Ideal for commercial/industrial color screening. Tests for protan and deutan defects. Patients must identify numbers or patterns formed in a matrix of small colored dots varying in color and intensity.
from Keeler Instruments Inc. for Ishihara Color Vision Test
Original Ishihara Color Test 14-Plate from Stereo Optical Company, Inc.
Original Ishihara Color Test 24-Plate from Stereo Optical Company, Inc.
Original Ishihara Color Test 38-Plate from Stereo Optical Company, Inc.