Rojas J R, Málaga H
Ann Ophthalmol. 1986 Apr;18(4):147-9.
A survey of the prevalence of pterygium was performed, and a random proportional sampling was taken of 367 patients in four hospitals in Lima, Peru. An overall incidence of 31.06% was found, with a statistically significant increase in prevalence with regard to age. No statistically significant differences with regard to sex or occupation were found. Although incidence of pterygium was higher in men and in outdoor workers, these factors were not statistically significant.
对翼状胬肉的患病率进行了一项调查，在秘鲁利马的四家医院对367名患者进行了随机比例抽样。总体发病率为31.06%，患病率随年龄增长有统计学意义的增加。在性别或职业方面未发现统计学上的显著差异。尽管男性和户外工作者的翼状胬肉发病率较高，但这些因素无统计学意义。
