2017 Volume 19 Issue 1 Pages 99-116
We analyzed a data of annual special medical check-up for VDT work once in a year from 2007 to 2011. The subjects were the faculties and administrative staff in a teacher training university, and the school teachers affiliated to that university. We utilized an original self-administered survey slip and classified with the sexes, the working environments, and subjective symptoms. In particular, we focused the influence by changing the PC type of the office workers between 2007 and 2008. Similarly, we investigated the influence before and after the change of PC type of the school teachers between 2009 and 2011. We collected the subjects who got both medical check-ups for these years, and the influence on subjective symptoms (fatigue in eyes, stiff shoulders, and backache) was examined. As the result, fatigue in eyes was improved by changing the use from a laptop PC to a desktop PC. On the other hand, those were unclear for other symptoms. Our results suggest that the use of a desktop PC is preferable for the prevention of the fatigue in eyes, especially in the VDT work in an office.