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目的比较分析小光斑、大光斑准分子激光系统应用Lasik治疗近视及散光眼的临床疗效。方法分析使用德国Wavelight公司的小光斑飞点扫描准分子激光治疗仪及VISX公司的大光斑准分子激光治疗仪行Lasik治疗近视及散光眼,根据屈光度不同分3组,A组:-1.00～-6.00D,B组:-6.25～-10.00D,C组:-10.25～-13.00D;小光斑治疗282人,545眼,A组400眼,B组120眼,C组25眼,大光斑治疗342人,675眼,A组472眼,B组163眼,C组40眼,观察术后1年视力矫治及角膜地形图情况。结果术后1年视力比术前最佳矫正视力下降1行及1行以上,小光斑A组5眼,B组7眼,C组10眼,共占4.04%,大光斑A组10眼,B组18眼,C组24眼,共占7.70%;角膜地形图领结型,半环状型,钥匙孔型,小光斑占95%,大光斑占90.65%,不规则型小光斑占5%,大光斑占9.05%,中心岛型小光斑无,大光斑2例,占0.03%。结论小光斑准分子激光治疗仪比大光斑准分子激光治疗仪行Lasik治疗屈光不正临床效果较好。
Objective To compare the clinical efficacy of Lasik in the treatment of myopia and astigmatism with small speckle and large speckle excimer laser system. Methods: Lasik was used to treat myopia and astigmatism with Wavelight small spot scanning excimer laser treatment instrument and VISX large spot laser excimer laser treatment instrument. According to different diopter, group A was divided into three groups: -1.00 ~ 6.00D in group B, -6.25 to -10.00D in group B, -10.25 to -13.00D in group C, 282 in small spot, 545 eyes in group A, 400 eyes in group A, 120 eyes in group B, 25 eyes in group C, 342 eyes, 675 eyes, 472 eyes in group A, 163 eyes in group B and 40 eyes in group C, and the situation of vision correction and corneal topography at 1 year after operation were observed. Results One year after operation, the visual acuity decreased by 1 line and more than 1 line from the preoperative best corrected visual acuity, 5 in small spot A group, 7 in group B, 10 in group C (4.04%), 10 in large spot group A, 18 eyes in group B, 24 eyes in group C, accounting for 7.70%; corneal topography bow tie type, semi-ring type, keyhole type, small spot 95%, large spot 90.65%, irregular small spot 5% , Large spot accounted for 9.05%, small center spot island no large spot in 2 cases, accounting for 0.03%. Conclusion Small spot excimer laser treatment is better than Lasik treatment of large spot excimer laser treatment.