Color Inspection Tables for Estimating Degree of Color-Defective Vision

In this study, we propose color inspection tables that detect a degree of color weakness. Hereafter, a creating method of color inspection tables will be described. Firstly, we find two colors that cannot be discerned by the color-defective vision and can be discerned by the normal vision. Secondly, we create a color inspection table consisting of 8 patches using the confused two colors. We make 7 patches with the first color and 1 patch with the second color. Here, we should consider the display order of the color inspection tables so as not to affect the results by the recency effect. The collaborators in the experiment select one different color patch from the color inspection table displayed on the monitor. Three color inspection tables are used to detect the degree of color weakness in 10 experiment collaborators. From the experimental results, it is confirmed that the color inspection tables can measure the degree of color-defective vision.