方法：回顾性比较60例非洲肯尼亚及60例中国汉族行白内障手术患者角膜曲率、眼轴长度和人工晶状体屈光度的差异。

结果：选取60例非洲病例平均年龄67.6±16.4岁，平均人工晶状体度数22.88±1.84D，平均垂直角膜曲率43.03±0.63D，平均水平角膜曲率42.70±0.8D，平均眼球轴长22.81±0.88mm； 60例中国汉族病例平均年龄64.7±11.5岁，平均人工晶状体度数21.55±1.67D，平均垂直角膜曲率44.66±1.73D，平均水平角膜曲率43.75±1.80D，平均眼球轴长23.15±0.86mm。两者之差异均有统计学意义。

结论：非洲黑人与中国汉族人的眼轴和角膜曲率存在差异，白内障手术时人工晶状体屈光度范围不同。

METHODS: The ocular components of 60 African people(60 eyes)and 60 Chinese(60 eyes)were examined using keratometry(corneal curvature), ultrasonography(axial dimensions).

RESULTS: The average ages were 67.6±16.4 years(the African people)and 64.7±11.5 years(the Chinese). The averages of vertical corneal curvature were 43.03±0.63D(African)and 44.66±1.73D(Chinese). The averages of horizontal corneal curvature(±SD)were 42.70±0.8D(African)and 43.75±1.80D(Chinese). The average axial dimensions were 22.81±0.88mm(the African people)and 23.15±0.86mm(the Chinese). The average intraocular lens(IOL)powers were 22.88±1.84D(the African people)and 21.55±1.67D(the Chinese).

CONCLUSION: The corneal curvature,axial dimensions and IOL power of the African people and the Chinese has obvious difference.