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目的 观察老年性白内障摘除术后早期患者双眼视觉的恢复情况 ,并探讨影响其恢复的原因。方法 对 5 5例 (6 6只眼 )老年性白内障患者行囊外白内障摘除人工晶状体植入术 (ECCE组 )或超声乳化白内障吸除人工晶状体植入术 (PHACO组 ) ,术后检查矫正视力、屈光度数 ,以及双眼同视、融合及远、近距离立体视功能。结果 术前术眼视力ECCE组低于PHACO组 ,差异有显著意义 (P <0 0 5 ) ;术后术眼和非术眼视力两组比较 ,差异均无显著意义 (P >0 0 5 )。术后ECCE组双眼柱镜屈光度数差值较大 ,与PHACO组比较差异有非常显著意义 (P <0 0 1)。两组患者术后均具有较好的双眼同视和融合功能。ECCE组和PHACO组分别有 83 3%和 94 7%的患者获得不同程度的远距离立体视 ,差异无显著意义 (P >0 0 5 ) ;分别有 2 8%和 2 1 1%的患者获得黄斑中心近距离立体视 ,差异有显著意义(P <0 0 5 )。结论 老年性白内障摘除术后早期患者的双眼视觉未完全恢复 ;术前长期的视觉抑制 ,尤其是单眼抑制和术后的屈光参差可能是影响双眼视觉恢复的原因。
Objective To observe the recovery of binocular vision in patients with senile cataract extraction and to explore the reasons that affect the recovery. Methods Fifty-five (66 eyes) senile cataract patients underwent extracapsular cataract extraction with intraocular lens implantation (ECCE) or phacoemulsification with intraocular lens implantation (PHACO). Postoperative visual acuity, Refraction, as well as eyes binocular fusion and far, close stereovision. Results The preoperative visual acuity in ECCE group was lower than that in PHACO group (P <0.05), but there was no significant difference between the two groups (P> 0.05) . Postoperative ECCE group binocular varicosity difference is larger, compared with the PHACO group has a significant difference (P <0.01). Both groups had better binocular vision and fusion after operation. 83.3% and 94.7% of patients in ECCE group and PHACO group had different degrees of distance stereopsis, with no significant difference (P> 0.05); 28% and 21.1% There was a significant difference between the macular center and stereo vision (P <0.05). Conclusions Early binocular vision of patients with senile cataract extraction did not recover completely. Long-term preoperative visual acuity, especially monocular repression and postoperative anisometropia, may be responsible for the binocular vision recovery.