[The evaluation of workplace visual characteristics and ophthalmologic requirements to define fitness to work].

It's necessary to proceed to an evaluation of visual function to define principal ophthalmologic requirements and fitness to work in relation of workplace characteristics. We also have to consider the effects of age on visual function, the specific work risks on eyes and sight care especially for near sight. The evaluation of these parameters permits to verify the compatibility between the psychophysics characteristics of workers and the requests of tasks and then to define fitness to its work. Moreover to the visual functions we have to consider organic visual conditions like conjunctivitis, blepharitis, stenosis of lacrimal gland, dacriocystitis, retinic diseases, muscular motility alteration of the eyes, glaucoma. Our study shows the relation between ophthalmologic requirements of workers and some job groups like professional drivers, technical clerks, precision work, height level workers and proposes a standard method to define fitness to work. Our standard method permits a specific and homogeneous evaluation of fitness to work.