眼内屈光手术对高度近视患者视功能的影响

Effect of intraocular refractive surgery on visual function in high myopia

目的探讨眼内屈光手术对高度近视患者视功能的影响。方法 160例(320眼)高度近视患者分别接受透明晶状体摘出术和有晶状体眼的人工晶状体植入术,分别检查患者术前、术后1个月的视力、立体视觉、屈光度,并进行对比分析。结果 160例患者术前平均裸眼视力为0.12±0.05,平均最佳矫正视力为0.81±0.13;术后平均裸眼视力为0.95±0.05,平均最佳矫正视力为1.24±0.28;与术前相比,术后裸眼视力与最佳矫正视力均有明显提高,差异均有统计学意义(均为P<0.05)。所有患者术后均获得远、近立体视,与术前相比,术后远、近立体视均有明显改善,差异均有显著统计学意义(均为P<0.01)。术后屈光度和屈光参差患者参差度均较术前明显减小,差异均有统计学意义(均为P<0.05)。结论眼内屈光手术可充分矫正屈光不正,减小双眼间的屈光差异,使高度近视患者在获得清晰视觉的同时,有效改善立体视觉。

Objective To investigate the effects of intraocular refractive surgery on visual function in high myopia.Methods One hundred and sixty patients（320 eyes） with high myopia were treated with transparent lens extraction and intraocular lens implantation in phakic eye,respectively,the visual acuity,stereo vision and diopter at pre-operation and postoperative 1 month were examined,the results were statistical analyzed.Results The mean uncorrected and best corrected visual acuity at pre-operation were 0.12±0.05 and 0.81±0.13,which at post-operation were 0.95±0.05 and 1.24±0.28,the post-operation were higher than pre-operation,there were statistical differences（all P0.05）.All patients had far and near stereo vision at post-operation,which better than that at pre-operation,there were significant differences（all P0.01）.The diopter and anisometropia degree at post-operation were less than that at pre-operation,there were statistical differences（all P0.05）.Conclusion Intraocular refractive surgery can fully correct the ametropia and reduce the anisometropia between the double eyes,the patients not only obtain a clear vision,but also improve stereo vision at the same time.