Use of video display terminals (VDTs) expected to dramatically increase.
This clinical study was performed to examine the moderate-to-advanced ametropic presbyopic VDT user to determine the most prevalent visual or physical symptoms incurred while working at a VDT, and to develop a comparative benefit analysis of two currently available occupational lens designs.
Twenty-four symptomatic VDT users who were currently wearing a non-occupational lens design were selected from a pool of 100 applicants.
The nonoccupational lens distribution included 17 bifocals, 3 trifocals, and 4 progressives lenses.
The subjects compared two occupational lens designs.
Statistical analyses indicated that the frequency and severity of seven of 10 symptoms reported were significantly reduced by wearing the occupational lenses, including the three most frequently reported pre-existing symptoms of neck/shoulder aches, eyestrain, and blurred intermediate vision.
Study results suggest that symptomatic moderate-to-advanced ametropic presbyopic VDT users may benefit from an occupational progressive lens when work involves prolonged or exclusive viewing of a VDT screen.
An occupational trifocal may benefit VDT users also required to perform other viewing tasks.
Mots-clés Pascal : Presbytie, Terminal, Console visualisation, Technique vidéo, Utilisateur, Lentille puissance progressive, Lentille multifocale, Médecine travail, Trouble vision, Douleur, Cou, Epaule, Traitement instrumental, Homme, Oeil pathologie, Trouble réfraction oculaire, Système ostéoarticulaire pathologie
Mots-clés Pascal anglais : Presbyopia, Terminal, Display console, Video technique, User, Progressive power lens, Multifocal lens, Occupational medicine, Vision disorder, Pain, Neck, Shoulder, Instrumentation therapy, Human, Eye disease, Refractive error, Diseases of the osteoarticular system
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0450555
Code Inist : 002B26B. Création : 03/02/1998.