准分子激光原位磨镶术矫治近视性屈光参差对双眼视觉的临床观察

Clinical observation on the relation between laser in situ keratomileusis treating myopic anisometropia and binocular vision

目的探讨IJASIK手术矫治屈光参差对双眼视觉的影响，从高级视功能方面评价其临床价值。方法前瞻性对照研究。对45例双眼屈光度参差≥2．25D的近视患者分别检查术前裸眼、戴框架眼镜及LASIK术后的视力及双眼视功能。结果本组患者术后视力≥0．8的眼占91．57％，患者双眼视力术后较术前显著提高。手术前后的屈光度改变，差异均有统计学意义（均P〈0．05）。近视性屈光参差的患者手术前后除存在同时视功能之间差异不显著（P=0．431）外，融合功能、远、近立体视差异均有统计学意义（P=0．000）。屈光参差的度数越大，对双眼视功能的影响就越大（P〈0．05）。近视性屈光参差的患者LASIK手术后近立体视优于戴框架眼镜矫正（P〈0．05）。结论LASIK手术不仅可以提高屈光参差患者的双眼视力，对其双眼视功能的恢复也有积极的促进作用。LASIK手术是一种矫正屈光参差、提高视觉质量安全有效的方法。

Objective To analyze the effect of LASIK on visual quality of anisometropia, and evaluate its clinical value in the view of visual quality. Methods Prospective observational case series. Assayed the naked vision, glasses-corrected vision and binocular vision of 45 cases with anisometropia ≥ 2. 25D before and after the operation of LASIK. Results 91.57% of the eyes after the operation reached the vision ≥0. 8 ,which says a significant improvement for binocular vision after the operation（ P 〈 0. 05 ）. There was a significant difference on diopter between the pre-operation and post-operation （P 〈 0. 05）. As for anisometropia, there was no significant difference between simultaneous binocular visions （P = 0. 431 ） , but there was of great significance among combined, short and long distance stereopsis visions （P = 0. 000）. Binocular vision deteriorated as anisometropia increased （P 〈 0. 05 ）. The short distance stereopsis visions of LASIK-treated myopic anlsometropia were better than that of glasses-corrected patients （P 〈 0. 05 ） . Conclusion The operation of LASIK can improve the visual quality and resume the binocular vision. LASIK can correct anisometropia and its therapeutic efficacy deserves to confirm.