ILO Home
Volver a la página de entrada
Site map | Contact us English | Français

Base de datos CISDOC

ID (ISN) del documento62816
Número CIS 94-1258
ISSN - Título de la serie 0025-7818 - Medicina del lavoro
Año 1993
Número de serie
Autor(es) Gratton I., Piccoli B., Pierini F., Bergamaschi A.
Título Medium-term variations of visual function in VDT operators - Observation of 70 cases
Título original Variazioni a medio termine della funzionalità visiva in operatori VDT - Osservazioni di 70 casi [en italiano]
Información bibliográfica Nov.-Dec. 1993, Vol.84, No.6, p.482-486. 13 ref.
Resumen The aim of the study was to evaluate medium-term variations of visual functions in 70 VDT operators in function of their VDT exposure. Clinical records of the operators were reviewed in order to evaluate the variation of visual parameters (refraction, phorias, fusional convergence and divergence, stereopsis) after a 2yr follow-up. Subjects affected by hyperopia, large ametropias, or binocular vision disturbances were excluded from the study. The operators were divided into two subgroups: low exposures (n=20; <4h/day) and high exposures (n=50; >4h/day). Asthenopia was frequent in both groups. Variation of refraction and binocular vision parameters was absent or rather limited in both groups. This indicates that in subjects without significant ophthalmological problems the risk of permanent functional damage is very low at medium-term.
Descriptores (primarios) pantallas de visualización; trastornos de la función visual
Descriptores (secundarios) estudio transversal; astenopía
Tipo de documento D - Artículos periódicos
País / Estado o ProvinciaItalia
Tema(s) Iluminación, color, visión
Broad subject area(s) Industrias y ocupaciones
Navegación por categoria(s) Office work
Visual display terminals (VDTs)
Diseases of the eye and vision damage