超高度近视准分子激光原位角膜磨镶术术后视力及屈光状态的改变

Visual acuity and refractive change of ultra-high myopia after laser in situ keratomileusis

目的:探讨超高度近视准分子激光原位角膜磨镶术(LASIK)术后视力及屈光状态的改变。方法:选择行LASIK手术的超高度近视患者31例54眼,术前屈光度介于-10.00～-17.00D之间,分别测量术前、术后1d,1wk;1,3及6mo的视力、球镜度数、柱镜度数及其轴向并对所得结果进行回顾性分析。结果:超高度近视LASIK术后平均视力较术前增加,球镜度数随时间推移呈下降趋势,至术后6mo尚未达到稳定,术后散光随时间推移逐渐减少,术后散光的轴向可发生一定的变化。结论:认真分析术前资料,科学的设计切削参数,LASIK矫治超高度近视是安全有效的。

AIM： To investigate the change of visual acuity and refractive state of ultra-high myopia after laser in situ keratomileusis （LASlK）. METHODS： Thirty-one cases （54 eyes） of ultra-high myopia underwent LASlK were chosen. The diopter was - 10. 00-17. 00D before surgery. Visual acuity, spherical diopter, cylinder diopter and its axis before surgery and at 1 day, 1 week, 1, 3 and 6 months after surgery were measured. The results were analyzed retrospectively. RESULTS： The best correct visual acuity after LASlK increased compared with preoperative. The spherical diopter, over time a declining trend after 6 months had yet to achieve stability till 6 months after operation and postoperative astigmatism gradually reduced over time, postoperative astigmatism could occur axial changes. CONCLUSION： With careful analysis of information, scientific design of cutting parameters, LASlK is a safe and effective treatment for ultra-high myopia.