ロービジョンの視覚特性(<特集>社会福祉を支える照明技術)

概要

論文の詳細を見る
The following visual functions of low vision were outlined: Contrast sensitivity function (CSF), Color similarity. and minimum legible letter size. In general, data of low vision were widely distributed. The median curve's peak contrast sensitivity is at about 0.2〜0.6cpd, which is much lower than the averaged values of young unimpaired subjects. The span of similarity of colors was broader in low vision patients under both lighting conditions. It was greater under dark conditions. In case of legible letter size, the gothic-type font is apparently more legible than the plain one. In addition, the negative font (white characters on a black background) is more legible than the positive one.
2010-03-01