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目的 :探讨旋切式与平切式角膜瓣对 L ASIK效果的影响。方法 :随机选用平推式角膜刀制成平切式角膜瓣后行 L ASIK手术16 0例 30 5眼 ,用旋切式角膜刀制成蒂在上方的旋切式角膜瓣后行 L ASIK手术 2 0 2例 386眼 ,随访 6个月。对两组不同类型角膜瓣的术后裸眼视力、术中及术后早期并发症进行分析比较。结果 :术后第一天 ,高度近视组的裸眼视力旋切组显著优于平切组(p<0 .0 5 ) ,术后第十天和一个月超高度近视组的裸眼视力旋切组明显高于平切组 (p<0 .0 5及 p<0 .0 1) ,术后三个月、六个月各组间无显著性差异 ;与微型角膜刀相关的并发症发生率旋切组多于平切组 ,但切缘出血旋切组大大减少 (p<0 .0 0 0 1) ,旋切组术后仍有 1例角膜瓣漂移。结论 :蒂在上方的旋切式角膜瓣术后视力恢复快 ,术中切缘出血少 ,术中角膜瓣对复位容易 ,但仍有各种术中并发症且不能有效预防术后角膜瓣移位
Objective: To investigate the effect of revolving and flattened corneal flap on LASIK. METHODS: Twenty-five cases of 305 LASIK patients were treated by flat push-type corneal scalpel. L ASIK was performed with a revolving corneal flap pedicled above the revolving corneal flap 2 0 2 cases of 386 eyes, followed up for 6 months. The visual acuity, intraoperative and postoperative early complications of two groups of different types of corneal flap were analyzed and compared. Results: On the first postoperative day, the uncorrected VA group in the high myopia group was significantly better than the uncooperative group (p <0.05), and the uncorrected VA group on the tenth and the first month postoperatively (P <0.05 and p <0.01). There was no significant difference between the three groups at the three months and six months after operation. The incidence of complications associated with microkeratome More than the resection group, but the margins hemorrhage peeling group was significantly reduced (p <0. 0 0 1), 1 case of corneal flap drift after the resection group. CONCLUSION: The pedicle screw graft possesses the fastest visual acuity after operation, the less bleeding on the edge of the incision during operation, and the intraoperative corneal flap is easy to reset. However, there are various intraoperative complications and can not effectively prevent postoperative corneal flap displacement Bit