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Evaluation of the efficacy of contrast sensitivity measures for the detection of primary open-angle glaucoma

Wood, Joanne M. & Lovie-Kitchin, Jan E. (1992) Evaluation of the efficacy of contrast sensitivity measures for the detection of primary open-angle glaucoma. Optometry and Vision Science, 69(3), pp. 175-181.

Abstract

We investigated the relative efficacy of contrast sensitivity (CS) measures for the identification of early primary open-angle glaucoma (POAG) patients. The contrast sensitivity function (CSF) was sampled at five spatial frequencies using a standard oscilloscope technique and measures of CS were also obtained using the Cambridge Gratings, Pelli-Robson CS Charts, Melbourne Edge Test (MET), and the High and Low Contrast Bailey-Lovie Letter Charts. Of the techniques evaluated, the High and Low Contrast Bailey-Lovie Letter Charts and the oscilloscope technique at the peak of the CSF exhibited the highest levels of sensitivity and specificity for differentiating between the POAG patients and normals. However, the relatively low levels of sensitivity and specificity obtained for the oscilloscope and chart tests overall indicate that, regardless of the pass/fail criterion selected, CS is unsuitable for screening for early POAG.

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ID Code: 5752
Item Type: Journal Article
Additional Information: Self-archiving of the author-version is not yet supported by this publisher. For more information, please refer to the journal’s website (see link) or contact the author. Author contact details: j.lovie-kitchin@qut.edu.au
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Keywords: contrast sensitivity, primary open, angle glaucoma, glaucoma, POAG
ISSN: 1538-9235
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 1992 Lippincott Williams & Wilkins
Deposited On: 08 Dec 2006
Last Modified: 15 Jan 2009 17:17

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