Udo H, Tanida H, Itani T, Otani T, Yokota Y, Udo A, Omoto Y, Tuboya A, Yokoi Y
Department of Public Health, Hiroshima University, School of Medicine, Japan.
J Hum Ergol (Tokyo). 1991 Dec;20(2):109-21.
In the Japanese newspaper industry, since the late 1970s, computerization has been started in large scale. The system, called Computerized Typesetting System (CTS), has been introduced. With this system, all information in the newspaper is input into a computer, called up on a cathode ray display (CRT) to edit, and then output to film or printing plates by CTS. Thus, the work of newspaper production has undergone a major transformation from industrial work to clerical work. It was reported that newspaper production staff working with VDTs complained more than staff working with the older key system about visual and physical problems which affected their job and their daily life. The complaint rates were highest for editors, who used VDT constantly throughout the day. This study was performed to clarify the health impact of VDT use and to prevent health disorders caused by the introduction of CTS. It is concluded that 5 m corrected vision and sphere refraction of CTS workers who used CTS over 2 or 4 hr daily, significantly became worse in a year after the introduction. Therefore, it is indicated that the control of CTS work time is important to prevent the visual disorder.
在日本报业，自20世纪70年代末以来，计算机化已大规模启动。一种名为计算机排版系统（CTS）的系统被引入。借助该系统，报纸上的所有信息都被输入到一台计算机中，在阴极射线显示器（CRT）上调用以进行编辑，然后通过CTS输出到胶片或印版上。因此，报纸生产工作经历了从工业工作到文职工作的重大转变。据报道，使用视频显示终端（VDT）的报纸生产人员比使用旧的按键系统的人员更多地抱怨影响其工作和日常生活的视觉和身体问题。编辑的抱怨率最高，他们整天都在持续使用VDT。进行这项研究是为了阐明使用VDT对健康的影响，并预防因引入CTS而导致的健康问题。得出的结论是，每天使用CTS超过2小时或4小时的CTS工作人员，在引入CTS一年后，其5米矫正视力和球镜屈光度显著变差。因此，表明控制CTS工作时间对于预防视觉障碍很重要。
