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Ability of the D-15 panel tests and HRR pseudoisochromatic plates to predict performance in naming VDT colors

Published online by Cambridge University Press:  05 April 2005

SHANKARAN RAMASWAMY  and
JEFFERY K. HOVIS
SHANKARAN RAMASWAMY
Affiliation:
School of Optometry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
JEFFERY K. HOVIS
Affiliation:
School of Optometry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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Abstract

Color codes in VDT displays often contain sets of colors that are confusing to individuals with color-vision deficiencies. The purpose of this study is to determine whether individuals with color-vision deficiencies (color defectives) can perform as well as individuals without color-vision deficiencies (color normals) on a colored VDT display used in the railway industry and to determine whether clinical color-vision tests can predict their performance. Of the 52 color defectives, 58% failed the VDT test. The kappa coefficients of agreement for the Farnsworth D-15, Adams desaturated D-15, and Richmond 3rd Edition HRR PIC diagnostic plates were significantly greater than chance. In particular, the D-15 tests have a high probability of predicting who fails the practical test. However, all three tests had an unacceptably high false-negative rate (9.5–35%); so that a practical test is still needed.

Keywords

VDT color-vision testD-15Adams D-15Richmond HRR pseudoisochromatic plate testColor namingColor-vision standards
Type
Research Article
Information
Visual Neuroscience , Volume 21 , Issue 3 , May 2004 , pp. 455 - 460
Copyright
© 2004 Cambridge University Press

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References

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