Photobiology Unit, Department of Dermatology, Ninewells Hospital & Medical School, Dundee, UK.
Photodermatol Photoimmunol Photomed. 2011 Jun;27(3):131-7. doi: 10.1111/j.1600-0781.2011.00576.x.
BACKGROUND/PURPOSE: The incandescent electric light bulb has been in widespread use since the early part of the 20th century. There is now a strong move underway to improve lighting efficiency to cut carbon dioxide emissions. As a result, many countries have introduced legislation to phase out the use of incandescent bulbs, and these are largely being replaced with compact fluorescent lamps (CFLs). The rate at which CFLs are replacing the traditional bulbs has caused alarm among patients with light-sensitive skin disorders as there has been very little informed discussion regarding the safety of these new lamps for this group of patients. The purpose of the present paper is to review the available literature to assess the likely impact of CFLs on the skin of normal and photosensitive individuals.
All data sources were identified through searches of MEDLINE and a manual literature search.
The spectrum of light emitted by CFLs is different from incandescent light. In particular, some CFLs emit short wavelength UV radiation at 253.7 nm. Most published reports show that the short wavelengths can be eliminated by the use of a double envelope. There are very little data examining directly the risk to photosensitive individuals. In one study, a patient with chronic actinic dermatitis had a severe erythematous reaction from an exposure of only 2.5min' duration.
CFLs present a low level of risk to individuals of normal sensitivity but they are potentially harmful to photosensitive patients. We recommend the use of double envelope lamps, and consideration given to the adoption of a 'UV-safe' classification scheme.
背景/目的：白炽灯泡自 20 世纪初以来就被广泛使用。现在，为了提高照明效率以减少二氧化碳排放，一场提高照明效率的运动正在进行。因此，许多国家已经出台立法逐步淘汰白炽灯泡，而这些灯泡在很大程度上正在被紧凑型荧光灯（CFL）所取代。CFL 取代传统灯泡的速度引起了光敏感皮肤疾病患者的警惕，因为对于这组患者来说，几乎没有关于这些新灯安全性的知情讨论。本文的目的是回顾现有文献，评估 CFL 对正常和光敏感个体皮肤的可能影响。
通过 MEDLINE 搜索和手动文献搜索确定所有数据源。
CFL 发出的光谱与白炽灯光不同。特别是，一些 CFL 会在 253.7nm 处发出短波长的紫外线辐射。大多数已发表的报告表明，使用双层外壳可以消除短波长。很少有数据直接检查对光敏感个体的风险。在一项研究中，一名患有慢性光化性皮炎的患者仅在 2.5 分钟的暴露时间内就发生了严重的红斑反应。
CFL 对正常敏感人群的风险较低，但对光敏感患者可能有害。我们建议使用双层外壳灯，并考虑采用“UV 安全”分类方案。
