Journal
JOURNAL OF THE AMERICAN ACADEMY OF DERMATOLOGY
Volume 89, Issue 3, Pages 560-568Publisher
MOSBY-ELSEVIER
DOI: 10.1016/j.jaad.2020.03.115
Keywords
antioxidants; blue light; iron oxide; melasma; pigmentation; postinflammatory hyperpigmen-tation; reactive oxygen species; sunscreen; ultraviolet light; visible light
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Visible light has been widely used in dermatology for various cosmetic and medical purposes. Recent studies have shown that visible light can cause erythema and pigmentary changes, leading to concerns about its potential harmful effects. This article provides an evidence-based review on the role of visible light in dermatologic diseases, particularly hyperpigmentation disorders like melasma and postinflammatory hyperpigmentation. (J Am Acad Dermatol 2023;89:560-8.)
Visible light has been used therapeutically in dermatology for years for a variety of cosmetic and medical indications, including skin rejuvenation and the treatment of inflammatory and neoplastic conditions, among others. Until recently, visible light was thought to be relatively inert compared to its spectral neighbors, ultraviolet and infrared radiation. However, recent literature has described the ability of visible light to cause erythema in light skin and pigmentary changes in individuals with darker skin types. Concern surrounding its potentially damaging cutaneous effects has been raised in both the medical community and social media outlets. In this article, we provide an evidenced-based review describing what is currently known about visible light, focusing on its role in dermatologic diseases including disorders of hyperpigmentation such as melasma and postinflammatory hyperpigmentation. ( J Am Acad Dermatol 2023;89:560-8.)
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