The file contains correspondence relating to the health of individuals who work with lasers, with particular reference in one case to poor eyesight. There is further correspondence surrounding the rules and regulations for people working with lasers and the appropriate medical supervision. There are reports on the safe use of lasers and the medical supervision of personnel using lasers, as well as a code of practice for lasers and a draft code of practice for the protection of person exposed to laser radiation in universities from 1973. There are a significant number of copies of blood count result cards for a number of workers largely but not entirely from the Department of Physics.
The file also contains a number of press cuttings and journal articles relating to the effect of lasers and radiation more generally.