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Article: Prospective study on retinal nerve fibre layer changes after an acute episode of phacomorphic angle closure

TitleProspective study on retinal nerve fibre layer changes after an acute episode of phacomorphic angle closure
Authors
KeywordsCup-Disc Ratio
Humphrey Visual Field
Optical Coherence Tomography
Phacomorphic
Retinal Nerve Fibre Layer
Issue Date2012
PublisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0165-5701
Citation
International Ophthalmology, 2012, v. 32 n. 6, p. 577-582 How to Cite?
AbstractTo investigate the retinal nerve fibre layer (RNFL) changes after an acute attack of phacomorphic angle closure. This prospective study involved ten cases of phacomorphic angle closure that underwent cataract extraction and intraocular lens insertion after intraocular pressure lowering. Apart from visual acuity and intraocular pressure (IOP), RNFL thickness and vertical cup disc ratio (VCDR) were measured by optical coherence tomography (OCT) at 3-9 months post attack. Humphrey visual field assessment was performed at 9 months post attack. All cases had mean phacomorphic duration of <5 days. Postoperatively, best correct Snellen visual acuity was 0.4 ± 0.2 and IOP at 9 months was 11.0 ± 3.1 mmHg. There was no difference in VCDR and RNFL between the attack and contralateral eye at 3 months post attack (both p = 0.4). At 9 months post attack, there was significant thinning in the average (p = 0.01), superior (p = 0.01), and inferior (p = 0.006) RNFL. There was no significant difference in the pattern standard deviation (PSD) between the two eyes on the Humphrey visual field nor was there any correlation between PSD severity and RNFL thinning (all p > 0.2. Patients with <5 days duration of phacomorphic angle closure are likely to have reasonable postoperative vision. An acute episode of phacomorphic angle closure can trigger an accelerated RNFL thinning despite normal IOP and open angles, most noticeable in the superior and inferior quadrants, occurring between 3 and 9 months post attack. Glaucomatous optic neuropathy in the attack eye was evident by OCT but not by visual field assessment at the same time interval. © 2012 The Author(s).
Persistent Identifierhttp://hdl.handle.net/10722/176487
ISSN
2015 Impact Factor: 0.959
2015 SCImago Journal Rankings: 0.526

 

DC FieldValueLanguage
dc.contributor.authorLee, JWYen_US
dc.contributor.authorLai, JSMen_US
dc.contributor.authorYick, DWFen_US
dc.contributor.authorYuen, CYFen_US
dc.date.accessioned2012-11-26T09:11:44Z-
dc.date.available2012-11-26T09:11:44Z-
dc.date.issued2012en_US
dc.identifier.citationInternational Ophthalmology, 2012, v. 32 n. 6, p. 577-582en_US
dc.identifier.issn0165-5701en_US
dc.identifier.urihttp://hdl.handle.net/10722/176487-
dc.description.abstractTo investigate the retinal nerve fibre layer (RNFL) changes after an acute attack of phacomorphic angle closure. This prospective study involved ten cases of phacomorphic angle closure that underwent cataract extraction and intraocular lens insertion after intraocular pressure lowering. Apart from visual acuity and intraocular pressure (IOP), RNFL thickness and vertical cup disc ratio (VCDR) were measured by optical coherence tomography (OCT) at 3-9 months post attack. Humphrey visual field assessment was performed at 9 months post attack. All cases had mean phacomorphic duration of <5 days. Postoperatively, best correct Snellen visual acuity was 0.4 ± 0.2 and IOP at 9 months was 11.0 ± 3.1 mmHg. There was no difference in VCDR and RNFL between the attack and contralateral eye at 3 months post attack (both p = 0.4). At 9 months post attack, there was significant thinning in the average (p = 0.01), superior (p = 0.01), and inferior (p = 0.006) RNFL. There was no significant difference in the pattern standard deviation (PSD) between the two eyes on the Humphrey visual field nor was there any correlation between PSD severity and RNFL thinning (all p > 0.2. Patients with <5 days duration of phacomorphic angle closure are likely to have reasonable postoperative vision. An acute episode of phacomorphic angle closure can trigger an accelerated RNFL thinning despite normal IOP and open angles, most noticeable in the superior and inferior quadrants, occurring between 3 and 9 months post attack. Glaucomatous optic neuropathy in the attack eye was evident by OCT but not by visual field assessment at the same time interval. © 2012 The Author(s).en_US
dc.languageengen_US
dc.publisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0165-5701en_US
dc.relation.ispartofInternational Ophthalmologyen_US
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectCup-Disc Ratioen_US
dc.subjectHumphrey Visual Fielden_US
dc.subjectOptical Coherence Tomographyen_US
dc.subjectPhacomorphicen_US
dc.subjectRetinal Nerve Fibre Layeren_US
dc.titleProspective study on retinal nerve fibre layer changes after an acute episode of phacomorphic angle closureen_US
dc.typeArticleen_US
dc.identifier.emailLee, JWY: jackylee@hku.hken_US
dc.identifier.authorityLee, JWY=rp01498en_US
dc.description.naturepublished_or_final_versionen_US
dc.identifier.doi10.1007/s10792-012-9614-5en_US
dc.identifier.pmid22847248-
dc.identifier.scopuseid_2-s2.0-84872724302en_US
dc.identifier.hkuros205026-
dc.identifier.hkuros223883-
dc.identifier.volume32-
dc.identifier.issue6-
dc.identifier.spage577en_US
dc.identifier.epage582en_US
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridLee, JWY=36625464100en_US
dc.identifier.scopusauthoridLai, JSM=55321323300en_US
dc.identifier.scopusauthoridYick, DWF=6507461286en_US
dc.identifier.scopusauthoridYuen, CYF=55321404600en_US
dc.identifier.citeulike11004488-

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