准分子激光小光斑飞点扫描切削模式与宽光束切削模式治疗复性近视散光的临床效果比较

目的 比较准分子激光的宽光束和小光斑飞点扫描切削模式对复性近视散光矫正效果的影响。方法 回溯研究接受准分子激光原位角膜磨镶术的复性的近视散光共92眼。按照准分子激光切削模式分为A组(小光斑飞点扫描切削模式)51眼；B组(宽光束切削模式)41眼，做两组患者之间年龄、屈光度、术前最佳矫正视力与术后裸眼视力以及两组术后裸眼视力统计学处理。结果A、B两组在年龄、屈光度、术前最佳矫正视力上无统计学差异。A组术后平均裸眼视力达到术前平均最佳矫正视力水平。B组术后平均裸眼视力低于术前平均最佳矫正视力水平。术后平均裸眼视力A组高于B组。结论 小光斑飞点扫描切削模式治疗复性近视散光的效果优于宽光束模式。

Comparison of Excimer Laser Flying Spots Scanning Mode and Broad Beam Mode for Compound Myopic Astigmatis

Objective We compared the efficacy of excimer laser flying spots mode and broad beam made for treatment of myopia with astigmatism. Methods A retrospective study was performed to evaluate the visual acuity of 92 eyes after laser in situ keratomileusis. Patients were divided into two groups according to the procedure with flying spots mode and broad beam mode. There were 51 eyes in A group whose procedure were done with flying spots mode and 41 eyes in B group with broad beam mode. Results There were no statistically significant difference in the mean ages and preoperative spherical equivalent refraction between two groups. No statistically difference between preoperative best corrected visual acuity and postoperative uncorrected visual acuity in A group. There were statistically significant between preoperative best corrected visual acuity and postoperative uncorrected visual acuity in B group. Conclusion There were statistically significant in postoperative uncorrected visual acuity between A and B group.