Clear Lenses for Impact ProtectionĬlear polycarbonate lenses meet the American National Standards Institute (ANSI) Z87.1-1989 standard for industrial impact resistance and work best for indoor applications for which protection from splashes, sparks, or flying particles is necessary. While the type of protection you choose ultimately depends on your employees' work applications, the following is a general guide to the types of lenses and equipment available to protect welders from exposure to optical radiation. While pupillary reflex and shading of the eyes are natural reflexes to guard the eye from exposure, eye protection is still necessary to protect those who may accidentally be exposed to a welding arc.
Workers are at risk of welder's flash injury even when they are not involved directly in the welding process. IR light is fundamentally less damaging, but workers in blast furnace environments should be protected against exposure, which has been associated with chronic damage to the human lens. Exposure to UV light can lead to photokeratitis, a painful experience more commonly known as snow blindness or welder's flash. Sometimes damage occurs without the worker realizing it, because UV and IR radiation cannot be seen. 1Įxposure to UV and IR rays can damage the eyes and the skin. Arc welding and cutting, as well as laser welding, cutting, and brazing, can expose workers to this type of radiation. Radiant energy exposure, also called optical radiation, occurs with work applications that involve intense concentrations of ultraviolet (UV), infrared (IR), and intense visible light. The Dangers of Ultraviolet and Infrared Light
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