LASEK治疗屈光不正的临床评价

The Clinical Efficacy of LASEK in Refractive Surgery

目的评价准分子激光上皮下角膜磨镶术(LASEK)在屈光手术中的应用及手术细节处理对手术效果的影响。方法首次屈光手术66例120眼,二次屈光不正补充矫正9例15眼。屈光度范围为近视-1.00^-16.50DS,远视+1.00^+6.50 DS,散光±1.00~±6.00 DC。分析术后症状、疗效及影响因素。结果LASEK能有效提高裸眼视力;120眼(88.9%)达到或超过术前最佳矫正视力;14眼(10.37%)术后角膜上皮下雾状混浊(Haze)。结论LASEK疗效确切,适应症范围大,但手术预测性、舒适度稍差,合理使用药物及控制手术环节可减轻术后不适,减少Haze发生。

Objective To evaluate the clinical efficacy of laser subepithelial keratomileusis （LASEK） applied in refractive surgery, detailed treating points and the effects. Methods 120 eyes of 66 patients with high myopia accepted refracted LASEK, 15 eyes of 9 patients were secondary complementary LASEK. Range of diopters was around -1.00～-16.50 DS of myopia, ＋ 1.00～＋6.50DS of hyperopia, 1.00～6.00DC of astigmatism, the research observes the complications during and after operation, the post-operation subjective symptoms and the curative effects, and identifies the influence factors. Results About 88. 9% patients acquired or even achieved better eyesight than their best pre-operation spectacle corrected visual acuity（BCVA） but 11.1% of patients failed to reach BCVA. Conclusion LASEK can treat different diopter with a wider applicable range than laser in situ keratomileusis（LASIK）. Although LASEK treatment is less comfortable and less predictable than LASIK, there are ways to alleviate the op- eration discomfort and reduce Haze by using medicine and by controlling the operating factors involved, and accordingly, improve the curative effect of LASEK.