Summary
The phenomenon of photorecovery was investigated in human skin. The effect of irradiation of human skin with shortwave ultraviolet radiation is reduced by subsequent or simultaneous exposure to UV-A. This could be demonstrated by exposing the skin to the full light from fluorescent sunlamps (UV-B) followed by or simultaneously exposed to the full light from fluorescent UV-A lamps. Photorecovery could also be demonstrated by exposing the skin to the radiation from germicidal lamps (UV-C) supplemented by fluorescent UV-A lamps.
Exposing the skin to UV-A prior to UV-C shows a normal addition of the erythematogenic effects of UV-A and UV-C. The exposure of the skin to UV-A prior to UV-B suggests however that there is a slight reinforced addition or augmentation.
The phenomenon of photorecovery could not only be demonstrated in the case of UV-erythema, but also in UV-B induced tolerance of the skin to light; the development of such tolerance, too, was reduced if the exposure to UV-B was followed by UV-A.
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References
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© 1980 Springer-Verlag Berlin Heidelberg
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van Weelden, H. (1980). Photorecovery in Human Skin. In: Pratesi, R., Sacchi, C.A. (eds) Lasers in Photomedicine and Photobiology. Springer Series in Optical Sciences, vol 22. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-38270-6_17
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DOI: https://doi.org/10.1007/978-3-540-38270-6_17
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-662-13499-3
Online ISBN: 978-3-540-38270-6
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