Farnsworth Munsell Dichotomous D15 Test is a two-minute screening for extreme cases of common color vision defects: red (protan), green (deutan) or yellow (tritan) color confusion
Here's how it works...
First,
you'll need a controlled daylight light source such as a SpectraLight® or Judge® color viewing booth.
Then,
you arrange one tray of 15 colored caps in hue order. There's
a predetermined sequence for each tray. If you
arrange them in the correct order, then you have normal color perception. Anything
other than a perfect score indicates a color discrimination problem. But it
doesn't mean you can't match color.
That's
why you need the Farnsworth Munsell 100 Hue Test. It determines
the degree of color confusion in addition to screening for these common color vision deficiencies.
Who uses the Farnsworth Munsell Dichotomous D15 Hue Test?
The
Farnsworth
Munsell Dichotomous D15 Hue Test
is used by medical and research facilities to indicate medicinal
toxicity and other medical conditions.
It's becoming increasingly more popular
in high tech industries including safety and security, where good color vision is necessary for ID systems. | 
