title: Hypopigmentation Induced by Frequent Low-Fluence, Large-Spot-Size QS Nd:YAG Laser Treatments.
abstract: The Q-switched 1064-nm neodymium-doped yttrium aluminum garnet (QS 1064-nm Nd:YAG) laser is increasingly used for nonablative skin rejuvenation or "laser toning" for melasma. Multiple and frequent low-fluence, large-spot-size treatments are used to achieve laser toning, and these treatments are associated with the development of macular hypopigmentation as a complication. We present a case series of three patients who developed guttate hypomelanotic macules on the face after receiving laser toning treatment with QS 1064-nm Nd:YAG.
authors.affiliation: National Skin Centre, Singapore, Singapore.
authors.forename: Yisheng
authors.initials: Y
authors.lastname: Wong
authors.affiliation: National Skin Centre, Singapore, Singapore.
authors.forename: Siong See Joyce
authors.initials: SS
authors.lastname: Lee
authors.affiliation: National Skin Centre, Singapore, Singapore.
authors.forename: Chee Leok
authors.initials: CL
authors.lastname: Goh
keywords: Laser toning; Laser-induced hypopigmentation; QS 1064-nm Nd:YAG