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Abstract #5665 Published in IGR 2-1
Algorithm for interpreting the results of frequency doubling perimetry
Patel SC; Friedman DS; Varadkar P; Robin ALAmerican Journal of Ophthalmology 2000; 129: 323-327
PURPOSE: To evaluate an algorithm for the identification of glaucomatous visual field defects with the screening mode of frequency doubling technology. METHODS: Screening-mode frequency doubling technology and Swedish interactive threshold algorithm perimetry were performed on 137 of 150 consecutive patients referred to a glaucoma specialist. The authors created an algorithm for the frequency doubling technology that gave increased importance to both more severe defects and defects closer to fixation. These values were then compared with the results of the Swedish interactive threshold algorithm visual fields evaluated by the glaucoma hemifield test, two masked glaucoma specialists, and a published definition of glaucomatous damage to determine sensitivity and specificity of the frequency doubling technology screening mode for detecting glaucoma.
Dr. S.C. Patel, Department of Ophthalmology, Greater Baltimore Medical Center, Baltimore, MD, USA
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)