Complications and outcomes of descemet stripping automated endothelial keratoplasty with artisan aphakia intraocular lens implantation

AIM： To evaluate the complications and outcomes of descemet stripping automated endothelial keratoplasty（DSAEK） combined with artisan aphakia intraocular lens（IOL） implantation in severely damaged eyes without capsular support.METHODS： DSAEK combined with artisan iris claw IOL implantation was performed on 29 eyes. All eyes were of abnormal structure due to complications from prior intraocular surgeries and ocular trauma. Ocular complications observed included graft dislocations, high intraocular pressure（IOP）, IOL dislocations, macular edema and hyphema. Best corrected visual acuity（BCVA）, IOP and mean central endothelial cell density（ECD） were recorded.RESULTS： Thirteen eyes had a history of ocular trauma, 10 eyes had an anterior chamber IOL, 16 eyes had prior vitrectomy. The iris was abnormal in 22 cases. Graft dislocation occurred in 5（17.2%） of 29 eyes. IOL dislocation occurred in 2 eyes（6.9%）. High IOP was found in 9 eyes and was controlled with treatment. The preoperative mean BCVA was 20/286. The 6 mo postoperative mean BCVA was 20/42. The average center ECD was 1965.3 cells/mm^2 at 6 mo, and the rate of the donor cell loss was 34.7%.CONCLUSION： DSAEK combined with artisan aphakia IOL implantation is an alternative option for resolving endothelial and lens disorders in aphakic eyes without capsular support. However, it should be performed cautiously for eyes with severe iris defects.

Y-Shaped Intra-Scleral Fixated Lens versus Retro-Pupillary Iris Claw Lens in the Treatment of Aphakia

Background: Many reasons can lead to an aphakia without adequate capsular support for implantation of a posterior chamber intraocular lens (IOL), such as intraoperative unintentional rupture of posterior capsule during phacoemulsification, planned intracapsular cataract extraction, ocular trauma and lens dislocation due to congenital and acquired causes. Purpose: To compare Y-shaped intra-scleral fixation of a posterior chamber IOL with retro pupillary fixation of an iris-claw intraocular lens (IOL) for Aphakic eyes without sufficient capsular support as respects safety, visual recovery and complications of both methods. Patients and Methods: One hundred Aphakic eyes were arbitrarily distributed between two groups. Group A included 50 eyes treated with retropupillary fixation of iris claw lens and group B included 50 eyes treated with Y-shaped intra-scleral fixation technique. Preoperative, intraoperative and postoperative data were analysed including best corrected visual acuity (BCVA), intraocular pressure (IOP), surgical time, intraoperative problems, IOL malposition and postoperative complications. Following up on patients was carried out for at least six months. Results: The mean duration of surgery was 21 ± 5.3 min in group A and was 53.4 ± 6.9 min in group B (p-value 0.05). IOL tilt was found in 0 (0%) eyes in group A and in 5 (10%) eyes in group B (p 0.05). Conclusion: The results of our study indicated that both methods are satisfactory in correcting aphakia without sufficient capsular support as regards postoperative best corrected visual acuity (BCVA);however the surgical technique of retropupillary iris claw lens is easier, shorter, with low intra- and postoperative complications and safer than those used for intra-scleral fixation of IOL. But for eyes which lack both iris and capsular support, a scleral fixation of a posterior chamber IOL remains the only option.

Safety and Efficacy of Artisan Aphakia Iris-Claw Intraocular Lens in Tertiary Hospital in Indonesia

Introduction: Iris-claw Intraocular Lens (IOL) is one of the alternatives to correct aphakia without sufficient capsular support. This technique is preferred because it has a simple procedure. Iris-claw IOL was originally designed to be fixated on the anterior chamber. The use of retropupillary fixation is increasing because the location is more physiologic and it shows less risk to corneal endothelial damage. Purpose: To describe safety and efficacy of iris-claw Artisan IOL in correcting aphakia without sufficient capsular support. Methods: This is a descriptive retrospective study of patients with aphakic iris-claw Artisan IOL implantation in National Eye Center Cicendo Eye Hospital, Indonesia from July 2017-July 2019. Patients were divided into prepupillary and retropupillary group. The Uncorrected Visual Acuity (UCVA), Best-Corrected Visual Acuity (BCVA), Safety Index (SI), Efficacy Index (EI), and complications were recorded. The procedure is safe if SI value ≥ 1.0 and effective if EI value ≥ 1.0. Results: There were 54 eyes in the retropupilary group and 17 eyes in the prepupillary group. In the prepupillary group, there were 94.11% eyes with SI ≥ 1.0, the mean SI was 1.79 ± 1.02, 50% of eyes with EI ≥ 1.0, and the mean EI was 0.77 ± 0.20. In the retropupillary group, there were 96.29% eyes with SI ≥ 1.0, the mean SI was 2.49 ± 2.23, 74.07% of eyes with EI ≥ 1.0, and the mean EI was 1.75 ± 1.64. Postoperative UCVA and BCVA were improved significantly compared to preoperative visual acuity in both groups (p < 0.05) Conclusion: Prepupillary and retropupillary iris-claw IOL implantation are safe. Retropupillary fixation technique is more effective in improving visual acuity.

The Preliminary Report of Epikeratophakia in the Treatment of Pediatric Aphakia after Traumatic Cataract Extraction

Purpose: To study the role of epikeratophakia in treating pediatric unilateral aphakia after traumatic cataract extraction.Methods: We performed epikeratophakia in 43 children to treat aphakia after traumatic cataract extraction, using the corneal lenses made by ourselves. The rehabilitation of the the postoperative vision and the prevention of amblyopia were observed with a mean follow-up period of 20 months.Results: All the lenses remained transparent. Postoperatively, 31 cases (72. 1%) achieved uncorrected visual acuities (V. A) over 0. 2, 32 cases (74. 4%) achieved corrected V. A over 0. 4. Most of the cases achieved the best preoperative corrected V. A with spectacles of less than 3 diopters. No severe complication occurred. Conclusion: Epikeratophakia is predictable with quality lens and correct surgical technique. The result suggests that the epikeratophakia is one of the best treatment for the pediatric aphakia especially for those who are not optimal for IOL implantation. Eye Science 1997 ;

人工晶状体屈光力计算公式在儿童Ⅱ期植入的研究进展

Ⅱ期人工晶状体(intraocular lens,IOL)植入常用于矫正先天性白内障摘除术后无晶状体眼状态。IOL屈光力计算是影响儿童Ⅱ期IOL植入术后视功能发育和改善的关键因素之一。现有IOL屈光力计算公式是基于成人有晶状体眼的数据研发,能准确预测成人眼IOL植入的屈光力,但是对儿童Ⅱ期IOL植入的屈光力预测准确性欠佳,主要原因包括:1)儿童II期植入术前为无晶状体眼,缺乏部分公式定义中的有晶状体眼的前房深度(是指从角膜前表面中央顶点到晶状体前表面的距离)和晶状体厚度。2)公式根据囊袋内植入IOL预测屈光力,但儿童Ⅱ期IOL睫状沟植入术在临床上应用更为广泛。当IOL植入睫状沟时有效晶状体位置发生前移,可能引起屈光预测误差。3)成人眼的发育已完成,目标屈光度多为正视或近视眼(-3.00~+1.00 D),但是儿童眼仍在发育,需针对其特性测算合适的远视目标屈光度(+0.50~+12.00D)以适应眼球发育引起的屈光变化。为使Ⅱ期IOL植入患儿达到术前预设的目标屈光度,对现有公式进行选择与优化至关重要。

8-0聚丙烯缝线巩膜双联结缝合固定人工晶状体悬吊术在无晶状体眼中的应用

目的:观察8-0聚丙烯缝线巩膜双联结缝合固定人工晶状体悬吊术在无晶状体眼中的临床效果。方法:回顾性病例研究。收集2021-01/2022-11于我院行人工晶状体悬吊术的无晶状体患者30例31眼(其中男22例22眼)的临床资料,术中均采用8-0聚丙烯缝线巩膜双联结缝合法固定人工晶状体(AcrySof IQ或Tecnis ZCB00),术后至少随访6 mo,观察所有患者视力、眼压、术后人工晶状体位置和术中术后并发症发生情况。结果:术前术眼裸眼视力(UCVA,LogMAR)和最佳矫正视力(BCVA,LogMAR)分别为2.53±0.78和0.35±0.26,术后6 mo分别为0.58±0.26和0.36±0.27,手术前后UCVA比较有差异(t=15.408,P<0.01),BCVA比较无差异(t=-1.677,P=0.104)。术中未出现并发症。术后所有人工晶状体位置均居中,出现人工晶状体倾斜3眼,术后发生高眼压2眼、角膜水肿5眼、缝线外露1眼。术后未出现前房积血、玻璃体积血、黄斑水肿、角膜内皮失代偿、低眼压、脉络膜脱离、视网膜脱离、爆发性脉络膜上腔出血、眼内炎等并发症。结论:8-0聚丙烯缝线巩膜双联结缝合固定人工晶状体悬吊术早期可提高无晶状体患者的术后视力、并发症较少,可作为治疗无晶状体、晶状体脱位、悬韧带异常患者的一种手术方式选择。

婴儿期双眼先天性白内障患儿二期人工晶状体植入的时机及视功能改变

背景 婴儿期双眼先天性白内障严重危害患儿的视觉发育，已行双眼白内障摘出术的患儿行人工晶状体（IOL）植入是理想的屈光矫正方式，但其植入时机目前尚存争议。 目的 分析婴儿期双眼先天性白内障患儿二期IOL植入前后最佳矫正视力（BCVA）的变化和影响因素，探讨二期IOL的植入时机。方法 对2012年1月至2014年12月在北京大学人民医院接受白内障摘除－屈光矫正和弱视训练－二期IOL植入的患儿29例58眼的临床资料进行回顾性分析。所有患儿于出生1年内接受双眼白内障摘出术及后囊切开联合前部玻璃体切割术，行配戴框架眼镜屈光矫正和弱视训练后于2岁之后接受双眼同期二期IOL植入术。IOL植入术前1周及术后3个月时行双眼扩瞳验光并记录BVCA（LogMAR），比较二期IOL植入前后单眼BCVA的差异、分布变化及相关关系。结果 本研究中患儿接受白内障摘出术的平均年龄为（3.26±2.07）个月，二期IOL植入时平均年龄为（4.79±1.38）岁，2次手术间隔时间平均为（4.28±1.33）年。二期IOL植入术前1周患儿单眼BCVA（LogMAR）为0.790±0.422，术后3个月为0.570±0.307，差异有统计学意义（t＝3.223，P〈0.001）。二期IOL植入术后单眼BCVA≥0.5的眼数明显多于术前，差异有统计学意义（χ2＝53.931，P〈0.001）。二期IOL植入术前1周与术后3个月间单眼BCVA呈正相关（R2＝0.232，F＝17.037，P〈0.001）。结论 先天性白内障患儿在保证生命安全的前提下尽早实施白内障摘除－屈光矫正和弱视训练－二期IOL植入的系统性治疗，有利于BCVA的改善和弱视治疗，屈光矫正和弱视训练依从性差和效果欠佳的患儿应及时行二期IOL植入术。

简化的无晶状体眼内硅油取出术

目的 :介绍一种晶状体玻璃体切割术后简化的经角膜缘眼内硅油取出术。方法 :复杂性视网膜脱离经历晶状体玻璃体切割、气液交换、硅油充填联合手术患者 5 1例 ,硅油充填时间 2～ 34(平均 4 .5± 2 .3)个月。可确定视网膜状况稳定者 4 2眼。用 2 5G针头插入平坦部或角膜缘穿刺作灌注 ,同时由角膜缘穿刺取硅油。结果 :眼内硅油一次取出成功 ,视网膜状况稳定者视力显著提高 (P <0 .0 5 ) ,术后眼压基本正常 ,角膜带状变性者角膜混浊减轻。术后均有暂时性低眼压 ,视网膜再脱离 4眼 (4 / 5 1 ,7.8% ) ,巩膜穿刺口出血 2眼 (2 / 5 1 ,3.9% )。结论 :本方法简单、易掌握、疗效肯定 。

婴幼儿无晶状体眼对压贴球镜矫正的依从性及疗效

目的评价婴幼儿无晶状体眼对压贴球镜矫正的依从性及疗效。方法2004年11月至2006年4月28例(55眼)先天性白内障术后无晶状体眼患儿,年龄4～23个月,采用优先注视法检查视力,用+14～+20D压贴球镜矫正无晶状体眼,观察其戴镜的依从性及视力提高情况。每6个月扩瞳验光,调整眼镜度数,随访6～24个月。结果能坚持戴镜、依从性好者25例(89.29%),不能坚持者3例(10.71%)。术后视力明显高于术前视力(P<0.05)。术中检影验光屈光度为+14～+20D,平均+17D;随访检影,随着月龄增长,远视度数逐渐降低,每6个月降低0.50～1.00D。视轴区透明,未见明显后发性白内障。结论婴幼儿无晶状体眼用压贴球镜矫正屈光不正,由于镜片轻便,患儿易于接受、依从性好。联合弱视训练,视力明显提高,可适当推迟二期人工晶状体植入时间,并减少并发症。

二期悬吊式人工晶体植入术的临床观察

目的评价二期悬吊式人工晶体植入术的临床疗效。方法回顾性分析46例46眼悬吊式人工晶体植入术的临床资料。结果平均随访8.5个月,术后矫正视力3眼达0.6以上(6.5%),19眼达0.4￣0.5(41.3%),15眼达0.2￣0.3(32.6%),6眼0.05￣0.1(13.0%),0.05以下3眼(6.5%)。结论二期悬吊式人工晶体植入术是一种矫正无足够后囊膜支持的无晶体眼的有效、安全术式。

玻璃体切割术后无晶状体眼行前房灌注下Ⅱ期IOL缝线固定术

目的:探讨前房灌注下玻璃体切割术后无晶状体眼Ⅱ期人工晶状体(IOL)缝线固定术的方法及疗效。方法:对30例30眼玻璃体切割术后6～12mo无晶状体眼的患者行前房灌注下后房人工晶状体缝线固定术,术后随访1.5a。结果:患者30例30眼在前房灌注下,成功实施了后房缝线固定IOL植入术,术中出现睫状体出血1例,术后玻璃体出血1例,脉络膜脱离2例。所有患者术后视力均得到提高,视力≥0.3者24例(80%),其中视力≥0.5者8例(27%);视力<0.3者6例(20%),其中视力<0.1者2例(7%)。结论:前房灌注下行此类手术,术中眼压控制稳定,手术效果可靠,术后并发症少,是治疗玻璃体切割术后无晶状体眼、恢复视功能的可靠手术方法。

人工晶状体4点固定缝合术

目的:探讨获得最佳人工晶状体缝合术的方法。方法:需Ⅱ期植入人工晶状体的患者14例,其中曾经行白内障囊内摘除的单眼无晶状体眼8眼,伴有前节结构紊乱的外伤性白内障术后无晶状体眼4眼,外伤导致晶状体脱位2眼,均行4点支撑人工晶状体睫状沟缝线固定术。结果:术后最佳矫正视力(BCVA)0.1～0.4的8眼,0.5～0.7的2眼,0.8～1.0的4眼,随访平均时间为1a。结论:人工晶状体4点支撑睫状沟缝线固定术为无晶状体囊支持的患者提供了恢复视力的有效方法。

虹膜固定型人工晶状体二期植入治疗无晶状体眼的疗效

目的评价二期植入虹膜固定型人工晶状体治疗各种原因导致的无晶状体眼的疗效。方法选取无晶状体眼患者15例(16眼),均植入虹膜固定型人工晶状体,术后观察患者视力、眼压、角膜内皮细胞计数及并发症情况。结果 15例均一次性成功植入虹膜固定型人工晶状体,显微镜观察人工晶状体位于瞳孔中央。术后裸眼视力0.02-0.80,平均0.35,与术前裸眼视力(手动-0.12)比较差异有统计学意义(P<0.001),与术前矫正视力比较差异无统计学意义(P>0.05)。术后6个月角膜内皮细胞平均丢失率为9.87%。仅1例术后发生瞳孔区玻璃体阻滞。手术前后眼压差异无统计学意义(P>0.05)。结论实施虹膜固定型人工晶状体二期植入术治疗无晶状体眼,能够安全、有效地提高患者的术后视力,但人工晶状体对角膜内皮、虹膜等组织的长期影响还需进一步观察。

New two-point scleral-fixation technique for foldable intraocular lenses with four hollow haptics

The study was to report a new two-point scleralfixation technique for foldable intraocular lenses with four haptics.Lenses were slid into the anterior chamber from a 2.8 mm corneal incision and fixed under two sclera flaps at two opposite points.The postoperative best-corrected visual acuities（BCVAs） of all patients were significantly better than their preoperative BCVA.The results demonstrate that two-point,scleral fixations of foldable,intraocular lenses might be practicable and effective.

虹膜修补术在人工晶状体植入术中的价值

目的 探讨虹膜修补术在人工晶状体植入术中的价值。方法 各种虹膜缺损或前粘连伴外伤性白内障或无晶状体眼采用McCannel法或Siepser法修复虹膜形成瞳孔并植入人工晶状体。结果 12例 12眼经手术后随访 1月～ 1年 ,视力从术前的光感～ 0 .3提高到 0 1～ 0 .8(4眼好于 0 5 )。结论 对于各种虹膜损伤行虹膜修补术在人工晶状体植入术中是必需的且具有良好的价值。

异种表面角膜镜片术

目的介绍异种表面角膜镜片术（ＨＥＰ）的动物实验和临床应用。方法异种（人给猴）表面角膜镜片术（ＥＫＰ）动物实验进行了８例，术后不同时间进行了组织病理学检查。临床上给４例圆锥角膜和９例无晶体眼进行了异种（猴→人）ＥＫＰ术。结果８例实验动物有７例异种表面角膜镜片获得透明，术后镜片上皮化４～６ｄ完成，基质内角膜细胞再分布一般在９个月完成，观察时间６～２４个月。９例无晶体眼７例成功，４例圆锥角膜全部成功，观察时间５～３２个月，视力均有提高。

玻璃体切除术后无晶状体眼行不同术式人工晶状体植入术的临床观察

目的观察比较不同术式人工晶状体植入术治疗玻璃体切除术后无晶状体眼的临床疗效。方法回顾2007年1月至2011年12月我院收治的玻璃体切除术后144例(146只眼)无晶状体眼患者的病例资料,分析比较不同术式植入人工晶状体后的临床疗效及并发症发生情况。结果据病情行不同术式的人工晶状体植入,其中对有残留周边晶状体囊膜者行人工晶状体睫状沟内植入42只眼;对无囊膜残留者行经巩膜缝线固定人工晶状体植入术41只眼;前房型人工晶状体植入63只眼,术后均随访3个月以上:①138只眼裸眼视力提高2行以上占94.5%,术后裸眼视力达到或超过术前最佳矫正视力共有103只眼(70.5%),其中睫状沟植入组31只眼(73.8%),前房型人工晶状体植入组52只眼(82.5%),巩膜缝线固定组26只眼(63.4%);②常见并发症:术中出血9只眼(前房型人工晶状体组2只眼占3.2%,巩膜缝线固定组7只眼占17.1%,);术后出血11只眼(前房型人工晶状体组2只眼占3.2%,巩膜缝线固定组9只眼占22.0%,);术后早期并发症:眼压≤8 mm Hg共25只眼(睫状沟植入组3只眼占7.1%,前房型人工晶状体组10只眼占15.9%,巩膜缝线固定组12只眼占29.3%,);眼压≤5mm Hg共7只眼(前房型人工晶状体组4只眼占6.3%,巩膜缝线固定组3只眼占7.3%,);术后发生浅前房4只眼均为前房型人工晶状体植入组(占6.3%);角膜水肿5只眼均为前房型人工晶状体植入(7.9%);前房炎症反应4只眼均为前房型人工晶状体植入(6.3%)。远期并发症:黄斑囊样水肿6只眼(前房型人工晶状体组3只眼4.8%,巩膜缝线固定组3只眼占7.3%)。结论玻璃体切除术后无晶状体眼采用不同方式人工晶状体植入术后效果肯定,其中睫状沟植入人工晶状体术后并发症少,前房型人工晶状体和人工晶状体睫状沟植入术后视力矫正优于巩膜缝线固定人工晶状体植入,但对无囊膜支撑和不适于前房型人工晶状体植入的无晶状体眼,经巩膜缝线固定术也是有效的术式。

无巩膜瓣悬吊式人工晶状体植入术的临床观察

目的:评价无巩膜瓣悬吊式人工晶状体植入术的临床疗效。方法:回顾性分析63例63眼悬吊式人工晶状体无巩膜瓣植入术的临床资料。结果:平均随访8.3mo,术后1wk最佳矫正远视力≥0.6者5眼(7.9%),0.4～0.5者23眼(36.5%),0.2～0.3者19眼(30.2%),0.05～0.1者10眼(15.9%),≤0.05者6眼(9.5%)。结论:对于矫正无足够后囊膜支持的无晶状体眼的屈光状态,提高患者视力,无巩膜瓣悬吊式人工晶状体植入术是一种安全有效的理想选择,临床值得推广。

人工晶状体二期植入术

目的探讨人工晶状体二期植入术各种术式的适应证。方法对无晶状体60眼根据不同眼前段情况采用前房型、后房型及三线悬吊式3种术式。结果前房组矫正视力≥0．5者，术前占82．8％，术后占69％，另两组手术前后水平一致。主要并发症：前房组为角膜失代偿1例，继发性青光眼2例，晶状体上移位3例，囊样黄斑水肿1例。另两组无明显并发症。结论人工晶状体二期植入术后房型最安全，三线悬吊式可作为既无后囊支撑、又无虹膜支撑时的手术方法。

改良的无晶状体眼硅油取出术

目的探讨一种改良的无晶状体眼硅油取出术。方法共31例(31眼)无晶状体眼。其中孔源性视网膜脱离12眼,外伤性视网膜脱离12眼,增生型糖尿病视网膜病变3眼,其他类型玻璃体视网膜病变4眼。全部应用了这种改进的硅油取出术。术后平均随访时间为(8.7±3.4)月。结果所有31眼均顺利完成手术操作,平均手术时间为(36.2±8.5)分钟,手术切口不需缝合。术后25眼(80.65%)视力提高在2行以上。3眼(9.68%)视网膜脱离复发,1眼(3.23%)继发青光眼。结论这种简化的无晶状体眼硅油取出术简单易行,安全有效。