Description

Comes complete with a contemporary storage pouch. When the patient replaces the caps, the tube is turned over to reveal a transparent plastic bottom, allowing the numbers to be clearly visible to facilitate quick, accurate scoring.

The evaluation of the patient’s arrangement differentiates normal color perception from congenital or acquired moderate and strong defects in deutan (green and green weak blindness), protan (red blindness), or tritan (blue-yellow blindness) color discrimination. Based on the mistakes, the type of color blindness and its severity can be calculated. The tests can be used for occupational evaluation and classification.

The long-standing, very familiar D-15 Color Test Hue consists of a set of 16 different-colored papers affixed to the tops of numbered caps. Each cap has a 1.2 cm circular disk of colored paper. The Farnsworth-Munsell color system is used. A reference cap for each set is marked. Also included are instructions, a score sheet, a pair of cotton gloves, and “C” Daylight Glasses.  These glasses have special filters that transform normal incandescent light to “Illuminant C” type illumination, the proper light setting for the administration of color tests.