连续视程与三焦点人工晶状体植入术后视觉质量的比较

目的：比较Tecnis Symfony连续视程人工晶状体与Zeiss三焦点人工晶状体(At Lisa tri 839MP)植入术后患者视觉质量的差异。

方法：选取2019-01/2020-12于我院行白内障超声乳化吸除联合人工晶状体植入术的患者42例53眼,其中A组22例29眼植入Tecnis Symfony连续视程人工晶状体,B组20例24眼植入Zeiss三焦点人工晶状体。观察两组患者术后3mo时远中近视力,绘制离焦曲线,并评估生活质量,记录并发症发生情况。

结果：术后3mo,两组患者视力均明显改善,两组患者裸眼远(5m)、中(80cm)距离视力及最佳矫正远距离视力(5m)无差异(均P>0.05),但B组患者裸眼中(60cm)、近(40cm)距离视力优于A组(均P<0.05)。术后3mo绘制离焦曲线示A组在+1.0～-2.0D段跨度平稳形成平台期; B组在0、-2.5D处形成两个波峰; 0D处两组远视力无显著差异(P>0.05),-2.5、-3.5D处B组近视力显著优于A组(均P<0.01)。两组患者术后脱镜率均在90%以上,均出现不同程度眩光、光晕等光学现象,但生活质量总体满意度较高,A组阅读速度明显高于B组,且夜间视物满意度较高(均P<0.05)。

结论：两种类型人工晶状体植入术后脱镜率均在90%以上,可为患者提供兼顾远、中、近的全程视力,Symfony连续视程人工晶状体植入术后流畅阅读及夜间视物满意度较高; Zeiss三焦点人工晶状体植入术后近距离视力更好,更适合近距离工作者。     

单眼和双眼Symfony人工晶状体植入术后生活质量的比较

目的：比较接受双眼Symfony连续视程人工晶状体(intraocular lens,IOL)植入与接受单眼Symfony连续视程IOL植入而另一眼非球面单焦点IOL植入患者术后的生活质量。

方法：采用以人群为基础的横断面研究。以美国国家眼科研究所研制开发的视功能调查问卷(the National Eye Institute Visual Functioning Questionnaire-25,NEI VFQ-25)对研究对象的术后视功能相关生活质量(vision-related quality of life,vision-related QoL)进行评价。收集2017-03/2018-03行白内障超声乳化吸除联合IOL植入术的患者30例60眼,按照植入IOL类型分为两组,双眼植入TECNIS Symfony连续视程人工晶状体(ZXR00)为双眼组(18例36眼),一眼植入TECNIS Symfony连续视程人工晶状体(ZXR00),另一眼植入非球面单焦点IOL(PCB00)为单眼组(12例24眼)。术后3～6mo进行随访,主要观察指标为双眼远、中、近裸眼视力和生活质量调查问卷。

结果：双眼组和单眼组术后双眼裸眼远、中、近视力比较,差异无统计学意义(P>0.05)。两组患者术后NEI VFQ-25问卷总评分(88.95±4.01 vs 88.99±4.22分)比较,差异无统计学意义(t=-0.025,P=0.980)。12个维度的评分结果对比显示,两组患者术后与视觉相关的各个方面生活质量差异均无统计学意义(P>0.05)。

结论：双眼植入ZXR00或一眼植入ZXR00,另一眼植入PCB00的患者均具有良好的双眼全程视力。两组患者的术后生活质量无差异。对一眼已行单焦点IOL植入的患者或一眼不适合装多焦点人工晶状体的患者,可行另一眼Symfony连续视程IOL植入以满足患者脱镜需求。     

飞秒激光辅助白内障手术联合三焦点人工晶状体植入术的疗效观察

目的：观察飞秒激光辅助白内障手术联合三焦点人工晶状体(IOL)植入术后的临床疗效。

方法：回顾性自身前后对照研究。选择2016-09/2017-11就诊于山西省眼科医院植入三焦点IOL的白内障患者42例59眼,随访至术后6mo,分别观察术前、术后1wk,1、3、 6mo单眼裸眼远、中、近距离视力(LogMAR)、离焦曲线、屈光稳定性、高阶像差、患者满意度和脱镜率。

结果：所有患者在术后各随访时间点远、中、近距离均可获得优于0.1LogMAR的良好视力,术后各距离视力与术前相比显著提高(P<0.05)。术后6mo离焦曲线在0～-2.5D之间曲线过渡平缓,术眼达到优于0.8的视力水平。术后6mo,63%(37眼)的患眼SE位于±0.25D之间,88%(52眼)的患眼SE则位于±0.50D之间。术后各时期全眼的总高阶像差、彗差、球差、三叶草像差明显低于术前(P<0.05)。

结论：飞秒激光辅助白内障手术联合三焦点IOL植入术可以为患者提供舒适自然的全程视力,实现真正的脱镜,患者术后满意度高。     

三焦点与单焦点人工晶状体植入术效果的比较

目的：观察并比较AT LISA tri 839MP三焦点人工晶状体及CT SPHERIS 209M单焦点人工晶状体植入术后白内障患者的视力、对比敏感度和视觉质量。

方法：行白内障超声乳化摘除联合人工晶状体植入术的患者52例52眼,其中三焦点组26例26眼,术中植入AT LISA tri 839MP三焦点人工晶状体; 单焦点组26例26眼,术中植入CT SPHERIS 209M单焦点人工晶状体。术后3mo检查患者的裸眼远距离视力(UCDVA)、裸眼中距离视力(UCIVA)、裸眼近距离视力(UCNVA)、最佳矫正远视力(BCDVA)、远视力矫正下的中距离视力(DCIVA)、远视力矫正下的近距离视力(DCNVA),明、暗环境中不同空间频率(3、6、12、18c/d)下的对比敏感度,并进行脱镜率、不良视觉症状和满意度等问卷调查。

结果：术后3mo三焦点组UCIVA、UCNVA、DCIVA和DCNVA、脱镜率及满意度均优于单焦点组(P<0.05)。在暗环境中的18c/d空间频率,单焦点组的对比敏感度优于三焦点组(P=0.041)。两组均有轻度眩光和光晕不适主诉(P=0.668)。

结论：AT LISA tri 839MP三焦点人工晶状体较CT SPHERIS 209M单焦点人工晶状体为患者提供了更好的中、近视力,脱镜率和满意度均高于单焦点人工晶状体。     

Oculentis区域折射多焦点人工晶状体植入术后早期疗效观察

目的：探讨Oculentis区域折射多焦点人工晶状体植入术后早期临床疗效。

方法：将2016-10/2017-01行超声乳化吸出术联合Oculentis区域折射多焦点人工晶状体植入术的白内障患者20例作为试验组,将同一时段行超声乳化吸出联合人类光学Aspira-aA单焦点非球面人工晶状体植入术的白内障患者20例作为对照组。检查患者术后3mo裸眼远视力、近视力、屈光状态、UBM检查、阅读戴镜率、不良体验率(光晕、眩光、雾视等现象发生率)的情况。

结果：术后3mo,试验组裸眼远视力(0.10±0.03)与对照组比较差异无统计学意义(t=1.74,P>0.05)。试验组裸眼近视力(0.11±0.04)与对照组比较差异有统计学意义(t=15.53,P<0.05)。术后3mo,试验组人工晶状体居中性均良好,阅读戴镜率为5%,不良体验率(光晕、眩光、雾视现象发生率)仅为5%,而对照组阅读戴镜率为100%。

结论：Oculentis区域折射多焦点人工晶状体植入术可提供良好的裸眼远视力和近视力,能极大地提高白内障术后脱镜率,解决白内障术后老视问题,且患者舒适度极佳,光晕、眩光、雾视现象少有发生,手术安全可靠。     

非球面散光矫正型多焦点人工晶状体在白内障中的临床观察

目的:通过对非球面矫正型多焦点人工晶状体与非球面人工晶状体的比较,探讨白内障超声乳化联合非球面散光矫正型人工晶状体植入术后患者的远近视力、剩余散光、视远脱镜率、视近脱镜率、视觉质量和患者满意度等情况.方法:选取2014-02/2016-06在我院确诊为年龄相关性白内障的患者46例48眼,实行白内障超声乳化摘除联合人工晶状体植入术,分别植入AcrySof IQ ReSTOR Toric人工晶状体23例24眼作为试验组;AcrySof IQ 人工晶状体23例24眼作为对照组.术后随访6mo,观察两组患者术后裸眼远视力(UCDVA)、最佳矫正远视力(BCDVA)、裸眼近视力(UCNVA)、最佳矫正近视力(BCNVA)、剩余散光和术后患者视远脱镜率、视近脱镜率、患者对手术疗效的满意度.结果:术后1、3、6mo两组患者最佳矫正远视力和最佳矫正近视力无统计学差异(P>0.05),而裸眼远视力、裸眼近视力均有统计学差异(P<0.05).两组患者术后1wk,1、3、6mo的剩余散光差异有统计学意义(P<0.05),术后6mo时两组患者对疗效满意度差异有统计学意义(P<0.05);术后6mo视近视远脱镜率,试验组明显高于对照组,差异有统计学意义(P<0.05).结论:非球面散光矫正型人工晶状体具有良好的近附加和散光矫正,可为患者提高良好的裸眼远视力和裸眼近视力,明显提高患者术后的脱镜率和对疗效的满意度,是白内障术后患者尤其是散光伴有明显视近阅读需求患者的福音.     

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。     

连续视程人工晶状体与双焦点、单焦点人工晶状体植入术后患者视力、视觉质量及满意度对比分析

目的 比较连续视程人工晶状体与双焦点、单焦点人工晶状体植入术后患者视力、视觉质量及满意度的差异。方法 选取2020年10月至12月于我院行超声乳化白内障吸除联合人工晶状体植入术的患者61例61眼。依据患者人工晶状体植入情况分为3组,连续视程组16例16眼植入Tecnis Symfony连续视程人工晶状体;双焦点组20例20眼植入Tecnis ZMB00一片式非球面双焦点人工晶状体;单焦点组25例25眼植入Tecnis ZCB00一片式非球面单焦点人工晶状体。术后1个月检测患者裸眼远、近视力,绘制离焦曲线,运用双通道视觉质量分析系统OQASⅡ检测植入不同人工晶状体后,患者单眼客观视觉质量。分析并获得客观散射指数(OSI)、调制传递函数截止频率(MTF_{cut off})、斯特列尔比(SR)、三种对比度(100%、20%、9%)下的模拟对比度视力(OV100%、OV20%、OV9%),通过问卷形式对患者进行满意度调查。结果 术后1个月,三组患者33 cm和40 cm裸眼近视力差异均有统计学意义(均为P<0.01),单焦点组患者33 cm和40 cm裸眼近视力均差于双...     

飞秒激光白内障手术联合PanOptix三焦点人工晶状体植入术的疗效

目的:观察飞秒激光白内障手术联合PanOptix三焦点人工晶状体植入术的临床疗效。方法:回顾性研究。选取2020-08/2021-08于我院行飞秒激光白内障手术联合PanOptix三焦点人工晶状体植入术的白内障患者22例26眼,随访至术后3mo,观察手术前后远中近视力、像差、斯特里尔比值(SR)及调制传递函数截止频率(MTF-cutoff)变化情况,绘制术后1mo离焦曲线,评估术后3mo患者视觉质量和满意度。结果:术后1d, 1wk, 1、3mo,纳入患者远中近视力均优于0.1(LogMAR),与术前相比显著改善(均P<0.01)。术后1mo离焦曲线在+0.5～-3.0D之间曲线过渡平缓,视力均优于0.63(小数视力)。术后1d, 1wk全眼总像差、球差均明显低于术前,SR、MTF-cutoff均明显高于术前(均P<0.05)。术后3mo,纳入患者看远中近距离时均无需戴镜,整体满意度高,视觉质量良好。结论:飞秒激光白内障手术联合PanOptix三焦点人工晶状体植入术可使患者获得舒适满意的全程视力。     

飞秒激光辅助屈光性白内障手术效果的初步观察

目的：比较飞秒激光辅助屈光性白内障手术与常规屈光性白内障手术术后视力及角膜散光的差异。

方法：将老年性白内障合并角膜散光患者60例60眼,按随机自愿原则分为飞秒组及常规组。飞秒组将患者术前角膜散光陡峭轴、平坦轴轴向及屈光度数输入在线矢量计算器,得出相关切口位置、切口宽度后,利用飞秒激光做角膜松解切口、主切口及辅助切口,再按常规行白内障超声乳化+非球面多焦点人工晶状体(multifocal intraocular lenses,IOL)植入术。常规组利用角膜穿刺刀于角膜散光陡峭轴向上做角膜全层松解切口、辅助切口,然后行白内障超声乳化+非球面多焦点IOL植入术。分别于术后1d,1wk,1mo观察两组术眼的角膜散光情况及裸眼远视力(uncorrected distance visual acuity,UCDVA)、裸眼近视力(uncorrected near visual acuity,UCNVA),并进行统计分析。

结果：飞秒组和常规组术后裸眼视力均较术前提高,且飞秒组远、近视力均高于常规组; 而各时期角膜散光飞秒组均低于常规组。

结论：飞秒激光辅助下屈光性白内障手术较传统白内障手术术后角膜散光更小、视力更好,能给患者带来更好的视觉质量。     

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.     

Visual Outcomes after Bilateral Implantation of an Extended Depth of Focus Intraocular Lens: A Multicenter Study

PurposeTo evaluate visual performance after bilateral implantation of an extended depth of focus (EDOF) intraocular lens (IOL).MethodsThis multicenter, prospective, observational study included 100 patients who underwent bilateral cataract surgery with a toric or non-toric EDOF IOL (Tecnis Symfony), and 96 patients completed the final assessment at 4 to 6 months. Binocular corrected distance visual acuity and uncorrected distance visual acuity (UDVA), uncorrected intermediate visual acuity (UIVA), and uncorrected near visual acuity (UNVA), spectacle independence, visual symptoms, and patient satisfaction were evaluated.ResultsMean decimal visual acuity results showed a binocular corrected distance visual acuity of 1.10 ± 0.18, UDVA of 1.04 ± 0.17, UIVA of 0.96 ± 0.16, and UNVA of 0.68 ± 0.18. Binocular UDVA and UIVA were 0.8 (decimal) or better in 98% and 94% of patients, respectively. Binocular UNVA was 0.63 (decimal) or better in 76% of patients. Overall, 76% of the patients achieved spectacle independence across all distances, and more than 85% reported no or mild dysphotoptic phenomena. On a scale of 0 to 10, the median patient satisfaction score was 9 for far, 9.5 for intermediate, and 8 for near vision.ConclusionsThe Symfony EDOF IOL provided excellent distance, intermediate visual outcome, and functional near visual acuity. The visual results were associated with prominent levels of spectacle independence and patient satisfaction.     

三种不同IOL植入术后短期的视力和视觉干扰现象及脱镜率的对比

目的：对比分析单眼植入三焦点、多焦点及连续视程人工晶状体(IOL)术后短期的视力、视觉干扰现象及脱镜率。方法：回顾性分析2019-03/2022-12行超声乳化白内障吸除联合IOL植入术的白内障患者67例67眼。35例35眼植入Symfony连续视程IOL； 21例21眼植入AcrySof IQ ReSTOR+3D多焦点IOL； 11例11眼植入AcrySof IQ PanOptix三焦点IOL。记录术前及术后3 mo裸眼远视力(UDVA)、中视力(UIVA)、近视力(UNVA)，术后3 mo离焦曲线、视觉干扰现象及脱镜率。结果：术后3 mo，三组间UDVA无差异(P&#x003E;0.05)； Symfony组及PanOptix组UIVA优于ReSTOR组(均P&#x003C;0.01)； ReSTOR组及PanOptix组UNVA优于Symfony组(均P&#x003C;0.01)。离焦曲线显示，在中视力区间(-1.00--1.50 D)，Symfony组视力优于ReSTOR组(P&#x003C;0.05)； 在近视力区间(-2.50--3.50 D)，ReSTOR组视力优于Symfony组(P&#x003C;0.05)； PanOptix组在近视力区间(-2.00--3.50 D)的视力优于Symfony组(P&#x003C;0.05)，同时在中视力区间(-1.00--2.00 D)的视力优于ReSTOR组(P&#x003C;0.05)。三组间眩光或光晕的发生率及双眼相互干扰现象发生率均无差异(P&#x003E;0.05)。PanOptix组和ReSTOR组脱镜率比Symfony组高(P&#x003C;0.0167)。结论：与Symfony连续视程IOL和ReSTOR多焦点IOL相比，PanOptix三焦点IOL能够兼顾远中近视力，眩光和光晕发生率不高，脱镜率较高； 单眼植入老视矫正型IOL仍需慎重。     

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...     

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。     

景深延长型人工晶状体Symfony ZXR00的视觉质量研究

目的 评价Symfony ZXR00植入术后患者的视觉质量。设计前瞻性非随机对照研究。研究对象2021年6月至2022年1月于解放军总医院第六医学中心行白内障超声乳化摘除联合IOL植入术的患者42例(42眼),其中植入Symfony ZXR00IOL者18例(18眼),单焦点IOL A1-UV 24例(24眼)。方法比较两组术后3个月视力、对比敏感度、离焦曲线,并对光学干扰现象、脱镜率和视物满意度进行调查和分析。主要指标视力(LogMar)、对比敏感度、离焦曲线、光学干扰现象、脱镜率和视物满意度。结果术后3个月,Symfony组的裸眼远视力(-0.04±0.08)、裸眼中视力(-0.03±0.08)、裸眼近视力(0.28±0.16)、矫正近视力(-0.03±0.05)、矫正远视力下的中视力(-0.04±0.07)、矫正远视力下的近视力(0.27±0.13)显著优于单焦点A1-UV组(0.03±0.10、0.32±0.09、0.39±0.17、-0.01±0.02、0.30±0.11、0.48±0.19),P均<0.05;矫正远视力差异无统计学意义。Symfony组在-2.50 D...     

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 on visual function after implantation of an apodized diffractive aspheric multifocal or monofocal intraocular lens

 Purpose: To evaluate visual outcomes after implantation of an aspheric multifocal/ intraocular lens (MIOL) or an aspheric monofocal intraocular lens (IOL). Methods: This was a prospective nonrandomized study. During 3-months of post-operative follow-up, the following outcomes for SN6AD1 MIOL (multifocal group) and SN60WF IOL (monofocal group) were compared: uncorrected (UDVA) and corrected (CDVA) distance visual acuity, uncorrected (UNVA) and distance-corrected (DCNVA) near visual acuity, Chinese character near visual acuity, uncorrected intermediate visual acuity (UIVA) under high (100% contrast) and low contrast (10% contrast), UIVA for different IOL powers, and a quality-of-life questionnaire. Results: UNVA, DCNVA, and UIVA under high contrast in the multifocal group were significantly better than those in the monofocal group (P＜0.05). UDVA, CDVA and UIVA under low contrast did not differ between groups at 63 cm and 100 cm (P＞0.05). In most of the cases, Chinese character near visual acuity was significantly better in the multifocal group (P＜0.05). UNVA and UIVA at 63cm were improved 3 months post-operatively. Better UIVA was found in emmetropic and mild myopic eyes as compared to hyperopic ones. The patients in the multifocal group had a higher degree of satisfaction and performed better on near and intermediate tasks, although with greater complaints of visual disturbance.    Conclusion: The SN6AD1 MIOL provides significantly better UNVA, DCNVA and UIVA under high contrast conditions, and better Chinese character near visual acuity. Patients receiving the SN6AD1 MIOL reported a better quality of vision in spite of more serious visual disturbances. Better UIVA was observed in emmetropic and mildly myopic eyes.     

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.