【摘要】  目的  评价小光斑飞点扫描式准分子激光LASIK治疗高度近视的效果。方法  采用德国SCHWIND ESIRIS准分子激光机对364例（721眼）高度近视进行了LASIK治疗。切削模式采用单区或多区切削，切削总量为78～187μm。随访3～12个月，观察术后视力、屈光度和并发症等情况。结果  术后裸眼视力≥1.0者，术后1天、3个月时分别为72.0%（519/721）、81.7%（589/721）；术后屈光度在±1.00D以内者，术后1天、3个月时分别为：89.7%（647/721）、90.7%（654/721）。主要的并发症有：偏中心切削3眼(0.42%)、瓣位置偏离5眼(0.69%)、角膜上皮植入5眼(0.69%)、眩光15眼(2.08%)。结论  小光斑飞点扫描式准分子激光LASIK治疗高度近视的临床效果安全有效，但是需要切削较多的角膜组织。

    【关键词】  近视；准分子激光

    The clinical effect of high myopia treated with LASIK by a small optical zones flying-spot scanner machine

    YAO Daqiang, SHA Xiangyin,YE Cuiyu,et al.Department of Ophthalmology,The Second Affiliated Hospital,Guangzhou Medical College,Guangzhou 510260,China

    【Abstract】  Objective  To evaluate the clinical effect of high myopia treated with LASIK by a small optical zones flyingspot scanner machine.Methods  364 cases (721 eyes) of high myopia were treated with LASIK by the SCHWIND ESIRIS laser machine with small optical flyingspot scanner.The ablation zone was singlezone or multizone.The ablation depth was range of 78～187μm.All cases were followed up for 3～12 months.The changes of their visual acuities,subjective manifest refraction and complications were observed.Results  Postoperatively,at one day and 3 month the visual acuities were 1.0 or better in 72.0%（519/721） and 81.7%（589/721）.The diopter within ±1.00 was 89.7%（647/721） and 90.7%（654/721）respectively.The complications include:decentral ablation 3 eyes (0.42%),decentral flap 5 eyes (0.69%),epithelial ingrowth 5 eyes(0.69%),glare 15 eyes(2.08%).Conclusion  The clinical effect of high myopia treated with LASIK by a small optical zones flying-spot scanner machine was safety and efficacy,although it needs more corneal tissues.

    【Key words】  myopia;excimer laser

    准分子激光的问世，使角膜屈光手术得到了飞跃性的发展，其治疗近视、散光的有效性、可预测性、安全性、稳定性以及可重复性，已经得到了长期的临床验证［1～3］。近年来，小光斑飞点扫描式准分子激光机的应用使LASIK的精确度和安全性不断提高，但它所消耗的角膜组织较多，对于部分高度近视的治疗需要选择多区切削模式。自2002年7月以来，我院采用SCHWIND ESIRIS治疗高度近视的效果进行了观察，现报告如下。

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