Reproducibility of a new colour test.
OBJECTIVE
To evaluate the reproducibility of a new colour test, using the Chromatometer CM3.


METHODS
Twenty healthy subjects were recruited at the Department of Ophthalmology, at the Medical University of Vienna. A total of 40 eyes were tested. Both eyes were tested separately with the Chromatometer CM3. The colour test was repeated after several days. Each time, best-corrected visual acuity was tested using Snellen charts, and colour perception was tested using the Chromatometer CM3.


RESULTS
The Chromatometer CM3 showed reproducible results between the two tests at almost every luminosity level. All 4 green-red measurements and 2 blue-yellow brightness measurements showed reproducible results between the first and second tests.


CONCLUSIONS
The Chromatometer CM3 seems to be an appropriate method to detect changes in colour perception, although the red-green comparison appeared to be more precise than the blue-yellow comparison.
Department of Ophthalmology, Medical University of Vienna, Vienna, Austria.
Michael
M
Burgmüller
Berthold
B
Pemp
Roman
R
Dunavölgyi
Stefan
S
Sacu
Wolf
W
Buehl
D003118:Color Perception / Q000502:physiology*; D003119:Color Perception Tests / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D015203:Reproducibility of Results; D014792:Visual Acuity / Q000502:physiology; D055815:Young Adult