【摘要】 目的　比较 L ASIK手术前后角膜厚度的变化 ,分析微型角膜板层刀对角膜厚度的影响。方法　 48例(96只眼 )的角膜厚度在 L ASIK术前及术后不同时期进行测量 ,比较术后理论值与实测值的差异 ,分析理论值与实测值的差异所在 ,从而判断微型角膜板层刀是否对角膜厚度产生一定的影响。结果　术后 3天、7天的角膜厚度实测值与理论值有显著性差异 (P <0 .0 5 ) ,术后 1月实测值与理论值差异无显著性 (P >0 .0 5 )。结论　 L ASIK术中微型角膜板层刀的切割作用对角膜厚度会产生一定的影响。更多还原

【Abstract】 Objective To observe the difference of corneal thickness in human corneas in vivo before and after laser in situ keratomileusis (LASIK),and duduce the effect of lamellar keratoplasty on residual stromal bed thickness from the difference.Methods Corneal thickness of 96 eyes were measured before and after lASIK in different period,analyzing the difference of theoretic and factual data,from the difference we can judge if the effect exists.Result There is significant difference between theoretic data and factual data in postoperative 3 days and 7 days (P<0.05),and there is no significant difference between theoretic data and factual data in postoperative 1 month (P>0.05).Conclusion There is obvious effect of lamellar keratoplasty on residual stromal bed thickness in laser in situ keratomileusis.更多还原