video display terminal (VDT) [L, videre, to see, displicare, to scatter, terminus, end] , a cathode-ray tube device with a surface similar to a television screen, used in word processors, computer terminals, and similar equipment. Use of video display terminals has been associated with a variety of environmental health complaints, including burning and itching eyes, headaches, and back and arm pain. Published studies indicate that the health effects are caused by inadequate or improper office environments, such as unsuitable furniture or light levels, rather than VDT radiation.
