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Elliot B. Werner, MD; Kim I. Bishop, MS; Jonathan Koelle; Gordon R. Douglas, MD; Raymond P. LeBlanc, MD; Richard P. Mills, MD; Bernard Schwartz, MD, PhD; William R. Whalen, MD; Jacob T. Wilensky, MD

Arch Ophthalmol. 1988;106(5):619-623.

Abstract
• The visual fields of 30 patients (subjects) with glaucoma were sent to six experienced clinicians (observers). Each subject had at least four visual field examinations on the OCTOPUS 201 automated perimeter spanning at least one year. Each observer was asked to review the visual field data of each subject and determine whether the visual fields were stable, improved, or worse over time. The visual field data were then analyzed using six different statistical models. In only 15 of the 30 subjects did at least five of the six human observers agree on the behavior of the visual field. Agreement among the statistical models was better, with at least five of the six models agreeing on 22 of the 30 subjects. It was concluded that there is, at present, no validated technique for detecting progressive visual field loss in glaucoma using automated perimetry when relatively few visual fields are available for analysis.

Author Affiliations
From the Scheie Eye Institute, Department of Ophthalmology, University of Pennsylvania, Philadelphia (Dr Werner, Ms Bishop, and Mr Koelle); the Department of Ophthalmology, University of British Columbia, Vancouver (Dr Douglas); the Department of Ophthalmology, Dalhousie University, Halifax, Nova Scotia (Dr LeBlanc); the Department of Ophthalmology, University of Washington, Seattle (Dr Mills); the Department of Ophthalmology and Tufts-New England Medical Center, Tufts University School of Medicine, Boston (Dr Schwartz); the Department of Ophthalmology, University of Colorado, Denver (Dr Whalen); and the Illinois Eye and Ear Infirmary, University of Illinois, Chicago (Dr Wilensky).

Footnotes
Accepted for publication Oct 19, 1987.

Presented in part at the Annual Meeting of the Association for Research in Vision and Ophthalmology, Sarasota, Fla, May 4, 1987.

Reprint requests to Scheie Eye Institute, 51 N 39th St, Philadelphia, PA 19104 (Dr Werner).

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