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目的 探讨LASIK手术对近视患者调节和隐斜的影响。方法 对LASIK手术的近视患者 60人在术前和术后一个月进行调节力和看近隐斜度的测定 ,并进行对比分析。结果 术前调节力平均值为 6 77D± 1 41D ,术后调节力平均值为 7 3 9D± 1 2 5D。统计学分析二者之间的差异有非常显著性意义 (t =6 887,P <0 0 1)。术前裸眼隐斜度的平均值为 -10 18± 5 0 7Δ。术前戴矫正镜片隐斜度的平均值为 -1 99± 6 49Δ ;术后裸眼隐斜度的平均值为 -4 92± 4 46Δ。统计学分析 ,术前裸眼与戴矫正镜片隐斜度平均值之间的差异有非常显著性意义 (t =11 898,P <0 0 1) ;术前裸眼与术后裸眼隐斜度平均值之间的差异有非常显著性意义 (t =11 10 1,P <0 0 1) ;术后裸眼与术前戴矫正镜片隐斜度平均值之间的差异有非常显著性意义 (t =3 0 45 ,P <0 0 1)。结论 LASIK手术后近视患者的调节力有一定增加。矫正眼镜和LASIK手术可以减少近视患者看近外隐斜。较长期的影响尚有待于观察。
Objective To investigate the effect of LASIK on myopia and hypopia. Methods Sixty patients with myopia underwent LASIK surgery before surgery and one month after surgery to adjust the power and to see the near-stealth gradient, and comparative analysis. Results The mean value of preoperative accommodation was 6 77D ± 1 41D and the average postoperative accommodation was 7 3 9D ± 1 2 5D. Statistical analysis of the difference between the two has a very significant (t = 6 887, P <0 01). The average preoperative naked eye phoria is -10 18 ± 5 0 7Δ. The mean value of phoria of preoperative orthodontic lenses was -1 99 ± 6 49Δ. The average value of postoperative naked eye phoria was -4 92 ± 4 46Δ. Statistical analysis showed that there was a significant difference between the average preoperative anterior and normal orthodontic lenses (t = 11 898, P <0.01) (T = 11 10 1, P 0 01). There was a significant difference between the average value of the phoria of the naked eye and preoperative orthokeratology lenses (t = 11 10 1, P 0 01) 0 45, P <0 0 1). Conclusion The accommodative power of myopic patients after LASIK surgery increased to a certain extent. Ophthalmic correction and LASIK surgery can reduce myopia in patients with near-excursion. The longer term impact remains to be seen.