Electromagnetic radiation with
wavelengths between 200
nanometers and 400 nanometers. Exposure to excessive UV radiation damages
DNA and can cause health problems such as
skin cancer and
macular degeneration,
cataracts, and
pterygia in the
eyes.
From the BioTech Dictionary at http://biotech.icmb.utexas.edu/. For further information see the BioTech homenode.