Twenty-eight major skiing-mountaineering nonprescription sunglasses and goggles were analyzed for their optical transmittance in the range of 190nm to 860nm. Particular attention was paid to the erythermal ultraviolet range (280-320 nm) and to the near ultraviolet range (320-400nm). Several lenses were found that transmitted erythermal radiation. Most of the lenses transmitted near ultraviolet. The project includes a literature study of the effects of ultraviolet radiation.
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