实验研究和现场调查视屏显示终端(VDT)对操作者视功能的影响。发现VDT作业可致视力下降,工作时间愈长愈严重,负像作业比正像作业引起视力下降更甚,休息可使视力诙复。提示VDT对操作视功能影响是暂时性的功能性变化。但是视力下降和恢复受多种因素影响。因此,采取预防措施应综合考虑。 Experimental studies and field surveys show the impact of terminal (VDT) on operator visual function. Found that VDT homework can cause decreased vision, longer working hours, the more serious, negative jobs like just as homework caused by visual loss even worse, rest can make eyewitness. Tip VDT on the visual function of the operation is a temporary functional change. However, vision loss and recovery are affected by many factors. Therefore, precautions should be taken into consideration.