Lack of Correlation Between the Location of Choroidal Melanoma and Ultraviolet-Radiation Dose Distribution. Laurent H. Schwartz, Regis Ferrand, Pierre-Yves Boelle, C. Maylin, François D’Hermies, and Jean Virmont, Service de Radiothérapie, AP-HP, Hopital Saint-Louis, 1 avenue Claude Vellefaux, 75010 Paris, France, telephone 01.42.49.97.87, fax 01.42.49.44.67
Ocular melanomas arise from the chloroid. The result of our study of a total of 92 ocular melanomas would indicate that there is no preferential location for tumors on the eye. We estimates the ultraviolet (UV) radiation dose distribution using data available in the literature. When then compared tumor location and UV-radiation. UVC and UVB do not reach the choroid and UVA is filtered by the cornea and the lens. Only a small percentage of the incoming rays reach the posterior and inferior part of retina, but none reach the superior and anterior part of the eye. We concluded that it is therefore very unlikely that UV-Radiation exposure is responsible for choroidal melanoma.
Go to . . .
1998 SRA-Europe Table of Contents
1998 SRA-Europe Author Index
Main Abstracts Menu Page
RiskWorld Home Page