【摘要】 目的评价非球面设计的折叠型人工晶状体(in-traocular lens,IOL)Tecnis对提高年龄相关性白内障患者术后视功能的作用。方法采用同期随机对照研究,选取年龄相关性白内障患者57例(61眼),年龄50～75岁,平均(63.5±6.4)岁,随机分为两组,观察组(28例,30眼)植入非球面人工晶状体Tecnis Z9001 IOL(Pharmacia),对照组(29例,31眼)植入传统球面人工晶状体Sensor AR40e IOL(Allergan)。术后第1个月、第3个月检查最佳矫正视力、无眩光及眩光环境下对比敏感度、角膜前表面及全眼球波前像差。结果"!最佳矫正视力:术后第1个月观察组均值为4.93±0.10,对照组为4.91±0.08(P=0.57);术后第3个月观察组均值为4.94±0.10,对照组为4.92±0.09(P=0.56)。观察组未发现超常视力。"#空间对比敏感度:在术后第1个月无眩光环境下,在6c/d(P=0.010)、12c/d(P=0.007)、18c/d(P=0.015)空间频率上差异有显著性;眩光环境下,在6c/d(P=0.001)、18c/d(P=0.000)空间频率上差异有显著性;术后第3个月无眩光环境下,在12c/d(P=0.008)、18c/d(P=0.000)空间频率上差异有显著性,眩光环境下,在12c/d(P=0.030)、18c/d(P=0.001)空间频率上差异亦有显著性。"$角膜像差:术后第1个月及第3个月组间C12、C7、C8差异均无显著性(P>0.05)。"%全眼球像差:术后第1个月及第3个月,5mm分析直径,两组C12差异均有显著性(P=0.000),而C7、C8差异则无显著性(P>0.05)。结论在白内障术后早期,非球面人工晶状体Tecnis Z9001 IOL可有效降低人工晶状体眼球差,改善有或无眩光环境下中高空间频率对比敏感度,提高术眼视功能。更多还原

【Abstract】 Objective To investigate the vision quality after implantation of Tecnis intraocular lens(IOL)in patients’ eyes with cataract.Methods Standand phacoemulsifications and IOL implantations were performed in 57(61 eyes)age-related cataract patients,aged from 50 to 75yrs(63.5±6.4yrs).Among which 28 patients(30 eyes)randomly selected Tecnis Z9001 IOLs as test group,and 29 patients(31 eyes)selected Sensor AR40e IOLs,as control group.Best corrected visual acuity(BCVA),corneal anterior aberration,total wavefront aberration and contrast sensitivity with or without glare were examined at 1 and 3 months postoperatively.Results 1 BCVA between 2 groups postoperatively is not significantly different(1-month,4.93±0.10 vs.4.91±0.08,P=0.57),(3-month,4.94±0.10 vs.4.92±0.09,P=0.56).No super vision was found in the test group.2 1-month postoperatively without glare,the test group showed significantly higher spatial contrast sensitivity than the control group in the 6 c/d(P=0.010),12 c/d(P=0.007)and 18 c/d(P=0.015)frequencies;with glare,the test group showed higher in the 6 c/d(P=0.001)and 18 c/d(P=0.000)frequencies.3-months after operation,contrast sensitivity without glare in the test group was significantly higher at frequency of 12 c/d(P=0.008)and 18 c/d(P=0.000)than the control group.With glare,the test group showed higher in the 12 c/d(P=0.030)and 18 c/d(P=0.001)frequencies.3 Corneal anterior aberration of 6.0mm analysis diameter:there was no significant difference in C12,C7,C8 between the two groups 1 and 3 months postoperatively(P>0.05).4 Total wavefront aberration:a significant difference was found between the two groups in C12(P=0.000)of 5mm analysis diameter 1 and 3 months postoperatively,but the C7,C8 was not(P>0.05).Conclusion Early period after cataract surgery,aspheric IOLs(Tecnis IOL)can decrease the spherical aberration of pseudophakic,increase the contrast sensitivity of middle and higher frequencies with or without glare and improve functional vision.更多还原