论文部分内容阅读
目的:评价院内白内障手术和人工晶状体(IOL)植入术后不同类型PCO的频率和分布。方法:本横断、观察和描述性研究包括200名2003/2007年间提交白内障手术的患者。男123名,女77名,年龄43～77(平均62.4)岁之间。患者平均随访期为23(16～60)mo。随访期间通过一份问卷收集数据并使用SPSS软件输入计算机。使用方差分析和卡方检验分析。结果:不同类型的后囊膜混浊,包括纤维化(63%),残留上皮细胞增殖(15%)和混合型(22%)。由PCO引起的视力减退发生的平均时间为19.3(3～48)mo。年轻患者白内障手术后视力明显提高(P=0.0001),但PCO的发生率也多些。在老年组,纤维化后囊膜混浊明显多见,而混合型混浊是最不普遍的(P=0.016)。结论:目前的研究并没有测定PCO发生的任何特定的危险因素,最常见的类型是纤维化。所有的病例都经历定性和定量的视力减退,其中一些需要YAG激光晶状体囊膜切开术治疗,比较昂贵并有其自身的并发症。
Objective: To evaluate the frequency and distribution of different types of PCO after cataract surgery and intraocular lens (IOL) implantation in the hospital. METHODS: This transected, observational, and descriptive study included 200 patients who submitted cataract surgery in 2003/2007. 123 males and 77 females, aged from 43 to 77 (mean, 62.4) years of age. The average follow-up period was 23 (16-60) months. Data were collected through a questionnaire during follow-up and entered into the computer using SPSS software. Analysis of variance and chi-square test were used. RESULTS: Different types of posterior capsular opacities include fibrosis (63%), residual epithelial cell proliferation (15%), and mixed type (22%). The mean time to visual acuity due to PCO was 19.3 (3-48) mo. Young patients with visual acuity after cataract surgery was significantly improved (P = 0.0001), but the incidence of PCO more. In the elderly group, capsular opacification was more common after fibrosis, while mixed opacity was the least common (P = .016). CONCLUSIONS: The current study did not measure any specific risk factors for PCO, the most common type being fibrosis. All cases underwent qualitative and quantitative vision loss, some of which required YAG laser capsulotomy, were more expensive and had their own complications.