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VDT（Visual Display Terminal）综合征，是指从事光学显示器终端（包括计算机终端显示器、阴极射线管、进行数据输入的键盘，以及电视机、电子游戏机之类）作业所引起一系列症候群。随着高科技时代的到来，现代电子技术正在迅速发展，有越来越多的人加入了从事VDT操作的行列。
VDT (Visual Display Terminal) syndrome refers to a series of syndromes caused by the operation of optical display terminals (including computer terminal displays, cathode ray tubes, data input keyboards, and television sets and video game machines). With the advent of the high-tech era, modern electronic technology is rapidly developing, more and more people have joined the ranks engaged in VDT operations.