Agreement of visual field interpretation among glaucoma specialists and comprehensive ophthalmologists: comparison of time and methods
AimsTo evaluate interobserver agreement and interpretation time for three clinically available formats of visual field presentation: serial Humphrey visual field (HVF), STATPAC2 and PROGRESSOR.Methods40 field series from the Advanced Glaucoma Intervention Study were presented to eight glaucoma speci...
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Published in | British journal of ophthalmology Vol. 95; no. 6; pp. 828 - 831 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
BMA House, Tavistock Square, London, WC1H 9JR
BMJ Publishing Group Ltd
01.06.2011
BMJ Publishing Group BMJ Publishing Group LTD |
Subjects | |
Online Access | Get full text |
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Summary: | AimsTo evaluate interobserver agreement and interpretation time for three clinically available formats of visual field presentation: serial Humphrey visual field (HVF), STATPAC2 and PROGRESSOR.Methods40 field series from the Advanced Glaucoma Intervention Study were presented to eight glaucoma specialists and eight comprehensive ophthalmologists to determine whether each field series was stable or progressive. Interobserver agreement and agreement with Hodapp–Parrish–Anderson criteria were evaluated using κ statistics, and the interpretation time was compared.ResultsFor glaucoma specialists, median κ values for interobserver agreement were 0.47, 0.60 and 0.43 for HVF, STATPAC2 and PROGRESSOR, respectively. Respective κ values for comprehensive ophthalmologists were 0.43, 0.43 and 0.35. For glaucoma specialists, median κ values for agreement with Hodapp–Parrish–Anderson criteria were 0.52, 0.67 and 0.52 for HVF, STATPAC2 and PROGRESSOR, respectively. Respective κ values for comprehensive ophthalmologists were 0.41, 0.47 and 0.33. For glaucoma specialists, the mean±SD interpretation time for the series of 40 fields was 63.4±35.9, 57.1±23.1 and 41.1±15.3 min using HVF, STATPAC2 and PROGRESSOR, respectively. Respective interpretation times for comprehensive ophthalmologists were 72.9±38.3, 68.6±30.6 and 51±24.1 min. Interpretation time was decreased when STATPAC2 or PROGRESSOR was used rather than HVF. Time reduction was significant for glaucoma specialists using PROGRESSOR (p=0.02).ConclusionsFor glaucoma specialists, interobserver agreement and agreement with HPA criteria were moderate to substantial. For comprehensive ophthalmologists, interobserver agreement and agreement with HPA criteria were fair to moderate. Field interpretation time may be reduced clinically when using STATPAC2 or PROGRESSOR rather than HVF. |
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Bibliography: | href:bjophthalmol-95-828.pdf istex:FF0AAE9502F6A40343E90813B43D5A4EF2090916 PMID:20956271 ArticleID:bjophthalmol186569 ark:/67375/NVC-3QLFKZM9-Z local:bjophthalmol;95/6/828 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0007-1161 1468-2079 |
DOI: | 10.1136/bjo.2010.186569 |