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Title: Inter-observer and intra-observer agreement in the interpretation of visual fields in glaucoma.
Authors: King, AJ
Farnworth, D
Thompson, JR
First Published: 1997
Citation: EYE (LOND), 1997, 11 ( Pt 5), pp. 687-691
Abstract: Visual field changes are one of the main parameters used to monitor progression of glaucoma. This study assesses the degree of intra-observer and inter-observer agreement among nine observers in grading visual fields in glaucoma patients using a visual field system previously described by Jay. The results show a median inter-observer agreement of 61% (median kappa = 0.52) and a median intra-observer agreement of 72% (median kappa = 0.65). This system for grading fields in glaucoma has a high degree of intra-observer agreement, suggesting it is a useful system for longitudinal follow-up of patients by a single observer. The higher degree of disagreement between observers points to the need for careful pretraining of observers in clinical management and research where the results from visual field examinations are to be graded by more than one clinician.
DOI Link: 10.1038/eye.1997.178
ISSN: 0950-222X
Type: Journal Article
Appears in Collections:Published Articles, Dept. of Health Sciences

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