Ultraviolet a Radiation and The Need for Protection

Author:

Bissonnette Robert1,Claveau Joel1,Gupta Aditya K.1

Affiliation:

1. From Innovaderm Research Inc, Montréal, PQ; Centre Hospitalier Universitaire de Québec, Service de Dermatologie, Pavillon-Hôtel-Dieu de Québec, Québec, PQ; Division of Dermatology, Department of Medicine, Sunnybrook and Women's College Health Sciences Centre (Sunnybrook Site); Department of Dermatology, University of Toronto, Toronto, ON; and Mediprobe Research Inc., London, ON

Abstract

Erythema is a readily visible, often painful, natural phenomenon indicative of prolonged cutaneous exposure to ultraviolet (UV) radiation in the UVB range. As a result, early sunscreens were designed to provide adequate protection from UVB radiation. However, the continuous rise in the melanoma incidence rate alludes to the existence of an established photocarcinogen from which we are not well protected. Recently, scientists have been evaluating the photodamaging effects caused by wavelengths other than UVB. They have presented evidence that suggests that UVA exposure poses a greater hazard than previously acknowledged. For this reason, more emphasis must be placed on the development of broad-spectrum sunscreens providing adequate UVA and UVB protection. Additionally, regular sunscreen application must be advocated, proactive sun-protective practices must be implemented, and greater public awareness of the harmful effects of UVA and UVB radiation must be improved on, with the hope of decreasing the rate of cutaneous malignant melanoma.

Publisher

SAGE Publications

Subject

Dermatology,Surgery

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