Sliney D H
US Army Center for Health Promotion & Preventive Medicine, Aberdeen Proving Ground, Maryland, MD 21010-5403, USA.
J Photochem Photobiol B. 2001 Nov 15;64(2-3):166-75. doi: 10.1016/s1011-1344(01)00229-9.
Although most health scientists now agree that health risks to the skin (e.g., skin cancer) exist from exposure to the ultraviolet radiation in sunlight, a scientific consensus has not really been achieved vis-à-vis sunlight and ocular health. A growing number of scientists warn of hazards to the eye if ultraviolet radiation - and perhaps even shorter wavelength visible radiation also - is not filtered by lenses. Despite a substantial literature on the adverse effects of ultraviolet radiation (UVR) and intense light upon ocular structures, particularly upon the retina, controversy still surrounds the question of whether the levels of natural and man-made light sources are damaging when encountered under normal viewing conditions. Although scientific evidence accumulates to indicate that chronic exposure conditions may accelerate ageing processes in ocular tissues, the quantitative question of "How much is safe?" remains to be answered conclusively.
尽管现在大多数健康科学家都认为，暴露在阳光中的紫外线会对皮肤造成健康风险（如皮肤癌），但在阳光与眼部健康方面尚未真正达成科学共识。越来越多的科学家警告说，如果紫外线——甚至可能还有更短波长的可见光——没有被镜片过滤，会对眼睛造成危害。尽管有大量关于紫外线辐射（UVR）和强光对眼部结构，尤其是对视网膜的不利影响的文献，但对于在正常观看条件下遇到的自然和人造光源水平是否具有损害性这一问题，仍然存在争议。尽管有科学证据表明长期暴露可能会加速眼部组织的老化过程，但“多少剂量是安全的？”这一定量问题仍有待最终解答。
