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Autoimmun Rev. 2009 Feb;8(4):320-4. doi: 10.1016/j.autrev.2008.10.003. Epub 2008 Nov 6.

The risk of ultraviolet radiation exposure from indoor lamps in lupus erythematosus.

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  • 1Philadelphia V.A. Hospital, Philadelphia, PA 19104, United States.


It is well known that ultraviolet radiation can exacerbate skin disease in patients with lupus erythematosus. While many patients are advised to avoid sunlight and artificial tanning, it is not clear how best to counsel patients regarding the use of indoor lamps. Indeed, many of the light bulbs commonly used in the home and workplace emit low-dose ultraviolet radiation. The irradiance is considerably lower than that of the sun, however the exposure time can last for hours and is typically repeated on a daily basis. Therefore, it is possible that this chronic exposure could ultimately result in a significant accumulation of damage.

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