File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Assessing responses of the macula in patients with macular holes using a new system measuring localized visual acuity and the mfERG

TitleAssessing responses of the macula in patients with macular holes using a new system measuring localized visual acuity and the mfERG
Authors
Issue Date2005
PublisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0012-4486
Citation
Documenta Ophthalmologica, 2005, v. 110 n. 2-3, p. 181-191 How to Cite?
AbstractPurpose: To evaluate acuity and multifocal electroretinogram (mfERG) responses from the macula in affected and unaffected fellow eyes of patients with macular holes. Methods: We tested 10 eyes with macular hole and 10 fellow eyes from 11 patients. We measured local visual acuity thresholds at 27 discrete locations within 21° diameter using the Functional Fundus Imaging System (FFIS), a psychophysical system that measures visual acuity as a function of visual field location, and local ERG responses within 45° diameter using the mfERG. Results: In the affected eyes, the mean FFIS visual acuity thresholds were significantly elevated within the central 21° diameter area, compared to a group of control eyes. No significant differences were found between the acuities of the fellow eyes compared to those of the control group. The amplitudes of the first positive peak of the mfERG were reduced in the central 7.8° in affected eyes. In the central 2°, 4 out of 10 affected eyes showed non-measurable ERG signals. The remaining six eyes showed significantly reduced mean amplitudes, but not delayed implicit times, when compared to the control group. For the fellow eyes, the mean amplitudes of the mfERG and implicit times did not differ from the means of the control eyes. Conclusions: Both local psychophysical and electrophysiological testing demonstrated retinal dysfunction extending beyond the site of the macular holes in some patients (three of the patients had central mfERG amplitudes falling within the normal range). © Springer 2005.
Persistent Identifierhttp://hdl.handle.net/10722/176433
ISSN
2015 Impact Factor: 1.444
2015 SCImago Journal Rankings: 1.153
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorSzlyk, JPen_US
dc.contributor.authorVajaranant, TSen_US
dc.contributor.authorRana, Ren_US
dc.contributor.authorLai, WWen_US
dc.contributor.authorPulido, JSen_US
dc.contributor.authorPaliga, Jen_US
dc.contributor.authorBlair, NPen_US
dc.contributor.authorSeiple, Wen_US
dc.date.accessioned2012-11-26T09:11:15Z-
dc.date.available2012-11-26T09:11:15Z-
dc.date.issued2005en_US
dc.identifier.citationDocumenta Ophthalmologica, 2005, v. 110 n. 2-3, p. 181-191en_US
dc.identifier.issn0012-4486en_US
dc.identifier.urihttp://hdl.handle.net/10722/176433-
dc.description.abstractPurpose: To evaluate acuity and multifocal electroretinogram (mfERG) responses from the macula in affected and unaffected fellow eyes of patients with macular holes. Methods: We tested 10 eyes with macular hole and 10 fellow eyes from 11 patients. We measured local visual acuity thresholds at 27 discrete locations within 21° diameter using the Functional Fundus Imaging System (FFIS), a psychophysical system that measures visual acuity as a function of visual field location, and local ERG responses within 45° diameter using the mfERG. Results: In the affected eyes, the mean FFIS visual acuity thresholds were significantly elevated within the central 21° diameter area, compared to a group of control eyes. No significant differences were found between the acuities of the fellow eyes compared to those of the control group. The amplitudes of the first positive peak of the mfERG were reduced in the central 7.8° in affected eyes. In the central 2°, 4 out of 10 affected eyes showed non-measurable ERG signals. The remaining six eyes showed significantly reduced mean amplitudes, but not delayed implicit times, when compared to the control group. For the fellow eyes, the mean amplitudes of the mfERG and implicit times did not differ from the means of the control eyes. Conclusions: Both local psychophysical and electrophysiological testing demonstrated retinal dysfunction extending beyond the site of the macular holes in some patients (three of the patients had central mfERG amplitudes falling within the normal range). © Springer 2005.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=0012-4486en_US
dc.relation.ispartofDocumenta Ophthalmologicaen_US
dc.subject.meshAgeden_US
dc.subject.meshAged, 80 And Overen_US
dc.subject.meshElectroretinography - Instrumentationen_US
dc.subject.meshFemaleen_US
dc.subject.meshHumansen_US
dc.subject.meshMacula Lutea - Physiopathologyen_US
dc.subject.meshMaleen_US
dc.subject.meshMiddle Ageden_US
dc.subject.meshReproducibility Of Resultsen_US
dc.subject.meshRetinal Perforations - Physiopathologyen_US
dc.subject.meshVision Tests - Instrumentationen_US
dc.subject.meshVisual Acuity - Physiologyen_US
dc.titleAssessing responses of the macula in patients with macular holes using a new system measuring localized visual acuity and the mfERGen_US
dc.typeArticleen_US
dc.identifier.emailLai, WW: wicolai@hku.hken_US
dc.identifier.authorityLai, WW=rp00531en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1007/s10633-005-4313-4en_US
dc.identifier.pmid16328926-
dc.identifier.scopuseid_2-s2.0-28844480872en_US
dc.identifier.hkuros164051-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-28844480872&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume110en_US
dc.identifier.issue2-3en_US
dc.identifier.spage181en_US
dc.identifier.epage191en_US
dc.identifier.isiWOS:000236706100006-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridSzlyk, JP=7003361553en_US
dc.identifier.scopusauthoridVajaranant, TS=6508111233en_US
dc.identifier.scopusauthoridRana, R=7101742514en_US
dc.identifier.scopusauthoridLai, WW=7402231098en_US
dc.identifier.scopusauthoridPulido, JS=20135697200en_US
dc.identifier.scopusauthoridPaliga, J=6506159276en_US
dc.identifier.scopusauthoridBlair, NP=7005095959en_US
dc.identifier.scopusauthoridSeiple, W=7005218017en_US
dc.identifier.citeulike408775-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats