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为探讨显微板层角膜切除术后角膜地形图和临床屈光变化的关系，对近视屈光度－7．00D～－32．00D的26例42眼高度近视眼于术前及术后6～9月行角膜地形图检查，并与同期的验光结果行对比。结果角膜地形图数值分析与临床效果有较大的差异，且综合指标呈下降趋势，与疗效不符。结论该差异的产生与地形图仪分析软件设定范围有关，手术增加的散光与切削区偏心有关，但该偏心多与视轴中心吻合，故对术后视力恢复无影响。
To investigate the relationship between corneal topography and clinical refractive change after corneal micrlectomy, 26 cases with 42 myopia with myopia in the range of -7.00D ~ -32.00D were treated with preoperative and postoperative 6 ~ 9 Month line corneal topography examination, and compared with the same period of optometry results line. Results The numerical analysis and clinical effect of corneal topography showed great differences, and the comprehensive index showed a downward trend, which was inconsistent with the curative effect. Conclusion The discrepancy is related to the scope of topographic analysis software. The astigmatism increased with the eccentricity of the cutting area. However, the eccentricity is more consistent with the center of the optic axis, so it has no effect on the visual acuity recovery.