Lasik术后屈光回退的临床分析

Clincial Observation of Laser in Situ Keratomileusis in Regression of Myopia

目的分析准分子激光原位角膜磨镶术(eximer laser in-situ keratom ileusis,LASIK)治疗近视758例(1510眼)术后屈光回退。方法所有患者均使用法国产MoriaM2旋转式角膜板层刀,刀头为110#,同一手术者进行手术,术前及术后1年的随访资料进行对比分析。结果中低度近视(-1.00^-6.00D)938眼,92眼回退,回退率为9.8%,高度近视以上(-6.25^-20.00D)572眼,152眼回退,回退率为26.5%,两组比较具有显著差异性(P<0.01),近视回退量与术后角膜基质床厚度呈负相关与术前预矫屈光度呈正相关。结论LASIK术后屈光回退与术前预矫屈光度、术后角膜基质床厚度、术后时间及个体差异等因素有关。

Objective To investigate the clinical effect of eximer laser in - situ keratomileusis for postoperative refraction regression of 758 patients with myopia. Methods Total 758 patients （1 510 eyes） were operated on with Moria M2 microkeratome by same operator. After opeation the data of the patients were recorded and analyzed. Results The rate of regression was 9.8% and 26. 5% in low - moderate myopia group （ - 1.00 - - 6.00） and high group（ - 6.25 - - 20. 00D）. Conclusion Postoperative myopia regression after LASIK is related to the extent of attempted correction,the post- operative thickness of corneal stroma, time and individual difference.