Abstract
Subjective experiments were conducted using 15 college aged subjects in order to evaluate subjects' eye comfort, performance and fatigue. Five conditions, varying humidity level, illuminance level and local velocity level, were examined. People were exposed in a climate chamber, performing 3 kinds of task: 1) Short-term memory task, 2) Vigilance task, 3)Visual recognition and reaction task. Subjects reported greater eye dryness, eye discomfort and eye fatigue at low humidity with local velocity than other conditions. Subjective break up time was significantly shorter under the 30%RH condition with local velocity. Female reported greater eye dryness, eye discomfort and eye fatigue than male.