Zigman S, Datiles M, Torczynski E
Invest Ophthalmol Vis Sci. 1979 May;18(5):462-7.
Studies of the cataractous lenses of humans in three different geographic locations indicate that where the ultraviolet components of sunlight are more intense, dark brown cataracts result at a higher frequency than in locations where they are weak. Individuals exposed to sunlight regularly by virtue of their outdoor occupations seemed to develop this dark brown type of cataract much more frequently than those who work indoors. The biochemical characteristics of all brunescent cataracts were found to be very similar, whether derived from individuals exposed to high or low levels of sunlight. These findings support the idea that exposure to sunlight specifically enhances brunescent cataract development in humans.
对来自三个不同地理位置的人类白内障晶状体的研究表明，在阳光中紫外线成分更强的地方，深褐色白内障的发生频率高于紫外线成分较弱的地方。由于户外工作而经常暴露在阳光下的个体，似乎比在室内工作的个体更频繁地患上这种深褐色类型的白内障。研究发现，所有深褐色白内障的生化特征都非常相似，无论其来源的个体暴露在高剂量还是低剂量的阳光下。这些发现支持了这样一种观点，即暴露在阳光下会特别促进人类深褐色白内障的发展。
