人工晶状体后囊膜混浊激光治疗前后视功能的变化  

Effect of visual function on posterior capsule opacification before and after Nd:YAG laser posterior capsulotomy

作　　者：郭晓萍[1] 夏群[1] 王铮[1] 

机构地区：[1]北京医院眼科,100730

出　　处：《眼科》2006年第1期38-41,共4页Ophthalmology in China

摘　　要：目的探讨人工晶状体植入术后后囊膜混浊(PCO)对视功能的影响以及Nd:YAG激光治疗后的变化。设计前瞻性自身对照研究。研究对象接受超声乳化白内障摘除人工晶状体植入术57例(59眼)PCO患者。方法对57例(59眼) PCO患者行Nd:YAG激光治疗。于治疗前、后对患眼和对侧眼进行LogMAR视力、最佳矫正视力、对比敏感度、近距立体视锐度检查。主要指标 LogMAR视力、最佳矫正视力、对比敏感度、立体视锐度。结果激光治疗前患眼的平均LogMAR视力(0．22)及患眼各频区的对比敏感度值均较对侧眼显著低下;治疗后有明显提高(LogMAR视力0．00)。治疗后立体视阳性比率和达到中心立体视的比率,以及平均立体视锐度值均较治疗前有显著性改善。治疗后立体视锐度仍未达到正常者与最佳矫正视力低常、屈光参差及原有眼病有关。结论 PCO不仅影响患眼视力和对比敏感度,也影响立体视功能。Nd:YAG激光后囊膜切开术是治疗 PCO、恢复患者视力和重建正常立体视功能的有效手段。Objective To explore the influence of stereoscopic vision on the development of posterior capsule opacification （PCO） after intraocular lens implantation. The efficacy of Nd： YAG laser was studied. Design Case-controlled study. Participants 57 consecutive patients with POC（59 eyes with phacoemulsification and IOL implantation）. Methods A prospective observational study was conducted comprising 57 patients （59 eyes） who had postoperative PCO. Neodymium： YAG （Nd： YAG） laser posterior capsulatomy was performed on all patients following a standardizes procedure. Preoperative and postoperative evaluation included LogMAR visual acuity, best-corrected visual acuity（BCVA）, contrast sensitivity and stereoscopic vision. Main Outcome Measures LogMAR visual acuity, BCVA, contrast sensitivity and stereoscopic vision. Results The average LogMAR eyesight median of sick eye before laser treatment was （0.22±0.31） and the contrast sensitive degree of each frequency area was relatively lower than the opposite eye; After the treatment, there was evident improvement of the sick eye, and the LogMAR eyesight median of that was 0.00; The ratio of reaching the central spatial eyesight and the average sharpness degree beth improve much than ahead of treatment. Those whose spatial eyesight sharpness don＇t get normal after the low best remedy eyesight. Irregular dipodic and previous eye disease. Conclusions LogMAR visual acuity, BCVA, contrast sensitivity and stereoscopic vision were damaged markedly with PCO. Our results indicate that Nd： YAG capsulotomy may affect the reconstruction of stereoscopic vision. Nd：YAG laser posterior capsulotomy is a valuable and clinically relevant method for clinical treatment of PCO. （Ophthalmol CHN, 2006, 15： 38-41）

关 键 词：白内障/外科学 后囊膜混浊 激光治疗 立体视锐度 

分 类 号：R779.63[医药卫生—眼科]