Fig. 15. Protective devices against optical radiation hazards, such as electric arc welding. A. ANSI Z87.1 recommended hand-held welding helmet (left) and equivalent Huntsman/Redman Company hand-held welding helmet (right). B. ANSI Z87.1 recommended welding helmet with stationary window (left) and equivalent Uvex Reflex K200 (right). C. ANSI Z87.1 recommended welding helmet with lift front (left) and equivalent Uvex Reflex K210 (right). (ANSI types from American Society for Safety Engineers. American National Safety Standard Practice for Occupational and Educational Eye and Face Protection. Des Plaines, IL: American Society for Safety Engineers, 1998. A courtesy of Huntsman/Redman Company. B and C courtesy of Uvex Safety, Smithfield, RI. From Blais BR. Basics of industrial ophthalmology. Ophthalmol Clin North Am 13:308–343, 2000.)