Testing for Glaucoma with the spatial frequency doubling illusion
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Date
Authors
Maddess, Ted
Goldberg, Ivan
Dobinson, Jeffrey
Wine, Stephen
Welsh, Alan
James, Andrew
Journal Title
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Volume Title
Publisher
Pergamon-Elsevier Ltd
Abstract
We examined the performance of tests for glaucoma based on the spatial frequency doubling (FD) illusion. Contrast thresholds for seeing the FD illusion in four large visual field regions were measured from 340 subjects who were tested up to seven times over 2 years. Median sensitivities of 91% at specificities of 95% were obtained. Test-retest variability for the worst hemifield thresholds averaged 2.22 db±0.09 S.E. for all tested groups, and significant progression was observed for glaucoma suspects over the seven visits, indicating that tests based on the FD illusion can detect diffuse early glaucomatous loss.
Description
Keywords
accuracy, adult, aged, article, controlled study, glaucoma, human, human experiment, major clinical study, perimetry, priority journal, spatial frequency discrimination, technique, visual field, Adult, Aged, Contrast Sensitivity, Disease Progression, Foll Frequency-doubling, Glaucoma, Hemifield, Illusion, Threshold
Citation
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Source
Vision Research
Type
Book Title
Entity type
Access Statement
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Restricted until
2037-12-31