Being sensitive to and more effective in detecting visual fatigue than NP and CFF, involuntary eye movement is a new index for evaluating the visual fatigue of VDT operators.

• 固视运动对视觉疲劳反应敏感,疲劳的检出能力远远大于调节近点距离和闪烁融合频率,是评价VDT作业者视觉疲劳的新指标。