Comparison of the Farnsworth-Munsell 100-Hue, the Farnsworth D-15, and the L'Anthony D-15 desaturated color tests
C. J. Bassi, J. C. Galanis and J. Hoffman
University of Missouri-St Louis School of Optometry 63121.
OBJECTIVE--The Farnsworth-Munsell 100-Hue, the Farnsworth D-15, and the
L'Anthony D-15 desaturated color tests were administered to patients with
glaucoma to determine whether the D-15 or D-15 desaturated color tests
could be used to predict performance on the 100-Hue test in clinical
populations. METHODS--The three color tests were administered to 35
patients with glaucoma. The results were analyzed using the method of
Vingrys and King-Smith that calculates an angle (type of color loss) score,
S-index (measure of the randomness of cap arrangement), and a C-index (a
measure of the severity of color loss) based on the cap arrangement.
RESULTS--The 100-Hue error score was significantly related to the D-15 and
D-15 desaturated C-indexes. Furthermore, the 100-Hue S-index could be
predicted from the D-15 or D-15 desaturated S-indexes. The 100-Hue angle
could not be predicted from the D-15 or D-15 desaturated color tests.
CONCLUSIONS--The D-15 desaturated color test (which requires significantly
less time to administer) may be used to assess the severity of color vision
deficit in some patient populations.
