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Relationship between the morbidity of pterygium and the duration of ultraviolet rays exposure in Sanya, China

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摘要篇首： Pterygium is sunlight related, ocular-surface lesion that obscures vision. The morbidity varies in different parts of the same country. Several surveys have shown that the countries nearer the equator have higher rate of pterygium than the other regions, the possible reason is due to the low latitude and stronger exposure to ultraviolet rays.1 The onset of pterygium is closely related to the environment,2including ultraviolet rays, sandstorm, dry climate and so on. Prolonged ultraviolet-B radiation is regarded as a risk factor for pterygium, and that could explain its prevalence is much higher in the low latitude area.

作者单位 Department of Ophthalmology, Fourth Affiliated Hospital, China Medical University, Shenyang 110005, China ^[1] Department of Public Health , Public Health College of China Medical University, Shenyang 110001, China ^[2] Department of Health Statistics, Public Health College of China Medical University, Shenyang 110001, China ^[3]

关键词 pterygium ultraviolet rays exposure time

分类号 R5

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发布时间 2006-09-11（万方平台首次上网日期，不代表论文的发表时间）

基金项目

国家自然科学基金（40275036）；辽宁省省教育厅资助项目（2004C026）

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