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评价准分子激光原位角膜磨镶术（ＬＡＳＩＫ）的治疗效果和安全性。方法：采用ＬＡＳＩＫ技术对高度近视（Ａ组）和超高度近视（Ｂ组）进行手术并对手术效果进行对比分析。结果：Ａ组屈光度由术前等效球镜（－８．３５± ０．５）Ｄ减少到术后（－ ０．６１± ０．４４）Ｄ，Ｂ组由（－１２． ５５± ２．８２）Ｄ减少到（－１．２８±０．８）Ｄ。与术前相比，差别有统计学意义（Ｐ＜０．０５）。裸眼视力≥０．５和≥１．０者Ａ组分别是１００％和３２．９％，Ｂ组分别是８９．１４％和２１．７％。两组间比较，差别有统计学意义（Ｐ＜ ０．０５）。合并症术中有角膜刀中途停顿，角膜缘少量出血及术后偏中心等。结论：ＬＡＳＩＫ手术对高度和超高度近视有良好矫治效果。但手术复杂，手术参数和远期效果需要进一步探讨。
To evaluate the efficacy and safety of excimer laser in situ keratomileusis (LASIK). Methods: The LASIK technique was used in the operation of high myopia (group A) and ultra-high myopia (group B) and the operative effect was compared. Results: The refraction of group A was decreased from (-8.35 ± 0.5) D to (--0.61 ± 0.44) D postoperatively and (-12.555 ± 2) 82) D reduced to (-1.28 ± 0.8) D. Compared with preoperative, the difference was statistically significant (P <0.05). Group A with uncorrected visual acuity ≥0.5 and ≥1.0 were 100% and 32.9% respectively, while those with B group were 89.14% and 21.7% respectively. The difference between the two groups was statistically significant (P <0.05). Comorbid surgery corneal midway stop, a small amount of limbal bleeding and postoperative center. Conclusion: LASIK has good effect on the treatment of high and super high myopia. However, complicated surgery, surgical parameters and long-term results need to be further explored.