Sunscreens and the photodermatoses

Abstract

The photodermatoses are defined by their clinical features which result from exposure to ultraviolet radiation or visible light. Accurate diagnosis, which is often complicated, is essential to ensure appropriate treatment and protection from precipitating wavelengths. We review the acquired photodermatoses including polymorphic light eruption, hydroa vacciniforme and chronic actinic dermatitis. The genodermatoses including the DNA repair deficiency and melanin-deficient syndromes are discussed, and the best methods for protection of the cutaneous photodermatoses including relevant sunscreen use are elaborated.