FS-LASIK术中采用椭圆形瓣与圆形瓣的术后早期视觉质量比较  

AComparison of the early postoperative visual quality of oval versus round valve in FS⁃LASIK

作　　者：梁雄姿 张青松 杨万举 冷思 吴海霞 张明慧[1] LIANG Xion-gzi;ZHANG Qingsong;YANG Wanju;LENG Si;WU Haixia;ZHANG Minghui(Department of Refractive Surgery,Wuhan University Affiliated Aier Ophthalmology Hospital,Wuhan 430061,China)

机构地区：[1]武汉大学附属爱尔眼科医院屈光手术科,武汉430061

出　　处：《实用医学杂志》2024年第17期2430-2434,共5页The Journal of Practical Medicine

基　　金：湖南省自然科学基金面上项目(编号:2023JJ30002)。

摘　　要：目的 探讨飞秒激光辅助的准分子激光原位角膜磨镶术(FS-LASIK)中采用椭圆形角膜瓣与圆形角膜瓣的术后早期视觉质量差异。方法 前瞻性随机临床对照研究,选取自2022年6月至2023年2月在武汉大学附属爱尔眼科医院自愿接受FS-LASIK手术的患者,按就诊顺序随机分为椭圆瓣组和圆瓣组,各36例(72眼)。FS-LASIK术中分别制作椭圆形与圆形角膜瓣,并行准分子激光手术。观察术中及术后并发症;术后随访3个月,比较两组患者术后1 d、1周、1个月、3个月的裸眼视力(UCVA)与等效球镜(SE);以及两组术后3个月的调制传递函数(MTF)、斯特列尔比(SR)及总高阶像差。结果 所有患者手术均顺利完成,未发生严重并发症。两组术后1 d、1周、1个月、3个月UCVA差异均无统计学意义(P> 0.05)。两组术后1 d、1周、1个月、3个月SE差异均无统计学意义(P> 0.05)。两组术后3个月的MTF、SR及总高阶像差差异均无统计学意义(P> 0.05)。结论 FS-LASIK术中采用椭圆形角膜瓣或圆形角膜瓣均可获得理想的视力,两者术后早期的视觉质量无显著差异。Objective To investigate the difference in visual quality between oval and round corneal flaps in femtosecond excimer laser in situ keratomileusis(FS-LASIK).Methods In a prospective randomized controlled clinical study,patients who voluntarily underwent FS-LASIK surgery in Wuhan University Affiliated Aier Ophthalmology Hospital from June 2022 to February 2023 were randomly divided into oval valve group and round valve group,with 36 patients(72 eyes)in each group.During FS-LASIK,oval and round corneal flaps were made,and excimer laser surgery was performed in parallel.Observe intraoperative and postoperative complications.The unaided visual acuity(UCVA)and spherical equivalent(SE)at 1 day,1 week,1 month and 3 months after surgery were compared between the two groups at 3 months after surgery,and the modulation transfer function(MTF),Strel ratio(SR)and total higher-order aberration at 3 months after surgery were compared between the two groups.Results All patients had successfully completed the surgery without serious complications.There was no significant difference between the oval valve group and the round valve group in UCVA at 1 day,1 week after surgery,1 month after surgery,3 months after surgery.There was no significant difference between the two groups on the postoperative SE at 1 day,1 week after surgery,1 month after surgery,and 3 months after surgery.There was no significant difference in MTF,SR and total higher-order aberration between the two groups at 3 months after surgery.Conclusion Ideal visual acuity can be achieved with either oval or round corneal flap during FS-LASIK,and there is no significant difference in visual quality between the two in the early postoperativeperiod.

关 键 词：飞秒激光 角膜瓣 视觉质量 调制传递函数 

分 类 号：R778.1[医药卫生—眼科]