Journal article

Improving Spatial Resolution and Test Times of Visual Field Testing Using ARREST

Andrew Turpin, William H Morgan, Allison M Mckendrick

TRANSLATIONAL VISION SCIENCE & TECHNOLOGY | ASSOC RESEARCH VISION OPHTHALMOLOGY INC | Published : 2018

Abstract

Purpose: Correctly classifying progression in moderate to advanced glaucoma is difficult. Pointwise visual field test-retest variability is high for sensitivities below approximately 20 dB; hence, reliably detecting progression requires many test repeats. We developed a testing approach that does not attempt to threshold accurately in areas with high variability, but instead expends presentations increasing spatial fidelity. Methods: Our visual field procedure Australian Reduced Range Extended Spatial Test (ARREST; a variant of the Bayesian procedure Zippy Estimation by Sequential Testing [ZEST]) applies the following approach: once a location has an estimated sensitivity of <17 dB (a "defec..

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