Your article suggests that jobs requiring long hours of exposure to VDTs might result in cataracts. But according to a 1983 report published by the American Academy of Ophthalmology: "No scientific evidence was found to link vision damage with the use of VDTs, according to a two-year study by the National Research Council. The academy's information statement says the academy considers VDTs to be safe for normal use and to present no hazard to vision. . . . Less radiation is found in VDTs than from common fluorescent lights, sunshine, and other natural gas man-made sources."
While the health effects of VDTs are still a matter of scientific dispute, a number of studies do link VDTs with cataracts and birth defects. Those studies have raised the concerns that, in turn, have prompted the drive for legislation.