroscopy confirmed structurally different anterior segments between eyes with APAC and the control eyes. In particular, the trabecular-ciliary-process distances were markedly different between the two groups. Conclusion: This study documented a high prevalence of appositional closure in iridotomized eyes after APAC in Chinese patients. The anteriorly positioned ciliary body, as documented in these cases by ultrasound biomicroscopy, is the likely mechanism of the angle crowding in this patient population. © 2005 Blackwell Publishing Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/176442
ISSN
2015 Impact Factor: 2.546
2015 SCImago Journal Rankings: 1.335
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYeung, BYMen_US
dc.contributor.authorNg, PWCen_US
dc.contributor.authorChiu, TYHen_US
dc.contributor.authorTsang, CWen_US
dc.contributor.authorLi, FCHen_US
dc.contributor.authorChi, CCen_US
dc.contributor.authorLai, JSMen_US
dc.contributor.authorTham, CCYen_US
dc.contributor.authorLam, DSCen_US
dc.date.accessioned2012-11-26T09:11:18Z-
dc.date.available2012-11-26T09:11:18Z-
dc.date.issued2005en_US
dc.identifier.citationClinical And Experimental Ophthalmology, 2005, v. 33 n. 5, p. 478-482en_US
dc.identifier.issn1442-6404en_US
dc.identifier.urihttp://hdl.handle.net/10722/176442-
dc.description.abstractPurpose: A prospective observational case series to assess the prevalence of appositional angle closure in darkness among iridotomized Chinese eyes after acute primary angle closure (APAC) with the use of both clinical methods and ultrasound biomicroscopy. Methods: Sixteen Chinese patients who had history of APAC and subsequent successful treatment with laser peripheral iridotomy were examined. Fourteen additional control subjects were studied. Gonioscopy and ultrasound biomicroscopic examination were performed in the dark. Gonioscopic appearance of the angle was assessed, and quantitative measurements of the angle from the ultrasound biomicroscopic images were taken. Results: Of the APAC eyes 55.6% had appositionally closed angle clinically and in 38.9% only Schwalbe's line was visible on gonioscopy. Ultrasound biomicroscopy confirmed structurally different anterior segments between eyes with APAC and the control eyes. In particular, the trabecular-ciliary-process distances were markedly different between the two groups. Conclusion: This study documented a high prevalence of appositional closure in iridotomized eyes after APAC in Chinese patients. The anteriorly positioned ciliary body, as documented in these cases by ultrasound biomicroscopy, is the likely mechanism of the angle crowding in this patient population. © 2005 Blackwell Publishing Ltd.en_US
dc.languageengen_US
dc.publisherWiley-Blackwell Publishing Asia. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CEOen_US
dc.relation.ispartofClinical and Experimental Ophthalmologyen_US
dc.subjectAppositional Closureen_US
dc.subjectCiliary Bodyen_US
dc.subjectPatent Iridotomyen_US
dc.subjectPrevalenceen_US
dc.titlePrevalence and mechanism of appositional angle closure in acute primary angle closure after iridotomyen_US
dc.typeArticleen_US
dc.identifier.emailLai, JSM: laism@hku.hken_US
dc.identifier.authorityLai, JSM=rp00295en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1111/j.1442-9071.2005.01065.xen_US
dc.identifier.pmid16181272-
dc.identifier.scopuseid_2-s2.0-33644813317en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33644813317&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume33en_US
dc.identifier.issue5en_US
dc.identifier.spage478en_US
dc.identifier.epage482en_US
dc.identifier.isiWOS:000231902400007-
dc.publisher.placeAustraliaen_US
dc.identifier.scopusauthoridYeung, BYM=7007031421en_US
dc.identifier.scopusauthoridNg, PWC=36658518500en_US
dc.identifier.scopusauthoridChiu, TYH=7202210389en_US
dc.identifier.scopusauthoridTsang, CW=17342808000en_US
dc.identifier.scopusauthoridLi, FCH=24779764500en_US
dc.identifier.scopusauthoridChi, CC=12769561900en_US
dc.identifier.scopusauthoridLai, JSM=7401939748en_US
dc.identifier.scopusauthoridTham, CCY=7006081241en_US
dc.identifier.scopusauthoridLam, DSC=35500200200en_US
dc.identifier.citeulike325644-

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