目的：比较红河哈尼族彝族自治州汉族、哈尼族、彝族眼球生物测量的差异，以及SRK-T，Haigis两种公式在不同眼轴中对人工晶状体(IOL)度数预测的准确性，进一步为少数民族地区广大基层医院及防盲治盲项目提供客观的临床依据。

方法：选取就诊于我科的白内障患者186例200眼，按不同民族分为3组，以A超分别联合角膜曲率计及角膜地形图进行眼生物测量(眼轴长度、前房深度、角膜曲率)并比较差异； 按不同眼轴分为3组后又随机各分为两组，分别以SRK-T，Haigis进行IOL度数预测，搜集术后验光结果，计算绝对预测误差，并进行统计分析。

结果：各民族组间的平均眼轴长度、平均前房深度及平均角膜曲率(分别以角膜地形图及角膜曲率计测量)对比均无差异(P>0.05)，两种方法测量的平均角膜曲率比较均无差异(P>0.05)； 三个眼轴组两种方法测量的平均角膜曲率比较无差异(P>0.05)，同一眼轴组内比较均无差异(P>0.05)； 三个眼轴组两种IOL测量公式计算的绝对误差均无差异(P>0.05)； 短、中眼轴组SRK-T公式计算绝对误差较小，长眼轴组Haigis公式计算绝对误差较小。

结论：我科汉族、哈尼族、彝族白内障患者眼球生物测量无差异，角膜地形图及角膜曲率计测量角膜曲率无差异； SRK-T公式及Haigis公式对IOL度数均具有较高预测性，SRK-T公式对中短眼轴患者预测误差较小，Haigis对长眼轴患者预测性更佳。

METHODS: Selected 186 cases(200 eyes)cataract patients in our department, divided them into three groups according to different nations, get their eyeball biometric measurements(ocular axial length, anterior chamber depth and corneal curvature)by A-ultrasound combined with corneal curvature meter and corneal topography, and then compared the differences. According to the different eye axes, they were divided into three groups and then randomly divided into two groups. SRK-T and Haigis formulas were used to predict the IOL degree, and collected postoperative optometry results, calculated the absolute prediction error, then conducted statistical analysis.

RESULTS: There were no difference in the mean axial length, mean anterior chamber depth and mean corneal curvature(measured respectively by corneal topography and corneal keratometer)in the different ethnic groups(P>0.05), and the mean corneal curvature measured by the two methods had no difference(P>0.05). There were no difference of the mean corneal curvature measured by the two methods in the three axial eye groups(P>0.05)and in the same axial eye group(P>0.05). There were no difference in the absolute error of the two IOL measurement formulas in the three eye axis groups(P>0.05). The absolute error calculated by SRK-T formula for the short and the middle eye axis groups were smaller, while it calculated by Haigis formula for long eye axis group was smaller.

CONCLUSION: In our department, there are no statistical difference in the eye biometrics of Han, Yi and Hani nationality. Corneal curvature measured by corneal topography and corneal keratometer have no significant difference. SRK-T and Haigis formula both have high predictive value for IOL degree, SRK-T formula has smaller predictive error for patients which with short and middle eye axis, and Haigis formula has better predictive value for the long ones.