Korean J Dermatol.  1982 Feb;20(1):29-33.

Experimental Reproduction of Skin Lesions on Polymorphous Light Eruption

• Sung KJ
• Lee JH
• Park KC
• Kim WS

Abstract

It has been proposed that action spectrum in polymorphous light eruption lies predominantly in the sunburn range, but reaches through the long-wave ultraviolet (UV) into visible part of the spectrum. We examined the efficacy of UUB, UVA and visible light in reproducing skin lesions, and found that the UVA was most suitable in provoking the typical skin lesions in our 3 cases with polymorphous light eruption, Plewig and his associates reproduced the clinical lesions with megadoses of UVA,(60J/cm2); in our experiment, 5 to 10 J/cm2 was sufficient. The reason for this discrepancy is not clear but the method of phototest, light source and energy, the different susceptibility in different races and other factors may influence the phototest results.