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Published on: February 15, 2020
The effects of ultraviolet-A radiation on visual evoked potentials in the young human eye
B E Sanford1, S Beacham, J P Hanifin
1Department of Neurology, Jefferson Medical College, Philadelphia, USA.
Abstract:
A recent study from this laboratory using visual evoked potentials (VEPs) demonstrated that children's eyes are capable of detecting ultraviolet radiation. The aim of this study was to compare dose-response relationships in two age groups, 6-10 years (n = 10) and 20-25 years (n = 10). Under photopic viewing conditions (550 lux), exposures of monochromatic UV-A (339 nm) and visible radiation (502 nm) were correlated to VEPs. The results demonstrate that monochromatic UV-A can elicit age and dose dependent responses in the human visual system, suggesting that the eyes of children are more responsive to UV stimuli than the eyes of young adults.
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