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Ocular protection from ultraviolet radiation

Ultraviolet radiation (UVR) is potentially hazardous to the eye. Sources of UVR are becoming more common in industry and commerce and specialized eye protection is usually provided. For the outdoor worker and the general public the most hazardous source of UVR is the sun and sunglasses are the normal means of eye protection, although consumers are provided with little information about the protection afforded by them. The Standards Association of Australia has issued a standard which sets limits to the UV and visible transmittances of sunglasses. Although this standard applies only to sunglasses, the optical transmittances of over 200 pairs of sunglasses, lenses, prescription glasses, safety glasses and ski goggles were measured over the wavelength range from 250 to 800 nm. The results were compared with the standard and the degree of protection provided in the UV region (250–400 nm) was determined. The ocular UVR dose for the protected eye was calculated using measured solar spectral irradiances, the transmission characteristics of the eyewear and the biological spectral effectiveness of UVR. As a result of this study, it is recommended that protection against UV‐A radiation (315–400 nm) be increased.