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Abstract #27107 Published in IGR 12-4
Agreement of visual field interpretation among glaucoma specialists and comprehensive ophthalmologists: Comparison of time and methods
Lin AP; Katz LJ; Spaeth GL; Moster MR; Henderer JD; Schmidt CM; Myers JSBritish Journal of Ophthalmology 2010;
See also comment(s) by Don Budenz •
Aims: To evaluate interobserver agreement and interpretation time for three clinically available formats of visual field presentation: serial Humphrey visual field (HVF), STATPAC2 and PROGRESSOR. Methods: 40 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 HodappeParrisheAnderson criteria were evaluated using k statistics, and the interpretation time was compared. Results: For glaucoma specialists, median k values for interobserver agreement were 0.47, 0.60 and 0.43 for HVF, STATPAC2 and PROGRESSOR, respectively. Respective k values for comprehensive ophthalmologists were 0.43, 0.43 and 0.35. For glaucoma specialists, median k values for agreement with HodappeParrisheAnderson criteria were 0.52, 0.67 and 0.52 for HVF, STATPAC2 and PROGRESSOR, respectively. Respective k values for comprehensive ophthalmologists were 0.41, 0.47 and 0.33. For glaucoma specialists, the mean(plus or minus)SD interpretation time for the series of 40 fields was 63.4(plus or minus)35.9, 57.1(plus or minus)23.1 and 41.1(plus or minus)15.3 min using HVF, STATPAC2 and PROGRESSOR, respectively. Respective interpretation times for comprehensive ophthalmologists were 72.9(plus or minus)38.3, 68.6(plus or minus)30.6 and 51(plus or minus)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). Conclusions: For 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. Copyright Article author (or their employer) 2010.
A.P. Lin. 2002 Holcombe Blvd 112C, Houston, TX 77030, United States. alin@bcm.edu
Classification:
6.6.2 Automated (Part of: 6 Clinical examination methods > 6.6 Visual field examination and other visual function tests)
