[Aspects of industrial hygiene in occupational exposure to the hazards of laser light].

The AA. outline the environmental hazards by the laser light taking into account the characteristics of this stimulated emission and the properties of the biological substrate to be damaged. They illustrate the optical and functional behaviour of the eye in order to demonstrate the peculiarities which make it the most important "critical organ" as regards the laser light. They furthermore propose some criteria for the analysis and the registration of the data necessary to individuate the hazards. They indicate the industrial hygiene measures to be adopted in the different exposure conditions and point out some aspects apt to individuate the levels for minimal reactive dose from which it is possible to define the threshold limit values. They conclude with the proposal to normalize as much as possible the rules of hygienistic protection in this new technological field.