Does using a visual display terminal damage vision? How about effects from long-term use?
A. Extensive research reveals no conclusive evidence linking VDTs with any eye disease or damage. Studies have measured the vision of users over several years and found no indication of visual impairment from long-term use. However, some users may experience discomfort, such as tired eyes or difficulty in focusing on faraway objects. This is temporary, and not harmful to the eyes. A National Institute for Occupational Safety and Health (NIOSHA) study stated that, “We did not find any significant association between VDT use (including hours per week of VDT operation and total years of VDT operating experience) and the prevalence of eye abnormalities, including cataracts.