Journal article

Development of efficient threshold strategies for frequency doubling technology perimetry using computer simulation

A Turpin, AM McKendrick, CA Johnson, AJ Vingrys

INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE | ASSOC RESEARCH VISION OPHTHALMOLOGY INC | Published : 2002

Abstract

PURPOSE: To develop new test procedures for frequency-doubling technology (FDT) perimetry that improve performance beyond those currently used. METHODS: Two novel threshold estimation procedures were evaluated: a rapid, efficient binary search technique (REBS) and a maximum-likelihood estimation (ZEST) procedure. A computerized visual field simulation model was developed to determine the accuracy and efficiency of these procedures. This model was constructed using previously derived characteristics of FDT perimetry from both normal observers (n = 506) and those with glaucomatous visual field loss (n = 352). The computer simulation program was used to determine the best parameters for the two..

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