4.7.2 Visual Displays and Radiation
Description
This article is from the Vision and Eye Care FAQ, by grants@research.canon.com.au (Grant Sayer) with numerous contributions by others.
4.7.2 Visual Displays and Radiation
From the Journal of Theoretical Biology 1986, 122, 491-492 as a letter
to the editor from Liden, Bergqvist and Wennersten they comment that
the CRT worker has less exposure to UV-A than other office workers. The
details of the radiation levels are given below
UV-A Detector's Direction UV-A (W/m^2, mean) Towards the screen at 60cm distance 0.03 Towards the ceiling (VDT operators) 0.04 Towards the ceiling (other office workers) 0.13
The author's conclusions were that UV-A emmission from VDT's is very low
and can not be of biological relevance in comparison to normal UV-A exposure.
Also that VDT work and health is a multi-factorial problem and that a
common single-factor explaination of ill health during VDT use is not viable
In another paper -
Elliot G., Gies P., Joyner K.H, and Roy C.R. "Electromagnetic radiation
emmissions from video display terminals (VDTS)", Clinical and Experimental
Optometry 69.2: MArch 1986, pp53-61.
- report that there is no ocular hazard from the RF emmissions from VDTs.
Also that VDTs emit no UV radiation below 350nm.
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