color vision
chromatic vision
trichromacy

They held one another, Sec looking down to green eyes that with his poor color vision seemed brown.

This person at least was possessed of full color vision.

He passed a physical exam, including a test of color vision.

They see a difference between being able to pass the test and having adequate color vision.

Green, rather; Melody was not yet precise about color vision.

This section describes ways in which human color vision can be modeled.

An earlier study showed very significant improvements in color vision and patient satisfaction.

In regard to color vision we have as yet no reliable information concerning children under two years of age.

Rods deal with low light level and do not mediate color vision.

A lens for better color vision is in development (shown here next to a dime).