有晶体眼后房型人工晶状体植入术后视觉诱发电位、立体视觉的改变

Change of visual evoked potential and stereoscopic vision after posterior chamber phakic intraocular lens implantation

关键词:  高度近视  有晶体眼后房型人工晶状体植入术  视觉诱发电位  立体视觉

Key words:  high myopia  posterior chamber phakic intraocular lens implantation  visual evoked potential  stereoscopic vision

摘要:

[目的] 对16例32眼高度近视行有晶体眼后房型人工晶状体植入术，观察手术前后图形视觉诱发电位(P-VEP) 、立体视觉的改变，从客观角度研究该手术的有效性。[方法] 收集济宁医学院附属医院近3年收治并行有晶体眼后房型人工晶状体植入术，并能按时随访的高度近视16例32眼，术前及术后1个月均行P-VEP、立体视觉检查，比较观测P100的波幅、潜时及波形和远近立体视觉。[结果] 术前波幅（3.201±0.899）μV，潜时（126.116±4.096）ms，术后波幅（6.355±1.327）μV，潜时（114.516±7.085）ms。与术前相比，术后P100的波幅上升、潜时缩短、远近立体视觉的增加均有显著性意义（P<0.05）。[结论] 有晶体眼后房型人工晶状体植入术安全有效，值得临床推广。

Abstract:

[Objective] To evaluate the efficacy of the surgery of posterior chamber phakic intraocular lens implantation objectively by observing the change of pattern visual evoked potential (P-VEP) and stereoscopic vision of patients with high myopia before and after the surgery. [Methods] This study included 32 eyes of 16 patients with high myopia, All the patients received posterior chamber phakic intraocular lens implantation, and postoperative clinical observation was followed-up. The P-VEP and stereoscopic vision were recorded before and after surgery. The change was compared in amplitude （AMP）, prolongation of latency（PL）of P100 and stereoscopic vision. [Results] AMP of preoperation was （3.201±0.899）μV，PL of preoperation was （126.116±4.096）ms，AMP of postoperation was （6.355±1.327）μV，PL of postoperation was （114.516±7.085）ms before surgery. After surgery, the amplitude of P100 improved greatly (P<0.05), prolongation of latency of P100 had significant difference (P<0.05), and stereoscopic vision was significantly higher than that before surgery (P<0.05). [Conclusion] Posterior chamber phakic intraocular lens implantation is a safe and effective surgery. It is worthy to be used clinically.