近视眼患者角膜屈光力与角膜表面对称性的相关性分析

Correlation analysis between corneal refractive power and corneal surface symmetry in myopia patients

目的探讨近视患者角膜屈光力与角膜表面对称性的相关关系。方法对近视患者眼1472只(其中男性眼715只,女性眼757只)、行PRK手术后1年的患者眼161只和行LASIK手术后1年的患者眼158只进行统计学分析,研究角膜平均屈光力(ACP)与角膜表面非对称指数(SAI)的相关关系。结果ACP与SAI在男性和女性中均存在明显的正相关关系(Pearson相关系数为分别为0·120、0·108,P<0·01),PRK术后1年,ACP与SAI之间无明显相关关系(偏相关系数为-0·110,P=0·165);LASIK术后1年,ACP与SAI之间无明显相关关系(Pearson相关系数为-0·066,P=0·413)。结论近视患者角膜屈光力与角膜表面对称性存在明显的正相关关系,准分子激光屈光性手术可以改变这种相关性。

Objective To investigate the correlation between corneal refractive power and corneal surface symmetry in myopia patients. Methods 715 male and 757 female eyes of myopia, 161 eyes undergone PRK more than 1 year and 158 eyes undergone LASIK more than 1 year were chosen. Investigate the correlation between average corneal power（ACP） and corneal surface asymmetry index （SAI）. Results Significant positive correlation was found between ACP and SAI（In male： r = 0.120, P 〈 0.01 ; in female： r = 0.108, P 〈 0.01 ）. No significant correlation was found in those who undergone PRK（ partial correlation coefficient - 0.110, P = 0.165） or LASIK（ r = - 0.066, P = 0.413）. Conclusion Significant positive correlation was found between corneal refractive power and corneal surface symmetry in myopia patients while PRK or LASIK can change the correlativity.