Screen‐based color vision test for digital quantification of deutan color defects using a color‐calibrated monitor

Abstract

Display technologies are used in various industries. However, few studies on color vision testing using self‐luminous displays are reported. In this study, a screen‐based color vision test, termed the digital color vision test (DCVT), is developed on a color‐calibrated monitor. A control bar is adjusted by the observer to build just noticeable chromatic difference ellipses in CIE u′v′ chromaticity diagram, which indicate the capabilities of subjects' color visions. Ten color‐normal observers and 13 deutan observers participated in the psychophysical experiments. The observers also performed the other two typical diagnostic tests (D‐15 and anomaloscope). Results from the experiment using the adjustment psychophysical method for digital quantification of deutan color vision defects are presented. It is found that the diagnosis accuracy of the DCVT is approximately equivalent to those of D‐15 and anomaloscope tests.

Efficacy of color discrimination tests used in dentistry

“…The color accuracy of the monitor is crucial for the validation of a screen‐based color vision test and such methodology has been used by studies 40‐42 on psychophysical aspects of color in dentistry. In addition, it has been reported similar diagnosis accuracy between a gold standard anomaloscope test and a screen‐based color vision test using a color calibrated monitor 43 . Therefore, the computer‐version for I test should only be performed by observers in a color‐calibrated monitor, which was the case for the present study.…”