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Abstract #10387 Published in IGR 6-1
Learning effect among perimetric novices with screening C-20-1 frequency doubling technology perimetry
Brush MB; Chen PPAmerican Journal of Ophthalmology 2004; 137: 551-552
PURPOSE: To investigate whether perimetric novices without glaucoma demonstrate a learning effect using screening-mode frequency doubling technology perimetry. DESIGN: Prospective observational study. METHODS: The study included 101 healthy subjects who had never undergone automated perimetry and who were administered the C-20-1 version of the frequency doubling technology. Subjects who returned an abnormal or unreliable test were retested until a normal result was obtained. RESULTS: Ninety-seven subjects (96%) returned a normal examination after one test, and 99 (98%) did so after two tests. Two subjects had abnormal initial tests, and two others had unreliable tests. These four subjects required repeat (up to four) testings to return a normal test. CONCLUSIONS: A small percentage of perimetric novices will demonstrate a learning effect using C-20-1 perimetry, but this mode has high specificity appropriate for glaucoma screening.
Dr. M.B. Brush, Department of Ophthalmology, University of Washington, Seattle, WA 98195-6485, USA. pchen@u.washington.edu
Classification:
6.6.3 Special methods (e.g. color, contrast, SWAP etc.) (Part of: 6 Clinical examination methods > 6.6 Visual field examination and other visual function tests)