Ocular Exposure to Solar Ultraviolet and Visible Radiation at High Latitudes

Exposure of the eyes to ultraviolet (UV) radiation and short wavelength light, blue light, from the sun was assessed under realistic geometric conditions. A spectroradiometer with a double monochromator was used to determine the spectral irradiance at 1-nm intervals within the wavelength range of 25...

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Bibliographic Details
Published in:Scandinavian Journal of Work, Environment ＆ Health Environment ＆ Health, 1991-12, Vol.17 (6), p.398-403
Main Author: Hietanen, Maila
Format: Article
Language:English
Subjects:
Altitude
Biological and medical sciences
Eyes
Humans
Injuries of the orbit. Foreign bodies of the eye. Diseases due to physical agents
Irradiance
Light
Medical sciences
Occupational Diseases - etiology
Occupational Diseases - prevention & control
Radiation damage
Radiation Injuries - etiology
Radiation Injuries - prevention & control
Radiometry
Retina - radiation effects
Risk Factors
Seasons
Snow
Solar radiation
Sunlight - adverse effects
Traumas. Diseases due to physical agents
Ultraviolet radiation
Ultraviolet Rays - adverse effects
Ultraviolet reflection
Visible spectrum
Wavelengths
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Summary:Exposure of the eyes to ultraviolet (UV) radiation and short wavelength light, blue light, from the sun was assessed under realistic geometric conditions. A spectroradiometer with a double monochromator was used to determine the spectral irradiance at 1-nm intervals within the wavelength range of 250—800 nm. Biological weighting functions were used to calculate the blue-light radiance and the weighted UV irradiance. In addition, a photometer with a 1° angle of view was used to measure the ambient luminance. The results indicate that sizable amounts of UV radiation and blue light can be reflected from different environmental surroundings. Hence various groups of outdoor workers seem to be at risk of chronic ocular overexposure to solar radiation. When occupational exposure limits for UV and visible radiation are revised, the risks of chronic exposure should receive more consideration than to date.
ISSN:0355-3140
1795-990X
DOI:10.5271/sjweh.1687