准分子激光上皮下角膜磨镶术5年临床疗效观察

FIVE-YEAR FOLLOW-UP EVALUATION OF LASER - ASSISTED SUBEPITHELIAL KERATOMILEUSIS FOR MYOPIA

目的探讨准分子激光上皮下角膜磨镶术(laser-assisted subepithelial keratomileusis,LASEK)治疗近视的临床疗效,并分析LASEK的远期疗效及安全性。方法回顾性分析行LASEK手术并且随访达5年以上的患者26例(52眼),对患者术前及术后不同时间段裸眼视力、屈光状态及角膜情况等进行总结比较。结果术后早期裸眼视力恢复稍慢,但是在术后半年,所有病例裸眼视力均≥1.0。术后早期出现角膜上皮下雾状混浊(Haze)5眼,但是经过治疗后均消退。结论 LASEK可以有效的治疗近视,但其视力恢复稍慢,术后容易出现Haze,对于不适宜激光原位角膜磨镶术的患者,LASEK仍然是首先的手术方式。

Objective To detect the effect of laser - assisted subepithelial keratomileusis （LASEK） for treatment of myopia, and analyze the long - term efficacy and safety. Methods A retrospective analysis of 26 cases （52 eyes） of LASEK surgery,which were followed up over 5 years were performed. The visual acuity, refractive status and corneal conditions at preoperative and different postoperative time were examined and summarized. Results The postoperative uncorrected visual acuity of the patients recovered slower, but after six months, uncorrected visual acuity ≥ 1.0 in all cases, after 3 years, the visual acuity of a small number of cases became worse than 1.0. Moreover, at early postoperative time, Haze Was found in some cases, but after treatment, all the cases were faded. Conclusion LASEK is effective in the treatment of myopia. But the visual acuity after LASEK recovers slower,and some cases prone to Haze. LASEK is more suitable for the patients who are not suitable for laser in situ keratomileusis laser.