Margaret A.Winker, MDIndividualAuthorPhil B.FontanarosaMD, Senior EditorsIndividualAuthor
To the Editor: Dr West and colleagues1
demonstrate an association between light and cortical cataracts and the
attenuation of cataract development in persons who wear glasses. From
this they suggest that there is a causal relationship between UV-B
radiation and the development of cortical cataract, but I question
whether this is due just to UV-B. This term was developed by
dermatologists to define a specific wavelength range in the UV spectrum
(290-320 nm) that causes erythema of the skin. This distinguishes it
from UV-A (320-400 nm), which does not cause erythema.
Dillon J. Sunlight Exposure and Cataract. JAMA. 1999;281(3):229–230. doi:10-1001/pubs.JAMA-ISSN-0098-7484-281-3-jbk0120
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