准分子激光角膜切削术矫正RK术后近视22例  

Photorefractive keratectomy for un-dercorrection after radial keratotomy in 22 cases

作　　者：雷鸣[1] 李琦云[1] 金淑芬[1] 

机构地区：[1]成都军区昆明总医院眼科,中国云南省昆明市650032

出　　处：《国际眼科杂志》2005年第2期371-372,共2页International Eye Science

摘　　要：目的:探讨准分子激光角膜切削术(PRK)矫正角膜放射状切开术(RK)后残留近视及近视散光的有效性和安全性。方法:应用波长193nm的ArF准分子激光对22例39眼RK术后残留的近视及近视散光进行准分子激光屈光手术治疗。结果:随访5a,平均屈光度由术前-4.21±1.42D下降至术后的-0.41±0.31D,34眼≥术前最佳矫正视力,术前裸眼视力≥1.0者32眼,术后裸眼视力≥1.0者30眼,回退4眼(10%),回退度数<-1.25D。术前矫正视力≤0.9者,术后5a时仅2眼裸眼视力≥1.0。结论:PRK是一种有效和安全的矫正RK术后残留近视的方法。· AIM: To assess the efficacy and safety of excimer laser photorefractive keratectomy (PRK) for treatment of undercorrection after radial keratotomy.· METHODS: A total of 39 eyes undergoing radial keratotomy 5a before were corrected with PRK. The postoperative follow-up was 5a.· RESULTS: The mean diopter was reduced from 4.21±1.42DS preoperatively to -0.41±0.31DS postoperatively. The uncorrective visual acuity (UCVA) of 34 eyes reached or exceeded their preoperative corrected visual acuity. The UCVA of 30 eyesreached 1.0, and undercorrection after PRK occurred in 4 eyes (10%), with undercorrective refractive sphere <-1.25D.· CONCLUSION: PRK is an effective and safe surgery for correcting undercorrection after radial keratotomy.·

关 键 词：准分子激光角膜切削术 RK术后 角膜放射状切开术 ArF准分子激光 裸眼视力 术后残留近视 近视散光 矫正视力 手术治疗 术前 安全性 屈光度 PRK 回退 

分 类 号：R779.63[医药卫生—眼科] R778.11[医药卫生—临床医学]