RT Journal A1 PATTON JM T1 THe protective value of certain special types of spectacle glass JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1929 FD October 19 VO 93 IS 16 SP 1190 OP 1193 DO 10.1001/jama.1929.02710160004002 UL http://dx.doi.org/10.1001/jama.1929.02710160004002 AB Before the materials and appliances proposed for protecting the eyeball and its appendages are considered, the real need for such protection should be made manifest. The ophthalmologist who serves an extensive industrial practice is reminded every day of its necessity and should see to it that both employer and worker are informed concerning the eye hazards of their particular industry and are thoroughly familiar with modern methods of prevention and protection. He can do much to insure safety measures and thereby reduce ocular trauma to a minimum.However, the ophthalmologist with the average clinical practice also has a responsibility to his clientele, to the extent at least that all who need special protection should be told of their danger and of the means available for securing relative safety.It is generally conceded that at least 90 per cent of all eye injuries due to external violence would be prevented by