Optical performance after bilateral implantation of apodized aspheric diffractive multifocal intraocular lenses with +3.00‐D addition power

Purpose: To determine whether bilateral implantation of an aspheric apodized diffractive multifocal intraocular lens (IOL) with +3.00 diopters (D) results in optical adverse effects compared with an aspheric monofocal IOL. Methods: In a prospective, randomized study of 204 eyes (102 patients) with bilateral implantation of an AcrySof ReSTOR SN6AD1 IOL or an AcrySof IQ SN60WF IOL, binocular uncorrected (UDVA) and corrected distance visual acuities (CDVA), uncorrected (UIVA) and distance‐corrected intermediate visual acuities (DCIVA), uncorrected (UNVA) and distance‐corrected near visual acuities (DCNVA), defocus curve, intraocular straylight, wavefront aberrations, modulation transfer functions (MTF) and patient questionnaires were evaluated postoperatively. Results: Both groups resulted in similar UDVA and CDVA (p > 0.05), whereas the multifocal IOL group performed significantly better UIVA and DCIVA at 50, 60 cm, and better UNVA and DCNVA at 40 cm (p ≤ 0.001). Higher intraocular straylight was obtained in the multifocal IOL group (p = 0.016). Total, higher‐order, spherical and coma aberrations performed similar in both groups (p > 0.05). MTF was lower in the multifocal IOL group than in the monofocal IOL group with 3.0‐mm pupils at 5 and 10 cycles per degree (cpd). Although patients in the multifocal IOL group complained more glare/flare, problems with night vision, and halos, they reported excellent spectacle independence, and high satisfaction. Conclusions: Compared with the AcrySof IQ IOL, the ReSTOR SN6AD1 IOL provided excellent visual outcomes, satisfactory spectacle independence without compromising wavefront aberrations; however, optical adverse effects with respect to higher intraocular straylight and lower MTF at lower spatial frequency were demonstrated.     

Comparison of an aspheric monofocal intraocular lens with the new generation monofocal lens using defocus curve

Purpose:The aim of this study was to compare the visual outcomes of two monofocal intraocular lenses (IOLs), with emphasis on the defocus curve.Methods:A total of 116 consecutive eyes with cataract, undergoing phacoemulsification with IOL implantation were included in the observational case series, and divided into two groups. 71 eyes were implanted with Tecnis Eyhance and 45 with Tecnis 1 monofocal IOL. Eyes with ocular comorbidities, previous ocular surgeries and corneal astigmatism >1 Diopters (D) were excluded from the study. Complete ophthalmic evaluation including uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), uncorrected intermediate visual acuity (UIVA), corrected intermediate visual acuity (CIVA), uncorrected visual acuity (UNVA), corrected near visual acuity (CNVA) was noted and defocus levels ranging from - 4.00 D to + 1.00 D were plotted postoperatively in both groups.Results:Uncorrected intermediate visual acuity (UIVA) and uncorrected near visual acuity (UNVA) was significantly better in Tecnis Eyhance group compared to Tecnis 1 monofocal. Both the IOLs have similar performance for distance vision but visual acuity at intermediate and near is significantly better with Tecnis Eyhance compared to Tecnis 1 piece IOL.Conclusion:Tecnis Eyhance IOL with its better defocus curve, not only provides good distance, but intermediate vision as well. With significantly better visual acuity across the range of near and intermediate vision, Tecnis Eyhance IOL can prove to be a viable and reasonable option for patients who are more dependent on intermediate vision in daily activities.     

区域折射型多焦点人工晶状体与非球面单焦点人工晶状体植入术后患者客观视觉质量的短期对比研究

目的对比区域折射型多焦点人工晶状体(MIOL)SBL－3与非球面单焦点人工晶状体Akreos Adapt AO植入术后短期内患者的客观视觉质量。 方法选取2017年6月至2018年1月在北京大学第一医院眼科诊断为单纯老年性白内障,并行白内障超声乳化吸除联合人工晶状体植入术的患者26例(35只眼)为研究对象。其中,植入SBL－3晶状体有15只眼,植入AO晶状体有20只眼。术后1个月检查SBL－3组及AO组患者术眼的裸眼远视力(UDVA)、裸眼中视力(UIVA)、裸眼近视力(UNVA)、矫正远视力(CDVA)、矫正近视力(CNVA)、最佳矫正远视力下的中视力(DCIVA)及最佳矫正远视力下的近视力(DCNVA),并使用视觉质量分析仪评估两组患者瞳孔直径4 mm与6 mm的全眼、角膜及眼内的总高阶像差、球差及点扩散函数。术后1个月,绘制SBL－3组患者术眼的离焦曲线。两组患者术眼的UDVA、CDVA、CNVA、UIVA、UNVA、DCIVA、DCNVA及视觉质量以均数±标准差( ±s)表示,行非参数Mann－Whimey U检验比较。 结果术后1个月时,SBL－3组及AO组患者术眼的UDVA、CDVA及CNVA差异均无统计学意义(Z＝－0.99,0,－1.84;P>0.05);SBL－3组患者术眼的UIVA、UNVA、DCIVA及DCNVA分别为0.32±0.08、0.44±0.18、0.30±0.10及0.33±0.11,均优于AO组的0.25±0.10、0.27±0.09、0.20±0.07及0.21±0.10,差异均有统计学意义(Z＝－2.26,－3.13,－1.84,－2.17;P<0.05)。视觉质量评估显示,瞳孔直径为4 mm的两组患者术眼球差的差异无统计学意义(Z＝－1.50,－1.04,－0.82;P>0.05);瞳孔直径为6 mm的两组患者术眼球差的差异无统计学意义(Z＝－0.12,－1.93,－1.16;P>0.05)。SBL－3组瞳孔直径4 mm与6 mm的全眼总高阶像差分别为0.45±0.12与1.41±0.21,高于AO组的0.26±0.12与0.82±0.13,差异均有统计学意义(Z＝－3.45,－3.24;P<0.05)。SBL－3组患者术眼的点扩散函数为0.05±0.02,低于AO组的0.11±0.07,差异有统计学意义(Z＝－2.60,P<0.05)。SBL－3组患者术眼的离焦曲线显示波峰出现在0 D处,在－1.0 D至－3.0 D范围内的曲线较平稳,下降不明显;在－3.0 D至－5.0 D范围内的曲线快速下降。 结论Adapt AO晶状体术后客观视觉质量优于SBL－3晶状体,但SBL－3晶状体在中、近视力的应用效果优于Adapt AO晶状体。SBL－3晶状体的离焦曲线波峰出现在0 D处,在－1.0 D至－3.0 D范围内的曲线较平稳,下降不明显。本研究还需扩大样本量并长期观察其效果及安全性。     

旋转非对称折射型多焦点人工晶状体植入术后早期效果

目的：观察白内障超声乳化联合旋转非对称折射型多焦点人工晶状体（IOL）植入术后患者的早期 效果。方法：前瞻性自身前后对照研究。选择2017年1-12月在武汉爱尔眼科医院行白内障超声乳化联合旋转非对称折射型多焦点IOL植入的患者36例（40眼），术后随访3个月。分别观察裸眼远、中、近视力（LogMAR），矫正远视力（LogMAR），术后等效球镜度（SE），离焦曲线，调制传递函数（MTF），眼内高阶像差，并统计患者术后视功能指数量表评分及脱镜率。数据采用配对t检验和非参数Wilcoxon配对秩和检验。结果：术后3个月裸眼远、中、近视力及矫正远视力均较术前增加（P<0.05），72%裸眼远视力优于0.1，98%矫正远视力优于0.1；88%术后SE在±1.0 D以内；离焦曲线在0.0 D及-2.5 D具有峰值，+1.0～-4.0 D屈光范围内视力均优于0.25。术后3 mm瞳孔直径下MTF数值均较术前提高（P<0.05），眼内总像差、垂直彗差及垂直三叶草较术前增加（P<0.05）。患者术后3个月视功能指数量表得分为1.0（0.0，2.0）。92%的患者看远、看近均可完全脱镜。结论：非对称区域折射型多焦点IOL能提供令人满意的远、近视力，亦能保持较大范围的中距离视力，患者术后具有较好的视觉质量及较高的生活质量。     

三焦点人工晶状体植入术后中期立体视功能及视觉质量研究

目的　评价三焦点非球面衍射型人工晶状体植入术后的双眼立体视功能及视觉质量。方法　非随机同期对照临床研究。对38例76眼单纯性白内障患者行超声乳化吸出联合人工晶状体植入术，依据植入人工晶状体类型不同分为2组:双眼均植入三焦点人工晶状体组18例36眼为三焦组，双眼均植入单焦点人工晶状体组20例40眼为单焦组。随访记录2组患者术后双眼近立体视功能、视力［单眼及双眼裸眼远距离视力（uncorrected distance visual acuity，UDVA）、裸眼中距离视力（uncorrected intermediate visual acuity，UIVA）、裸眼近距离视力（uncorrected near visual acuity，UNVA）、矫正远距离视力（corrected distance visual acuity，CDVA）、矫正远视力基础上的中距离视力（distance-corrected intermediate visual acuity，DCIVA）、矫正远视力基础上的近距离视力（distance-corrected near visual acuity，DCNVA）］和等效球镜度。利用VF-14-CN量表行主观问卷调查，对夜间光晕及老视眼镜依赖与否行问卷并记录；利用双通道视觉质量分析系统测量客观散射指数、调制传递函数截止频率（modulation transfer function，MTF-cutoff）、斯特列尔比值（strehl ratio，SR）及100%、20%、9%对比度视力（contrast visual acuity，CVA）等指标。结果　三焦组术后近立体视功能明显优于单焦组（P=0.001）。三焦组和单焦组所有术眼术后单眼UDVA较术前均明显提高（均为P<0.05）。三焦组单眼UDVA、UIVA、UNVA均明显优于单焦组（均为P<0.05）；三焦组单眼DCDVA与单焦组差异无统计学意义（P>0.05），但DCIVA和DCNVA均明显优于单焦组（均为P<0.01）。三焦组双眼UDVA、UIVA、UNVA均明显优于单焦组（均为P<0.01）；三焦组双眼DCDVA与单焦组比较差异无统计学意义（P>0.05），但DCIVA和DCNVA均明显优于单焦组（均为P<0.01）。两组等效球镜度差异无统计学意义（P=0.437）。VF-14量表评分单焦组明显低于三焦组（P=0.000）。90.0%单焦组患者依赖老视眼镜，5.6%三焦组患者依赖老视眼镜，差异有统计学意义（P=0.000）；两组眩光发生率差异无统计学意义（P=0.437）；两组夜间光晕发生率（单焦组2/20，三焦组7/18）差异有统计学意义（P=0.027）。三焦组和单焦组客观散射指数、斯特列尔比值、调制传递函数截止频率差异均无统计学意义（均为P>0.05）。三焦组100%CVA、20%CVA均好于单焦组（均为P<0.01）；9%CVA两组差异无统计学意义（P>0.05）。结论　双眼植入三焦点人工晶状体患者可获得良好的立体视功能和视觉质量，术后满意度高。     

区域折射型与衍射型多焦点人工晶状体植入术后视觉质量对比研究

目的　比较区域折射型多焦点人工晶状体（multifocal intraocular lens，MIOL）和衍射型MIOL植入术后的全程视力和视觉质量。方法　采用前瞻性非随机病例对照研究。收集2016年6月至2017年7月在郑州大学第一附属医院眼科行超声乳化白内障摘出联合人工晶状体（intraocular lens，IOL）植入术患者50例60眼，其中行区域折射型MIOL植入术者28例33眼，为折射组，行衍射型MIOL植入术者22例27眼，为衍射组。术后1个月、3个月、6个月定期随访，检查患者视力、离焦曲线、对比敏感度、高阶像差及问卷调查，并对结果进行统计学分析。结果　术后6个月，折射组的裸眼中视力为（0.169±0.184）logMAR，优于衍射组的（0.331±0.145）logMAR （P＜0.05）。两组裸眼远视力、最佳矫正远视力、裸眼近视力比较，差异均无统计学意义（均为P＞0.05）。瞳孔直径为3 mm时折射组的彗差和三叶草分别为(0.13±0.06）μm、(0.21±0.14）μm，分别大于衍射组的(0.06±0.03）μm、(0.06±0.05）μm；而瞳孔直径为5 mm时折射组的彗差和三叶草分别为(0.38±0.17）μm、(0.59±0.21）μm，分别大于衍射组的(0.16±0.09）μm、(0.41±0.33）μm，差异均有统计学意义（均为P＜0.05）。在暗视条件下3 c·d^-1、6 c·d^-1和暗视+眩光条件下各空间频率的对比敏感度折射组优于衍射组，差异均有统计学意义（均为P＜0.05），暗视条件下12 c·d^-1、18 c·d^-1时两组的对比敏感度差异均无统计学意义（均为P＞0.05）。除中视力满意度折射组为100.0%，优于衍射组的74.1%（P＜0.05），在眩光、光晕干扰程度，远、近、夜间、暗处视力和总体满意度方面，两组差异均无统计学意义（均为P＞0.05）。结论　区域折射型MIOL与衍射型MIOL相比，裸眼中视力好，对比敏感度高，而彗差和三叶草差较大。     

A novel standardized test system to evaluate dynamic visual acuity post trifocal or monofocal intraocular lens implantation: a multicenter study

ObjectivesTo compare the dynamic visual acuity (DVA) following implantation of trifocal with monofocal intraocular lenses (IOL) and using a novel test system.MethodsThe present research was a retrospective, multicenter clinical study. Two hundred and ten eyes of 149 patients that underwent cataract phacoemulsification and IOL implantation were enrolled. One hundred and ten eyes of patients received trifocal (AT LISA tri839MP, Carl Zeiss Meditec, Germany) and 100 eyes received monofocal (Tecnis ZCB00, Abbott, United States) lenses and were evaluated 3 months after implantation. Outcome measures included monocular uncorrected distance (UDVA), intermediate (UIVA) and near (UNVA) visual acuity and best corrected distance visual acuity (BCDVA; logMAR units); contrast sensitivity under photopic, mesopic, with glare conditions; and dynamic visual acuity using a self-developed system.ResultsThere was no statistically significant difference in baseline characteristics between groups. Monocular UDVA, UIVA, and UNVA were significantly better (all p < 0.001) in the trifocal IOL group, but not BCDVA. The trifocal IOL group showed better contrast sensitivity under photopic, mesopic, with or without glare conditions (p < 0.05) and statistically significantly better dynamic vision at 15, 30, 60, and 90 degrees per second (dps) compared with the monofocal group (all p < 0.001). The strength of positive association only between UIVA and dynamic visual acuity increased as the velocity increased, but not UDVA or UNVA.ConclusionsDiffractive trifocal IOL provides better postoperative full range vision acuity, contrast sensitivity, and dynamic vision compared with monofocal IOLs. And intermediate visual acuity is increasingly associated with DVA as the velocity increasing.Subject terms: Quality of life, Outcomes research     

双眼植入多焦和单焦人工晶状体后视力及立体视比较研究

目的 比较双眼植入ReSTOR+3D非球面多焦点人工晶状体(MIOL)与传统球面单焦点人工晶状体(SIOL)后全程视力和立体视觉情况.方法 前瞻性临床研究.对2009年5月至2010年6月在上海公利医院眼科治疗的病人18例(36只眼)植入ReSTOR+3DMIOL(SN6ADI),20例(40只眼)植入传统球面SIOL(SNt0AT).以术后第二眼为标准随访3个月.测两组的远、中、近视力及近立体视锐度,进行相应统计学分析.结果 术后裸眼及最佳远、近矫正视力两组无明显差异(t值分别为1.14、1.74、0.99,P＞0.05),在25cm、30cm、33cm、40cm、50cm、60cm、70cm近中距离上,MIOL组远视力矫正下近视力均优于SIOL组(t值分别为14.02、20.28、24.52、32.74、21.91、11.66、9.76,P＜0.01).MIOL组裸眼近立体视锐度优于SIOL组(P＜0.05).双眼矫正近视力后,两组的立体视觉差异无统计学意义(X2=64.97 P＞0.05).结论 ReSTOR+3D多焦点IOL较单焦点IOL可提供更好的近、中视力和裸眼近立体锐度,实现了很高地脱镜率,良好地全程视力使其拥有广泛的应用价值.

Abstract：

Objective To compare visual acuity from far to near and stereoscopic vision in patients who underwent bilateral implantation of aspheric diffractive multifocal intraocular lens (IOLs)with monofocal IOLs. Methods This prospective study comprised patients having implantation of an aspheric diffractive multifocal ReSTOR SN6AD1 IOL with a C3.0 D add (SN6AD1) or a monofocal IOL (SN60AT). Visual acuity from far to near distances and stereoscopic vision were evaluated 3months postoperatively. Results Multifocal IOL group comprised 36 eyes of 18 patients. Monofocal IOL group comprised 40 eyes of 20 patients. The differences between groups of uncorrected and corrected distance visual acuity and corrected near visual acuity had not statistically significant (P＞0.05).The mean distance-corrected visual acuity at 25 cm, 30 cm, 33 cm, 40 cm, 50 cm, 60 cm, 70 cm were better in the multifocal group than in the monofocal group (P＜0.01). The near stereoscopic vision. in the multifocal group were better than in the monofocal group (P＜0.01). When near corrected,there were no significant difference between the stereoscopic vision for the multifocal and monofocal groups (P＞0.05). Conclusions The diffractive multifocal IOL with a low add power provides significantly better intermediate, near visual acuity than the monofocal IOL. When near uncorrected, the multifocal group has better stereoscopic vision. Spectacle independence is higher with the multifocal intraocular lens.     

衍射型多焦点人工晶状体植入术后视功能的观察

目的:通过观察白内障超声乳化摘除联合ReSTOR衍射型多焦点人工晶状体植入术后患者的视力、受眩光、光晕干扰程度及老视镜脱镜率,评价衍射型多焦点人工晶状体眼的视觉质量。方法:将60例(68眼)年龄相关性白内障患者随机分为2组,分别行白内障超声乳化摘除并植入ReSTOR SA60D3衍射型多焦点人工晶状体(多焦组)和Natural SN60AT单焦点人工晶状体(单焦组),观察术后裸眼及最佳矫正远、近视力,受眩光、光晕干扰程度及阅读时戴镜情况。结果:两组患者术后裸眼远视力、最佳矫正远视力和最佳矫正近视力均无显著性差异(P>0.05)。多焦组术后裸眼近视力和最佳视远矫正时近视力明显优于单焦组(P<0.05),且近距离阅读时不需戴老视镜的患者多焦组22例(73.3%),而单焦组仅4例(13.3%),差异有统计学意义(P<0.05)。多焦组患者术后受眩光、光晕干扰较单焦组明显(P<0.05)。结论:ReSTOR衍射型多焦点人工晶状体能提供良好的远、近视力,有效降低患者对老视镜的依赖,提高了白内障患者术后的视觉质量。     

多焦点人工晶状体与非球面人工晶状体植入术后视觉质量的临床研究

目的客观与主观检测结合评价非球面设计的多焦点与单焦点人工晶状体植入术后的视觉质量。方法132例（207只眼）白内障患者分别植入非球面的多焦点人工晶状体AcrySof IQ ReSTOR IOL和单焦点人工晶状体AcrySof IQ IOL。记录患者手术后的裸眼远、近视力,矫正远、近视力。术后3个月检测患者明视、暗视和暗视眩光状态的对比敏感度。采用VF-14（Visual function-14）视功能和生存质量调查问卷评价患者主观的视觉质量。结果术后两组裸眼远视力（t=0．61,P〉0．05）最佳矫正近视力（t=1．877,P〉0．05）差异无统计学意义。非矫正近视力多焦点组优于单焦点组（t=11．38,P〈0．001）,单焦点组在明光、暗光、暗光眩光条件下各空间频率对比敏感度均高于多焦点组,明光条件下3cpd和6cpd空间频率差异有统计学意义（P〈0．05）,暗光眩光条件下中高频率差异有统计学意义（P〈0．05）,两组无患者存在严重的视觉干扰现象。两组术后视远时脱镜率均大于98％,视近时脱镜率多焦点组为78．9％,单焦点组为10．9％。结论与单焦点人工晶状体相比,除了对比敏感度下降,多焦点人工晶状体能提供令人满意的术后视功能和生活质量,患者能获得较高的视觉质量。     

双眼多焦点人工晶状体ReSTOR植入术后视功能观察

目的 通过比较植入单、多焦人工晶状体(IOL)术后双眼视功能情况,以了解国人植入多焦点IOL的有效性及安全性.方法 选择年龄相关性白内障患者43例,按患者意愿植入多焦点或单焦点IOL.单焦点人工晶状体(MoIOL)组:双眼植入AcrysofNatural25例50只眼.多焦点人工晶状体(MIOL)组:双眼植入AcrysofReSTOR 18例36只眼.观察两组组患者术后双眼裸眼远视力(UCDVA)、裸眼近视力(UCNVA)、最佳矫正远视力(BCDVA)、最佳矫正近视力(BCNVA)、远矫正下的近视力(DCNVA),中间距离视力(40、60、80cm),对比敏感度(CS),视觉症状.结果 MIOL组UCNVA、DCNVA、中间距离视力均优于单焦点人工晶状体MoIOL组,差异有统计学意义(P＜0.05).两组之间,CS无明显差异.MIOL组术后视觉症状较轻,脱镜率80%,患者满意度高.结论 双眼植入MIOL能提供更好的近、中距离视力,视觉症状轻,更好地提高白内障患者术后生活质量.     

双眼多焦点人工晶状体术后远期双眼视觉变化

目的探讨双眼植入多焦点人工晶状体(MIOL)后远期患者视觉质量的恢复情况。方法观察16例32眼植入MIOL的患者和13例26眼双眼植入单焦点人工晶状体(SIOL)的患者术后6个月以上视力、立体视觉和影像不等的改变,并进行问卷调查。结果MIOL眼远期近视力和矫正远视度数下的近视力明显较SIOL好;裸眼状态下MIOL组近立体视锐度明显优于SIOL组;两组患者均只有一例出现影像不等的现象;MIOL组脱镜率明显高于SIOL组。结论双眼植入MIOL可以获得满意的双眼视觉及正常的远近立体视锐度,明显提高患者的视觉质量。     

连续视程IOL植入术后患者主观视觉质量及阅读能力的临床观察

目的:比较双眼及单眼植入Tecnis Symfony连续视程人工晶状体(IOL)术后患者主观视觉质量、阅读流畅性及术后满意度的差异.方法:对我院48例71眼行白内障超声乳化吸除联合IOL植入术的患者进行回顾性分析,根据植入IOL类型不同分为2组,其中23例46眼双眼植入Symfony IOL为双眼组,25例25眼一眼植...     

多焦点人工晶状体植入术后视觉质量和阅读能力的研究

目的:研究多焦点人工晶状体(IOL)植入术后白内障患者的视觉质量及阅读能力。方法:前瞻性临床研究。选择2018年6月至2019年10月于重庆医科大学附属第一医院眼科就诊并行双眼白内障手术的患者共75例(150眼),依据患者选择的IOL进行分组,双眼植入Tecnis ZCB00 IOL 25例(50眼)作为单焦组,双眼植入Tecnis ZMB00 IOL 25例(50眼)作为双焦组,双眼植入AT Lisa tri.839MP IOL 25例(50眼)作为三焦组,对比3组患者术后3个月时的祼眼远视力(UDVA)、祼眼中视力(UIVA)、祼眼近视力(UNVA) (LogMAR)及阅读能力。使用NEI-RQL-42量表中文版评价3组患者术后视觉质量的差异。数据采用卡方检验、方差分析、Kruskal-Wallis检验、Mann-Whitney U检验进行统计分析。 结果:共75例(150眼)患者纳入研究。3组间UDVA差异无统计学意义( H=3.187, P=0.203)。三焦组UIVA(0.2±0.1)优于双焦组(0.3±0.2) ( Z=-2.041, P=0.041)和单焦组(0.3±0.3) ( Z=-2.142, P=0.032)。三焦组UNVA(0.3±0.2)和双焦组UNVA(0.3±0.2)优于单焦组(0.4±0.2) ( t=2.332, P=0.017;t=3.014, P=0.036)。3组阅读视力( F=0.421, P=0.658)、阅读速度( F=1.754, P=0.182)、阅读错误率( H=6.347, P=0.052)差异均无统计学意义。三焦组近视力维度得分(92±14)和双焦组近视力维度得分(100±11)均高于单焦组(50±42) ( U=-3.139, P=0.005;U=-3.726, P=0.001);三焦组中视力维度得分(100±12)高于双焦组(75±25)和单焦组(25±75) ( U=-2.758, P=0.017;U=-3.145, P=0.002)。三焦组脱镜率维度得分(100±25)和双焦组脱镜率维度得分(100±40)高于单焦组(30±100) ( U=-3.004, P=0.008;U=-3.766, P=0.001)。 结论:多焦点IOL植入患者可获得与单焦点IOL植入患者配戴老花镜时相同的近距离视觉质量;AT Lisa tri.839MP IOL与Tecnis ZMB00 IOL可提供相同的远近视力及近距离阅读能力,但前者中距离视觉质量更佳。     

衍射型多焦点人工晶状体ReSTOR植入术后远中近视力比较

目的:比较白内障超声乳化联合植入Acrysof ResToR及Acrysof Natural的临床效果。方法:随机化临床试验,选择年龄性白内障患者,ReSTOR组30例36眼,植入ReSTOR SA60D3衍射型多焦点人工晶状体(MIOL),Natural组28例30眼,植入NaturalSN60AT单焦点人工晶状体(SIOL)。观察术后未矫正远视力(UCDVA)、未矫正近视力(UCNVA)、最佳矫正远视力(BCDVA)、最佳矫正近视力(BCNVA)、远矫正下的近视力(DCNVA)。中间距离视力(40,60,80cm)和视觉症状。结果:两组患者UCDVA,BCDVA和BCNVA无显著差异,术后ReSTOR组UCNVA,DCNVA及中间距离视力明显优于Natural组(P<0.05)。ReSTOR组术后4wk UCNVA,UCDVA明显优于1wk。术后12wk,ReSTOR组术后UCNVA优于中间距离视力(40cm),差异有统计学意义。而中间距离视力之间(40与60cm;60与80cm)无统计学差异。ReSTOR组患者术后受眩光和光晕影响较Natural组明显(P<0.05),但均可忍受。ReSTOR组戴镜率低于Natural组,差异有统计学意义(P<0.05)。结论:新型衍射型MIOL ReSTOR能提供良好的全程视力,有效减低患者对老视镜的依赖,提高白内障患者术后的视觉质量。     

非球面多焦点IOL眼的对比敏感度和拟调节力分析

目的评价白内障超声乳化摘出联合非球面衍射型多焦点人工晶状体植入术后患者的视觉质量和拟调节力。方法 54例(75眼)于我院行白内障超声乳化摘出联合人工晶状体植入术的患者进行分组,其中SN6AD3组17例(25眼)植入非球面多焦点人工晶状体Acrysof ReSTOR SN6AD3,SN60D3组18例(25眼)患者植入多焦点人工晶状体Acrysof ReSTOR SN60D3,SN60WF组19例(25眼)植入单焦点非球面人工晶状体Acrysof SN60WF。术后3个月时检查裸眼及矫正远视力、裸眼近视力、最佳矫正远视力下的近视力、拟调节力、对比敏感度,并比较3组患者脱近用镜率。结果术后3个月,三组患者裸眼远视力和最佳矫正远视力差异均无统计学意义(均为P>0.05);SN60D3组和SN6AD3组术后裸眼近视力(0.205±0.111、0.192±0.120)和最佳矫正远视力下的近视力(0.212±0.114、0.250±0.130)明显优于SN60WF组(0.661±0.278与0.661±0.278;均为P<0.01),SN60D3组和SN6AD3组间差异无统计学意义(P>0.05)。眩光及无眩光时,在各空间频率下SN60WF组和SN6AD3组对比敏感度均大于SN60D3组。SN6AD3组调节幅度为(0.925±0.549)D,SN60D3组为(0.964±0.582)D,SN60WF组为(0.390±0.235)D,SN6AD3组与SN60D3组间差异无统计学意义(P=0.993),SN6AD3组与SN60D3组的调节幅度均高于SN60WF组(P<0.01)。SN6AD3组脱近用镜率80%、SN60D3组72%,两组均优于SN60WF组(24%,均为P<0.01)。结论 ReSTOR非球面衍射型多焦点人工晶状体SN6AD3能提供良好的远、近视力,植入后术眼具有较SN60D3更高的对比敏感度,能有效改善白内障患者术后的视觉质量。     

多焦点散光型与单焦点散光型人工晶状体植入术后视觉质量对比

目的 比较多焦点散光型人工晶状体（IOL）和单焦点散光型IOL植入术后的视觉质量。方法 回顾性非随机对照研究。角膜散光大于1.0 D的白内障患者27例（32眼）,其中8例（10眼）植入非球面多焦点散光型IOL（Acrysof IQ Restor toric IOL,SND1T,SND1T组）,19例（22眼）植入非球面单焦点散光型IOL（Acrysof IQ toric IOL,SN6AT,SN6AT组）纳入本研究。术后1、3、6个月观察2组远近裸眼视力（UCVA）、最佳矫正视力（BCVA）,残余散光,IOL旋转度,对比敏感度,调制传递函数（MTF）以及全眼波前像差等。采用独立样本t检验及重复测量方差分析对数据进行分析。结果 术后各时间点,SND1T组近UCVA均明显优于SN6AT组（t=11.683、8.252、7.384,P<0.01）;术后6个月,SND1T组在有眩光低空间频率（3 c/d）的对比敏感度低于SN6AT组（t=2.086,P<0.05）,其余空间频率差异无统计学意义;3 mm瞳孔下,SND1T组在低空间频率（5、10 c/d）的MTF值低于SN6AT组（t=2.050、2.078,P<0.05）,其余空间频率差异无统计学意义。术后各时间点,2组间远UCVA、远近BCVA差异均无统计学意义;术后6个月,2组间术前术后角膜散光差值、IOL旋转度差异均无统计学意义;2组在无眩光所有空间频率的对比敏感度、5 mm瞳孔下各空间频率的MTF值以及3 mm和5 mm瞳孔下的全眼总像差、总高阶像差、球差、彗差的差异均无统计学意义。结论 与单焦点散光型IOL相比,多焦点散光型IOL可获得良好的全程视力,并能有效矫正散光,同时提供理想的视觉质量。     

Clinical outcomes after femtosecond laser assisted cataract surgery with implantation of the TECNIS Symfony intraocular lens

AIM: To evaluate the clinical outcomes in terms of vision across distances (near, intermediate, and far), contrast sensitivity and subjective patient satisfaction after femtosecond laser-assisted cataract surgery (FLACS) with implantation of an extended range of vision (ERV) intraocular lens (IOL). METHODS: Forty patients (55 eyes) undergoing bilateral or monocular FLACS with implantation of the ERV IOL TECNIS Symfony (Johnson & Johnson Vision) were enrolled. Uncorrected distance (UDVA), intermediate (UIVA) and near visual acuities (UNVA) were evaluated at 3mo after surgery, as well the defocus curve, contrast sensitivity, patient satisfaction and spectacle independence. RESULTS: No severe complications occurred. All eyes showed a central position of the IOL in the capsular bag without tilting at 3mo after surgery. 3mo postoperative mean logMAR visual acuity at 5 m, 67 cm and 40 cm were -0.04 ±0.08, -0.17±0.22, 0.37±0.17, respectively. All patients obtained satisfactory UDVA and UIVA, as well as functional UNVA, meeting the needs of daily life. Spectacle independence rate was 94.55%. Contrast sensitivity results did not differ from those obtained with monofocal aspheric lenses. Likewise, no moderate and severe photic phenomena were reported. Mean patient satisfaction scores with distance, intermediate and near vision were 9.0, 9.0, and 7.0, respectively. CONCLUSION: FLACS with implantation of the ERV IOL TECNIS Symfony provides a successful visual restoration at far, intermediate distance and a functional-range near vision acuity, with minimal level of disturbing photic phenomena, and high rates of spectacle independence and patient satisfaction.     

KTP激光治疗下泪小管吻合术后泪道阻塞的临床分析

目的：通过对Acrysof ReSTOR SA60D3多焦点人工晶状体植入和Acrysof SN60AT单焦点人工晶状体植入术后3a远近视力及拟调节力的对比研究,探讨Acrysof ReSTOR SA60D3多焦点人工晶状体中期的临床应用效果。

方法：对在同一时期接受白内障超声乳化人工晶状体植入手术的年龄相关性白内障患者68例80眼进行回顾性分析。其中A组40眼植入Acrysof ReSTOR SA60D3多焦点人工晶状体,B组40眼植入Acrysof SN60AT单焦点人工晶状体。术后3a随访观察术眼的屈光状态,裸眼远、近视力,矫正远、近视力, 最佳远矫下近视力,对比敏感度,问卷调查视觉质量和满意度,术后脱镜率及并发症等。

结果：术中术后两组均无严重并发症。两组患者术后均有良好的远视力和最佳矫正近视力,差异无统计学意义; A组患者裸眼近视力明显优于B组,A组脱镜率达82%,B组脱镜率16%; 术后对比敏感度差异无统计学意义,术后视觉症状无明显差异,但是术后满意度A组明显高于B组。

结论：Acrysof ReSTOR SA60D3多焦点人工晶状体植入安全有效,可为患者同时提供良好的远、近视力,值得临床推广应用。     

衍射折射型多焦点人工晶状体远期视觉质量观察

目的:测定衍射折射型多焦点人工晶状体眼术后远期的视觉质量。方法:采取随机对照临床试验研究方法,将67例白内障患者分两组,其中30例33眼植入多焦点人工晶状体,37例37眼植入单焦点人工晶状体。术后3mo和1a进行裸眼远视力、中间视力、近视力、矫正远、中、近视力和对比敏感度检查。视功能和生存质量调查问卷评价患者主观的视觉功能。结果:(1)术后多焦点组裸眼近视力优于单焦点组(P<0·05),中间距离视力亦优于单焦点组(P<0.05),两组裸眼和矫正远视力、近视力及最佳矫正远视力下近视力差异无显著性。术后1a和3mo相比,差异无显著性意义。(2)术后两组对比敏感度均低于正常范围,空间分布差异无统计学意义。(3)两组术后多焦点组脱镜率达83%,而单焦点组脱镜率为32%,两组比较差异有显著性(P<0·05)。多焦点组4例有眩光。多焦点组患者对全程视力的满意度高于单焦组患者。结论:多焦点人工晶状体能提供良好的全程视力,但近视力更好,视觉症状轻,脱镜率更高,有效地提高白内障患者术后的视觉质量。