摘要目的 观察机械板层刀制作角膜瓣的前弹力层下角膜磨镶术矫正近视的安全性和有效性.方法 32例(64眼)均采用OUP-SBK刀制作角膜瓣,随访3个月,观察手术的并发症、记录术后视力和屈光度,对角膜瓣的厚度采用前段OCT进行测量,并对数据进行统计学分析.结果 使用OUP-SBK刀制作的角膜瓣中央平均厚度为(101.87 ±4.12) μm.1 mm、2 mm处上下方对应的点厚度差异无统计学意义(P＞0.05).术中4眼角膜瓣边缘出血,术后1眼周边部微皱折,术后视力均达到术前矫正视力,屈光度范围为-0.50 D-+1.00 D.结论 机械板层刀制作角膜瓣的前弹力层下角膜磨镶术矫正近视安全有效,手术效果稳定.

abstractsObjective To observe the safety and efficacy of sub-Bowman's keratomileusis (SBK) using mechanical microkeratome for correcting myopia.Methods Flaps for the SBK treatments were created using Moria microkeratome in 64 eyes of 62 patients.The follow-up time was 3 months.The refractive and visual results,and complication were observed.The flap thickness was assessed with anterior segment optical coherence tomography and data was analysed with statistical method.Results The mean central corneal flap thickness was (101.87 ± 4.12) μm at 3 month after aurgery.There was no statistically significant difference between 1 mm and 2 mm contralateral point (P ＞ 0.05).There was no other complications except intraoperative corneal limbal bleeding in 4 eyes and corneal flap microfolds in 1 eye.Postoperatively,all eyes reached preoperative best corrected distance visual acuity.The mean spherical equivalent was (-0.12 ± 0.45) D(range from-0.50D to + 1.00D).Conclusion Sub-Bowman' s keratomileusis with mechanical microkeratome is safe,predictable,and stable.