Some considerations regarding the use of protective lenses in computer activities

Abstract

Spectral analyzes of radiation harmful to human health over time have highlighted the wavelength components of the spectrum of compound white light (sunlight) that contributes to the deterioration of the visual health of human eyes. Extensive research of national or international research centers has led to the design of constructive variants of visual protection systems presented and developed through specific patents by companies producing such devices. Starting from these general considerations, in this paper are presented some aspects regarding the use, in the activities carried out daily on the computer, of the goggles of protection glasses to the blue and ultraviolet radiation and not only. In the first part of the paper are analyzed the effects on the components of the visual system regarding the penetration of ultraviolet (UV) type A and B radiation in the eyeball, radiation harmful to visual health. In the second part of the paper are proposed working hypotheses for the development of a system for evaluating (measuring) the degree of protection of spectacle lenses in the case of using blue and UV radiation in computer activities. In the final part of the paper are presented the observations and conclusions of the use of these fundamental principles of construction of an evaluation-measurement system and the implementation methods in current practice in specialized offices.