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Arthritis Rheum. 1992 Aug;35(8):949-52.

Fluorescent light photosensitivity in patients with systemic lupus erythematosus.

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  • 1Department of Medicine, Louisiana State University Medical Center, New Orleans 70112.

Abstract

OBJECTIVE:

To determine the prevalence of fluorescent light toxicity in patients with systemic lupus erythematosus (SLE).

METHODS:

SLE patients were polled about their symptomatic responses to sunlight and cool white fluorescent light. Photometry was used to determine the levels of ultraviolet (UV) emissions from fluorescent lamps.

RESULTS:

Thirteen of 30 photosensitive SLE patients described increases in disease activity following exposure to unshielded fluorescent lamps. Photometry indicated that these lamps emit substantial levels of UV-B (280-320 nm) radiation, which is toxic to patients with SLE. Standard acrylic diffusers absorbed this radiation, and their use was associated with almost no patient-reported problems.

CONCLUSION:

Fluorescent lamps, emitting UV-B radiation, induce disease activity in photosensitive SLE patients. Standard acrylic diffusers absorb UV-B radiation and appear to be protective against induction of disease activity with the use of fluorescent lamps.

Comment in

PMID:
1642660
[PubMed - indexed for MEDLINE]
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