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目的了解翼状胬肉（简称胬肉）在南方农村地区中老年人群的分布特点及其对视功能的影响。方法在广东省斗门县农村随机抽样调查了１５个点，以５０岁以上（包括５０岁）的人群共２３７６人为调查对象，对２０５３人中的胬肉的发病情况进行了统计分析。检查方法及诊断标准同文献报道。结果本调查以≥５０岁的农村人口为对象，受检率为８６．４１％。胬肉在该人群中的患病率为３７．４６％，其中女性患病高于男性。在５０＋、６０＋、７０＋、８０＋岁组的患病率分别为３４．５４％、４０．４５％、３７．１９％和３６．１４％。有９３．１％的胬肉生长于鼻侧，仅１．４３％的胬肉发生于颞侧。１．６６％的眼因胬肉导致低视力。结论翼状胬肉是农村中老年人群中的常见眼病之一，且有１．６６％的眼因该病导致低视力
Objective To understand the distribution of pterygium (Pterygium) in middle-aged and elderly people in rural areas of South China and its influence on visual function. Methods A total of 2376 rural population over 50 years old (including 50 years old) were surveyed in Doumen County of Guangdong Province by random sampling. The incidence of pterygium in 2053 people were statistically analyzed. Inspection methods and diagnostic criteria with the literature. Results The survey of rural population ≥50 years of age as the object, the examination rate was 86.41%. The prevalence of pterygium in this population was 37.46%, of which women were more affected than men. The prevalence in the 50 +, 60 +, 70 + and 80 + groups was 34.54%, 40.45%, 37.19% and 36.14% respectively. 93.1% of the pterygium grew on the nasal side, while only 1.43% of the pterygium occurred on the temporal side. 1.66% of eyes due to pterygium cause low vision. Conclusions Pterygium is one of the common eye diseases in rural middle-aged and elderly people, and 1.66% of the eyes cause the disease with low vision