Noé C, Pelletier-Aouizerate M, Cartier H
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Ann Dermatol Venereol. 2017 Apr;144(4):301-314. doi: 10.1016/j.annder.2016.10.009. Epub 2017 Jan 16.
The use in dermatology of light-emitting diodes (LEDs) continues to be surrounded by controversy. This is due mainly to poor knowledge of the physicochemical phases of a wide range of devices that are difficult to compare to one another, and also to divergences between irrefutable published evidence either at the level of in vitro studies or at the cellular level, and discordant clinical results in a variety of different indications: rejuvenation, acne, wound healing, leg ulcers, and cutaneous inflammatory or autoimmune processes. Therapeutic LEDs can emit wavelengths ranging from the ultraviolet, through visible light, to the near infrared (247-1300 nm), but only certain bands have so far demonstrated any real value. We feel certain that if this article remains factual, then readers will have a different, or at least more nuanced, opinion concerning the use of such LED devices in dermatology.
发光二极管（LED）在皮肤科的应用一直存在争议。这主要是因为人们对众多难以相互比较的设备的物理化学阶段了解不足，还因为在体外研究或细胞水平上无可辩驳的已发表证据与各种不同适应症（嫩肤、痤疮、伤口愈合、腿部溃疡以及皮肤炎症或自身免疫过程）中不一致的临床结果之间存在差异。治疗用LED可发出从紫外线到可见光再到近红外（247 - 1300纳米）的波长，但到目前为止只有某些波段显示出实际价值。我们确信，如果本文内容属实，那么读者对于此类LED设备在皮肤科的应用将会有不同的看法，或者至少会有更细致入微的观点。
