Testing for glaucoma with the spatial frequency doubling illusion

Ted Maddess; Ivan Goldberg; Jeffrey Dobinson; Stephen Wine; Alan H. Welsh; Andrew C. James

doi:10.1016/S0042-6989(99)00135-2

Testing for glaucoma with the spatial frequency doubling illusion

Ted Maddess^*, Ivan Goldberg, Jeffrey Dobinson, Stephen Wine, Alan H. Welsh, Andrew C. James

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

88 Citations (Scopus)

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. Copyright (C) 1999 Elsevier Science Ltd.

Original language	English
Pages (from-to)	4258-4273
Number of pages	16
Journal	Vision Research
Volume	39
Issue number	25
DOIs	https://doi.org/10.1016/S0042-6989(99)00135-2
Publication status	Published - Dec 1999

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title = "Testing for glaucoma with the spatial frequency doubling illusion",

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AU - Welsh, Alan H.

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AB - 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. Copyright (C) 1999 Elsevier Science Ltd.

KW - Frequency-doubling

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Testing for glaucoma with the spatial frequency doubling illusion

Abstract

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