三种非球面单焦点丙烯酸酯人工晶状体植入术后视觉质量的临床观察

目的研究三种非球面丙烯酸酯人工晶状体植入术后患者在最佳矫正视力及明视下对比敏感度（contrast sensitivity,CS）的变化,评价白内障超声乳化联合单焦点非球面丙烯酸酯人工晶状体植入术后患者的视觉质量。方法选择2011年12月至2012年11月期间于我院行白内障超声乳化吸除联合人工晶状体植入术的年龄相关性白内障患者77例（90眼）。术前将患者随机分成三组：A组（25例,30眼）植入疏水性染黄色丙烯酸酯人工晶体;B组（28例,30眼）植入亲水性丙烯酸酯人工晶体及C组（24例,30眼）植入亲水性丙烯酸酯表面肝素处理人工晶体。所有患者于术后1个月、3个月均行最佳矫正视力检查及明视无眩光状态下的对比敏感度检查,所得结果进行统计学分析。结果患者术后1个月、3个月时各组之间最佳矫正视力无明显统计学差异（P〉0.05）,同时,明视无眩光对比敏感度检查结果（标准化后的对比敏感度值：lgCS）显示三组患者之间也无统计学差异（各组之间P均〉0.05）。结论上述三种人工晶体植入后视觉质量无明显差异;由于蓝光滤过型人工晶状体对视网膜的保护作用,因此植入染黄色滤过蓝光的人工晶状体是可取的。

CHnical observation on visual function in patients implanted three kinds of aspheric acrylic monofocal intraoeular lenses

Objective To evaluate best corrected visual acuity（BCVA） and contrast sensitivity（CS） under photopic condition with no glare in patients following implantation of three different kinds of aspheric acrylic monofocal intraocular lens. Methods 77 eases（90 eyes） of age-related cataract patients were selected,who were undergone phacoemulsification and intmocular lens（IOL） implantation in our hospital during December 2011 to November 2012. Preoperatively, the patients were randomly divided into three groups. Group 1 including 30 eyes（25 cases） were implanted with hydrophobic yellow-tinted acrylic IOLs; Group 2（30 eyes of 28 cases） with hydrophilie acrylic IOLs; Group 3（30 eyes of 24 cases） with hydrophilic acrylic surface heparin processing IOLs. All eyes were evaluated at 1 month and 3 months postoperatively. The BCVA and CS under photopie condition without glare were measured and underwent statistical analysis. Results There was neither statistically significant difference in the BCVA（P〉0.05）, nor statistically significant difference in contrast sensitivity results （after standardization of contrast sensitivity value： lgCS）（P〉0.05） between groups. Conclusions There were not marked differences of BCVA mad CS baween grot~s ofpatimts at the follow-up intervals of 1 mtmth and 3 mon~ The blue-filter type artificial lens protect the retina, thus, it is advisable to implant yellow-timed filter blue artificial lens.