Photodamage, Part 1: Pathophysiology, clinical manifestations, and photoprotection

Sonal Choudhary, Jennifer Carol Tang, Angel Leiva, Keyvan Nouri

Research output: Contribution to journalArticle

Abstract

Photodamage is defined as changes in the skin that occur after prolonged exposure to solar irradiation. Photoaging is one of the results seen with photodamage, which is an alteration in the skin caused by sun exposure resembling the effects of age. Skin cancers are at the other end of the spectrum of photodamage. UV radiation (UVR) is the common entity that contributes to both. The derangements in the epidermis and dermis mainly are attributable to collagen degradation and remodeling. These biologic processes translate to the clinical manifestations of photodamage, including wrinkles, decreased skin elasticity, hyperpigmentation, telangiectasias, actinic keratoses (AKs), and neoplasms. Sunscreens and antioxidants are photoprotective agents that aim to minimize the effects of UVR. The therapeutic modalities for the management of photodamage include topical agents, mechanical exfoliation, and laser therapies. Topical remedies such as retinoids, a-hydroxy acids, and antioxidants commonly are used today. There is a wide gamut of laser and light devices, such as ablative lasers, nonablative lasers, fractional lasers, and radiofrequency ablation. In this review article, we discuss the different aspects of photodamage with a focus on photoaging, the possible mechanisms, and the available modalities of prevention and management. Copyright Cosmetic Dermatology 2010.

Original languageEnglish
Pages (from-to)460-466
Number of pages7
JournalCosmetic Dermatology
Volume23
Issue number10
StatePublished - Oct 1 2010

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Lasers
Laser Therapy
Skin
Antioxidants
Actinic Keratosis
Sunscreening Agents
Telangiectasis
Hyperpigmentation
Hydroxy Acids
Radiation Effects
Retinoids
Elasticity
Skin Neoplasms
Solar System
Dermis
Epidermis
Collagen
Radiation
Light
Equipment and Supplies

ASJC Scopus subject areas

  • Dermatology
  • Surgery

Cite this

Photodamage, Part 1 : Pathophysiology, clinical manifestations, and photoprotection. / Choudhary, Sonal; Tang, Jennifer Carol; Leiva, Angel; Nouri, Keyvan.

In: Cosmetic Dermatology, Vol. 23, No. 10, 01.10.2010, p. 460-466.

Research output: Contribution to journalArticle

Choudhary, Sonal ; Tang, Jennifer Carol ; Leiva, Angel ; Nouri, Keyvan. / Photodamage, Part 1 : Pathophysiology, clinical manifestations, and photoprotection. In: Cosmetic Dermatology. 2010 ; Vol. 23, No. 10. pp. 460-466.
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