In the present days, information society has so rapidly extended that not only young people but also the elderly have to use the Internet to exchange and acquire information. One of the most popular internet services is WWW that is typical visual media. Human visual characteristics, however, change due to age-related clouding of the eye lens. Therefore, it is very likely that aged people overlook important information of web sites when the change of human visibility is ignored. In this report, the silent reading time, the gaze duration and the saccade were calculated using point-of-regard measurement for evaluating legibility of the Web site. As the results, the silent reading time and the gaze duration were extended and the saccade was shortened, when the contrast between characters and a background decreased. Moreover, it was shown that the contrast has a greater influence on negative coloration than positive coloration. These results indicate that the oculomotor analysis is useful to evaluate the web legibility.
