The point of fixation during visual display terminal (VDT) work was analyzed by using Eye Mark Recorder-NAC with their corneal reflexes. The subjects were categorized into 2 groups, expert VDT worker and non-expert with VDT work. As for the VDT task, Japanese sentences were loaded. On the other hand, ordinary desk work copying was loaded using the same Japanese sentences. The following results were obtained. VDT work needed more complex eye movements in both vertical and horizontal directions compared with desk work. The point of fixation was mainly located on the surface of the oscilloscope in the expert subjects, whereas, it was mainly located on the keyboard in non-expert subjects. In analyzing the velocity of eye movements during VDT work, the expert moved the eyes more slowly than the non-expert. These results suggested that the VDT experts can move their eyes more effectively and slowly.
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