Comparison between White Housing and Black Housing Display on Eye Fatigue in VDT Work

Abstract

The purpose of this study is to clarify whether there is much eye fatigue with a white housing display or with a black housing display used in VDT work through an objective inspection using the near-point ruler and sensory tests. Thirty participants consisting of graduate and undergraduate students as the subjects were inspected in the VDT work using a white background of the display. The following results were obtained: First, from the fluctuation rate of the near-point distance before and after the VDT activity, there was more eye fatigue when using the black housing display than with the white housing. Second, in the sensory tests on eye-ache and headache, the progressions of subjective symptoms about eye-ache were larger when using a black housing display than the white housing one. Third, many subjects replied that they thought less eye fatigue to be when using the black housing display before this study's inspection. Their responses were the reverse of this study's inspection results.