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Article: Longitudinal evaluation of optic disc measurement variability with optical coherence tomography and confocal scanning laser ophthalmoscopy

TitleLongitudinal evaluation of optic disc measurement variability with optical coherence tomography and confocal scanning laser ophthalmoscopy
Authors
KeywordsConfocal scanning laser ophthalmoscopy
Rim area
Optical coherence tomography
Optic disc measurement variability
Issue Date2009
Citation
Journal of Glaucoma, 2009, v. 18, n. 2, p. 101-106 How to Cite?
AbstractPURPOSE: To evaluate and compare the longitudinal variability of optical coherence tomography (OCT) and confocal scanning laser ophthalmoscopy (CSLO) optic disc measurements. METHODS: A total of 25 normal and 50 glaucomatous eyes from 75 subjects were included in the analysis. The optic disc was measured by OCT and CSLO. Three separate measurements collected over an average period of 8.5±0.9 months were used to evaluate reproducibility. Univariate and multivariate regression analyses were performed to evaluate the associations between age, refraction, diagnosis (glaucoma or normal), visual field mean deviation, optic disc area, signal strength variance (OCT), optic disc area variance (OCT), image quality SD (CSLO), reference height variance (CSLO), and rim area variability. RESULTS: The intraclass correlation coefficient of optic disc measurements (except for optic disc area) ranged between 0.86 and 0.95 for OCT and between 0.89 and 0.96 for CSLO. The intraclass correlation coefficient for rim area measurement was significantly higher in CSLO (0.95) than that of OCT (0.86, P<0.001). After adjustment for other predictors, optic disc area variance and reference height variance were the most important factors responsible for rim area variability in OCT and CSLO, respectively. CONCLUSIONS: Although both OCT and CSLO have relatively low variability for optic disc measurements, CSLO demonstrates higher measurement reproducibility for rim area compared with OCT. Variations of disc area in OCT and reference height in CSLO constituted a significant proportion of the rim area variability during longitudinal assessment. © 2009 Lippincott Williams & Wilkins, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/298484
ISSN
2023 Impact Factor: 2.0
2023 SCImago Journal Rankings: 0.995
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLin, Dusheng-
dc.contributor.authorLeung, Christopher Kai Shun-
dc.contributor.authorWeinreb, Robert N.-
dc.contributor.authorCheung, Carol Yim Lui-
dc.contributor.authorLi, Haitao-
dc.contributor.authorLam, Dennis Shun Chiu-
dc.date.accessioned2021-04-08T03:08:31Z-
dc.date.available2021-04-08T03:08:31Z-
dc.date.issued2009-
dc.identifier.citationJournal of Glaucoma, 2009, v. 18, n. 2, p. 101-106-
dc.identifier.issn1057-0829-
dc.identifier.urihttp://hdl.handle.net/10722/298484-
dc.description.abstractPURPOSE: To evaluate and compare the longitudinal variability of optical coherence tomography (OCT) and confocal scanning laser ophthalmoscopy (CSLO) optic disc measurements. METHODS: A total of 25 normal and 50 glaucomatous eyes from 75 subjects were included in the analysis. The optic disc was measured by OCT and CSLO. Three separate measurements collected over an average period of 8.5±0.9 months were used to evaluate reproducibility. Univariate and multivariate regression analyses were performed to evaluate the associations between age, refraction, diagnosis (glaucoma or normal), visual field mean deviation, optic disc area, signal strength variance (OCT), optic disc area variance (OCT), image quality SD (CSLO), reference height variance (CSLO), and rim area variability. RESULTS: The intraclass correlation coefficient of optic disc measurements (except for optic disc area) ranged between 0.86 and 0.95 for OCT and between 0.89 and 0.96 for CSLO. The intraclass correlation coefficient for rim area measurement was significantly higher in CSLO (0.95) than that of OCT (0.86, P<0.001). After adjustment for other predictors, optic disc area variance and reference height variance were the most important factors responsible for rim area variability in OCT and CSLO, respectively. CONCLUSIONS: Although both OCT and CSLO have relatively low variability for optic disc measurements, CSLO demonstrates higher measurement reproducibility for rim area compared with OCT. Variations of disc area in OCT and reference height in CSLO constituted a significant proportion of the rim area variability during longitudinal assessment. © 2009 Lippincott Williams & Wilkins, Inc.-
dc.languageeng-
dc.relation.ispartofJournal of Glaucoma-
dc.subjectConfocal scanning laser ophthalmoscopy-
dc.subjectRim area-
dc.subjectOptical coherence tomography-
dc.subjectOptic disc measurement variability-
dc.titleLongitudinal evaluation of optic disc measurement variability with optical coherence tomography and confocal scanning laser ophthalmoscopy-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1097/IJG.0b013e318179f879-
dc.identifier.pmid19225344-
dc.identifier.scopuseid_2-s2.0-67651102569-
dc.identifier.volume18-
dc.identifier.issue2-
dc.identifier.spage101-
dc.identifier.epage106-
dc.identifier.isiWOS:000263738800002-
dc.identifier.issnl1057-0829-

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