Artisan aphakic intraocular lens in children with subluxated crystalline lenses

PURPOSE: To evaluate the results of Artisan (Ophtec) aphakic intraocular lens (IOL) implantation in children with idiopathic subluxated lenses. SETTING: Department of Ophthalmology, Soroka University Medical Center, Beer-Sheva, Israel. METHODS: This retrospective small case series comprised 4 eyes (3 children) with idiopathic essential subluxated lenses that had lens washout, lens capsule removal, Artisan IOL implantation, and peripheral iridectomy. The indications for surgery were reduced visual acuity and monocular diplopia. The main outcome measures were postoperative refraction and change in best corrected visual acuity (BCVA). RESULTS: The postoperative follow-up ranged from 8 to 10 months. After surgery, the BCVA was 6/12 or better in the 3 cases that could be recorded. Visual acuity improved by 2 or more Snellen lines in all 4 eyes. The postoperative spherical equivalent was within +/-1.00 diopter in all cases. No significant postoperative complications were observed. CONCLUSIONS: In 4 eyes with a subluxated crystalline lens, implantation of an Artisan aphakic IOL improved visual acuity. Studies with a larger number of patients and longer follow-up are necessary to confirm these results.     

Artisan虹膜夹持型人工晶状体植入治疗马凡综合征晶状体半脱位

目的探讨Artisan 虹膜夹持型人工晶状体（IOL）植入术治疗马凡综合征晶状体半脱位的有效性和安全性。方法 回顾性病例研究。2007年12月至2011年7月在广东省人民医院眼科确诊的马凡综合征晶状体半脱位患者16例（25眼）,行连续环形撕囊后,完成晶状体吸除、晶状体囊膜切除、前段玻璃体切割、Artisan IOL前房虹膜夹持固定和虹膜周边切除术。比较手术前后裸眼视力（UCVA）、最佳矫正视力（BCVA）、眼压、角膜内皮细胞计数,记录术后虹膜夹持型IOL位置、角膜内皮细胞丢失率,术中、术后并发症情况。随访时间6个月。采用非参数检验（Wilcoxon 检验）对手术前后UCVA和BCVA进行比较。结果 术后6个月UCVA和BCVA均较术前明显提高,术前和术后6个月UCVA（logMAR）分别为1.05±0.26和0.46±0.29,两者相比差异有统计学意义（Z=-4.530,P<0.01）。术前和术后6个月BCVA（logMAR）分别为0.68±0.32和0.27±0.22,两者相比差异具有统计学意义（Z=-2.208,P<0.01）。术后所有患眼虹膜夹持型IOL位置居中,单眼复视症状消失。术后2眼出现一过性高眼压,1眼出现脉络膜脱离,1眼出现视网膜脱离,未发生IOL移位、角膜失代偿等严重并发症。术后6个月平均角膜内皮细胞丢失率为5.6%。结论 Artisan虹膜夹持型IOL植入治疗晶状体严重脱位可提高视力,消除单眼复视且安全有效。     

Results of using the AssiAnchor capsule device for subluxated crystalline lenses

Purpose:To describe our results with the AssiAnchor capsule device in cases of subluxated crystalline lenses.Methods:This was a retrospective consecutive case series. Seven eyes of four patients with subluxated crystalline lenses underwent lensectomy/phacoemulsification with intraocular lens (IOL) implantation using the AssiAnchor capsule device in the Kaplan medical center, ophthalmology department. Three patients had Marfan syndrome and one patient had experienced blunt trauma. Demographic data were collected as well as parameters of pre- and postoperative distance visual acuity and refraction, intra-, and postoperative complications, and IOL stability and centration.Results:Six out of the seven surgical procedures were uneventful with in-the-bag implantation of the IOL. In the first surgery, a tear of the capsular bag lead to IOL exchanging and fixating to the AssiAnchor and to the iris. In the traumatic cataract case, two AssiAnchors were used. A capsular tension ring was implanted in six out of seven surgeries. The average follow-up time was 9.5 ± 6.8 months. All the IOLs were stable and well centered except for the first IOL that exhibited a slight temporal, but not clinically significant, decentration. The distance visual acuity and the refractive parameters improved significantly in all cases.Conclusion:We found the AssiAnchor capsule device an effective tool with a short learning curve for treating subluxated lenses.     

Artisan虹膜固定型人工晶状体在无晶状体眼患者中的应用

目的 观察Artisan虹膜固定型人工晶状体（IOL）在无晶状体眼患者中的应用.方法 回顾性病例系列研究.2008年1月到2010年5月间行Artisan IOL植入术且临床资料完整的无晶状体眼患者46例（46眼）,年龄为21～56岁,平均（32.8±5.2）岁,其中男28例,女18例.所有患者均在神经阻滞麻醉下行Artisan前房虹膜固定型IOL植入,术后随访3～10个月.对手术所需时长、患者裸眼视力、最佳矫正视力、手术源性散光、瞳孔散大直径、角膜内皮计数和术后并发症等指标进行分析,对手术的疗效和安全性进行评估.手术前后裸眼视力、最佳矫正视力和眼压的比较采用配对t检验.结果 植入Artisan IOL所需手术时间平均为（19.8±6.6）min.患者裸眼视力均较术前有明显提高（0.49±0.23 vs1.21±0.22）,与目标屈光状态的差值平均为0.27 D;最佳矫正视力与术前相比无明显差异,手术源性散光为1.45 D.植入IOL后瞳孔直径最大可散至6.77 mm;角膜内皮细胞丢失率为3.6%.术后出现一过性高眼压的有4眼（8.7%）;虹膜萎缩有3眼（6.5%）;IOL脱位1眼（2.2%）.结论 Artisan虹膜固定型IOL在无晶状体眼治疗中具有较好的疗效和较高的安全性,是无晶状体眼患者理想的IOL选择之一.     

Traumatic pediatric cataract: A decade of follow-up after Artisan aphakia intraocular lens implantation

PURPOSE: To describe the long-term clinical outcome of Artisan((R)) aphakia intraocular lens (IOL; Ophtec, Groningen, The Netherlands) implantation in five aphakic eyes of five children, without capsular support, after cataract extraction following penetrating ocular trauma. METHODS: The charts of the five children were retrospectively reviewed. The data collected included follow-up time, nature of injury, age at cataract extraction and IOL implantation, visual outcome, endothelial cell counts, complications, and subsequent surgical interventions. RESULTS: Average follow-up was 11.0 years (range, 8.0-14.6 years). All eyes had a corneal perforation with various degrees of anterior segment injury. Mean patient age at lens extraction was 7.8 years (range, 5.6-10.2 years). Mean age at Artisan aphakia IOL implantation was 7.9 years (range, 5.7-10.2 years). The best spectacle-corrected visual acuity at last follow-up was 20/40 or better in four eyes. Mean endothelial cell loss compared with the healthy fellow eye was 40%. No patients experienced IOL dislocation, corneal decompensation, chronic anterior uveitis, cystoid macular edema, or iris atrophy. One eye had a retinal detachment 19 months after primary injury and needed vitreoretinal surgery. CONCLUSIONS: The Artisan aphakia IOL offers a useful alternative for correction of traumatic childhood aphakia. Although we only have results of a small number of patients, taking into account our long follow-up period, we feel that implantation of the Artisan aphakia IOL can be considered a treatment option in aphakic eyes of children that lack capsular support due to trauma.     

无囊膜支撑无晶状体眼Artisan人工晶状体植入术的疗效

目的:探讨无囊膜支撑的无晶状体眼植入Artisan人工晶状体的有效性和安全性。方法:前瞻性地分析24例24眼无囊膜支撑的无晶状体眼植入虹膜固定Artisan人工晶状体的手术后结果。纳入病例包括外伤性晶状体脱位、视网膜脱离或球内异物行晶状体玻璃体切除术后及晶状体摘出术后囊膜缺失。手术前后进行完整的眼部检查,包括裸眼视力、眼压、角膜内皮计数、瞳孔形态、人工晶状体固定情况、虹膜玻璃体视网膜情况,记录手术中和手术后出现的并发症。结果:患者随访12～24mo。所有手术眼视力均有提高,手术前裸眼视力为手动～0.2(logMAR1.91±0.89),手术后末次随访裸眼视力为0.2～1.0(logMAR0.46±0.59)。手术后1,3,12mo术眼平均等效球镜度数分别为-1.26,-0.43,-0.35D,±2.0D以内者术后3mo和12mo分别占66.7%和83.3%,±1.0D以内者分别占41.7%和50%。手术前及术后3,12mo眼压分别为16.95±7.85,12.38±4.68,15.96±5.25mmHg。手术前及手术后3,12mo平均角膜内皮计数分别为2493.8,2270.3,2263.7个/mm2,手术后1～3mo,4～12mo内皮细胞丢失率分别为8.96%,0.27%,手术后12mo内皮细胞总丢失率为9.23%。手术后无持续性葡萄膜炎,虹膜无明显手术损伤和萎缩,瞳孔形态无变化,Artisan人工晶状体正位牢固固定,对玻璃体视网膜无影响。玻璃体切除眼手术中使用前房灌注可避免眼球塌陷。结论:无囊膜支撑的无晶状体眼植入虹膜固定Artisan人工晶状体是有效和安全的方法,但仍需要长期的随访观察以进一步对Artisan人工晶状体植入术作出评价。     

晶状体囊袋张力环在Marfan综合征晶状体半脱位治疗中的作用

目的探讨晶状体囊袋张力环在晶状体半脱位手术治疗中的应用效果及注意问题.方法对6例(8只眼)马凡综合征伴晶状体半脱位患者在白内障超声乳化摘除人工晶状体植入术中同时植入囊袋环.术前观察晶状体脱位的范围及方位,术后随访3～6月,平均4.8月,测量视力、眼压,并行眼前段裂隙灯检查着重了解人工晶状体位置、有无玻璃体疝等.结果 7只眼均成功植入张力环,术后视力均有不同程度提高,随访期间未发现人工晶状体偏位、眼压升高及玻璃体疝等并发症.1只眼因晶状体脱位范围超过2个象限而放弃植入晶状体囊袋张力环.结论植入囊袋张力环作为马凡综合征伴晶状体半脱位患者行超声乳化白内障手术的有效辅助手段,能提高手术安全性,减少并发症发生.     

Coreoplasty and Artisan Intraocular Lens Implantation for Mydriasis and Aphakic Correction in Post-traumatic Vitrectomized Eyes

 PURPOSE: To evaluate the efficacy and safety of using coreoplasty, and an iris-supported Artisan intraocular lens (IOL), for mydriasis and aphakic correction in post-traumatic vitrectomized eyes. METHODS: A total of 17 aphakic patients were admitted between April 2009 and April 2010 to the ophthalmologic department of Xiamen Eye Center. All eyes had previously received lens removal and vitrectomy. After the retina stabilized and corrected visual acuity improved, the iris was sutured. The Artisan IOL was fixated onto the iris surface. Patients were followed-up at one day, one week, one month and three months postoperatively. The following outcomes were assessed: symptoms of photophobia and glare, uncorrected visual acuity (UCVA), best-corrected visual acuity (BCVA), intraocular pressure (IOP), endothelial cell density (ECD). The diameter of pupil and the anterior chamber depth (ACD) were measured by the anterior segment optical coherence tomography (OCT). RESULTS: Artisan IOLs were successfully implanted in all aphakic eyes. Postoperatively, improvement was observed in photophobia and glare symptoms. UCVA was enhanced in all patients (six eyes had better UCVA postoperatively than BCVA preoperatively). However, there were no significant changes in IOP. Mean loss of ECD was 336.06/mm2. Mean postoperative pupil diameter was 3.67±0.41mm, compared with 5.67±0.57mm preoperatively (P<0.05). Mean ACD was reduced by 0.88mm (3.38±0.33mm preoperatively vs 2.50±0.35mm postoperatively, P<0.05). CONCLUSION: Surgery that combined coreoplasty and Artisan IOL implantation was a safe and effective treatment for correcting aphakia and mydriasis in post-traumatic vitrectomized eyes.     

Artisan lens implantation to correct aphakia after vitrectomy for retained nuclear lens fragments

PURPOSE: To report the results of pars plana vitrectomy (PPV) for retained lens fragments with implantation of an Artisan intraocular lens (IOL) (Ophtec) to correct aphakia. SETTING: University-based referral center. METHODS: In this retrospective case-controlled study, patients who had had a PPV to remove dislocated lens fragments and implantation of an Artisan IOL for pseudophakic correction during initial cataract surgery or PPV were reviewed. RESULTS: Thirteen patients were identified. The preoperative visual acuity was better than 20/200 in 5 patients and the intraocular pressure (IOP) was higher than 21 mm Hg in 8 patients; 3 patients had normal corneas. In 4 patients, an Artisan IOL was implanted during cataract surgery. Postoperative complications included recurrent erosion (1 eye), premacular fibrosis (2 eyes), and a retinal tear (1 eye). Elevation of the IOP occurred in 2 patients and was controllable with medication. Pupillary block developed in 1 patient and persistent cystoid macular edema in another. All but 2 patients gained more than 2 lines of visual acuity postoperatively, and all corneas remained clear during the follow-up (mean 28.9 months; range 2.5 to 69.0 months). CONCLUSIONS: After the removal of dislocated lens fragments with a PPV, Artisan IOL implantation in aphakic patients without capsule support led to few complications and good visual acuity. Placement of an Artisan IOL requires fewer manipulations than transscleral suture fixation of a posterior chamber IOL.     

囊袋张力环植入治疗晶状体悬韧带异常

目的 探讨超声乳化联合囊袋张力环(CTR)及人工晶状体(IOL)植入术治疗白内障有悬韧带异常者的手术效果.方法 10例16只眼具有晶状体悬韧带松弛或部分断裂的白内障,施行超声乳化联合CTR及IOL植入手术.结果 术后随访6月,有2例失访.末次检查8例13只眼的最佳矫正视力(BCVA)都有增进,所有术眼CTR都位于囊袋内,仅有1只眼在术后6个月IOL位置轻度偏中心,3只眼轻度后囊膜混浊.结论 对半脱位晶状体采用超声乳化白内障吸除联合CTR及IOL植入是一安全有效的手术,严爵半脱位和有进展的病例才需作改良CTR(M-CTR)巩膜缝合固定术.     

Treatment of dislocated lenses in patients with Marfan's syndrome using vitrectomy and intraocular lenses

PURPOSE: To evaluate results of surgical complex treatment of lens dislocation in Marfan syndrome cases. MATERIAL AND METHODS: Nineteen eyes of 13 patients were operatively treated for lens dislocation. Pars plana vitrectomy was done in all eyes. Dislocated lenses were removed by lensectomy in 5 eyes and with an intracapsular method in 14 eyes. The scleral fixation technique was used for primary posterior chamber intraocular lens implantation in 18 eyes, and one eye remained aphakic. Time of observation ranged between 6 and 71 months (mean 3.5 years). RESULTS: All eyes achieved improvement in visual acuity or good preoperative visual acuity was maintained. The vision between 6/6 and 6/8 was achieved in 14 patients. There were no serious intraoperative or early postoperative complications. Retinal detachment appeared in two eyes in a long observation time and it was successfully operatively treated. The not good visual results were due to amblyopia (n = 2), complications of retinal detachment surgery (n = 2) and glaucomatous optic disc atrophy coexisting with macular degeneration (n = 1). CONCLUSIONS: Pars plana vitrectomy and primary scleral-fixated IOL implantation gives quick and good visual rehabilitation in adult patients with Marfan's syndrome. The described surgical method is complex and need a prolonged operative time, but gives very good functional results and very few complications.     

Anterior chamber intraocular lens (ACIOL) placement after pars plana lensectomy in pediatric Marfan syndrome.

INTRODUCTION: The management of subluxed crystalline lenses in patients with Marfan syndrome is challenging and may require lensectomy. Options for postoperative optical correction include aphakic spectacles, aphakic contact lens, posterior chamber IOLs sutured to the ciliary sulcus, and open-loop flexible anterior chamber IOLs (ACIOL). We recently began placing ACIOLs in all patients with Marfan Syndrome who were younger than 18 years of age and required lensectomy. METHODS: We used a retrospective chart review design for this study. RESULTS: Eight eyes of 5 patients were treated with pars plana vitrectomy, pars plana lensectomy, and primary ACIOL placement. Follow-up ranged from 9 to 16 months, with a mean of 12.7 months. Ages ranged from 5 to 17 years with a mean of 9 years. Three eyes were functionally aphakic at the time of surgery. Of the 5 eyes with a portion of the lens remaining in the visual axis, none maintained accommodative function by near visual acuity testing. Best-corrected distance visual acuity preoperatively ranged from 20/50 to 20/400, with an average of 20/80 (0.65 logMAR). Postoperative acuity ranged from 20/20 to 20/50, with an average acuity of 20/32 (0.20 logMAR). One patient had an iatrogenic sector iridectomy. No patients experienced corneal decompensation, increased intraocular pressure, persistent inflammation, IOL displacement, or explantation during the follow-up period. CONCLUSIONS: Although long-term follow-up data are unavailable, our cases of primary ACIOL placement in children with Marfan syndrome indicate that this therapy should be considered.     

Cataract surgery in children with chronic uveitis

OBJECTIVE: To evaluate the visual outcome of cataract surgery in children's eyes with chronic uveitis and the feasibility of intraocular lens (IOL) implantation in these cases. DESIGN: Retrospective noncomparative case series. PARTICIPANTS: Seventeen children (20 eyes) with chronic uveitis, dense cataract, and a preoperative visual acuity of 6/120 or less with follow-up of 5 years after the initial cataract surgery. METHODS: In 10 eyes of 10 children (five with juvenile rheumatoid arthritis [JRA] and five with non-JRA-associated uveitis) with uniocular or markedly unequal binocular disease, surgery was carried out through the limbus and a posterior chamber IOL was implanted. In seven children (10 eyes), three with JRA and four with non-JRA-associated disease, a pars plana approach was used, and contact lenses or glasses (for the bilateral cases) were prescribed. RESULTS: The postoperative course and immediate restored visual acuities were similar whether an IOL was implanted or not. One month after the surgery, visual acuity improved in all operated eyes. After monocular surgery, in the younger children, contact lenses were poorly tolerated and their use discontinued. These aphakic eyes remained with low vision, developing strabismus on longer follow-up. Children with JRA-associated uveitis were younger, demonstrated an active intraocular inflammation for an extended period after surgery, and tended to have secondary membranes develop, necessitating a second surgical intervention. Five years after the initial surgery, only two of nine eyes (22%) in the JRA group (one aphakic of a bilaterally affected child and one pseudophakic in a child undergoing cataract surgery in one eye) retained a visual acuity of 6/9 and 6/6, respectively. In the other seven eyes, the visual acuity was 6/60 in one pseudophakic eye and 6/240 or less in six eyes (three aphakic and three pseudophakic). In children with non-JRA-associated uveitis, 6 (four aphakic in two patients bilaterally affected and two pseudophakic) of 11 eyes (54.5%) retained a vision of 6/12 or better. CONCLUSIONS: Cataract surgery in children's eyes with uveitis may be beneficial. IOL implantation seems preferable to correction with contact lenses in young children needing surgery in one eye. In children with JRA-associated uveitis, the final visual results remain guarded because of irreversible amblyopia and a more complicated postoperative course. For these cases, a modified management approach and a better surgical technique are needed.     

【In Press】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, and 16 eyes had prior vitrectomy. The iris was abnormal in 22 cases. Graft dislocation occurred in 5 (17%) 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 6mo postoperative mean BCVA was 20/42. The average center ECD was 1965.3 cells/mm2 at 6mo, and the rate of the donor cell loss was 34.7%. CONCLUSION: DSAEK combined with Artisan aphakia intraocular lens 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.     

虹膜拉钩联合囊袋张力环在晶状体半脱位白内障患者术中的应用

目的探讨虹膜拉钩联合囊袋张力环（CTR）在晶状体半脱位白内障患者术中应用的有效性和安全性。方法回顾性病例研究。各种原因晶状体半脱位白内障患者22例（22眼）,其中外伤性白内障13眼,马凡氏综合征4眼,白内障超声乳化术中悬韧带离断3眼,不明原因者2眼。行3.2 mm透明角膜隧道切口及连续环形撕囊,150°穿刺刀做间隔90°的4个角膜缘穿刺切口,用4个一次性虹膜拉钩钩住撕囊边缘,植入CTR,超声乳化摘除白内障,囊袋内植入后房型人工晶状体。结果22例晶状体半脱位白内障患者均顺利植入了囊袋张力环及后房型人工晶状体,术后患者视力得到提高,所有植入的人工晶状体均基本位于正位,无明显倾斜、偏位。术后随访6～36个月,最佳矫正视力0.2～0.4者6眼,0.5～0.8者11眼,0.8以上者5眼,4例患者出现后发性白内障,未见视网膜脱离等其他并发症。结论在晶状体半脱位白内障超声乳化术中运用虹膜拉钩联合CTR植入,能提高手术安全性,减少手术并发症,是一种有效的白内障超声乳化手术辅助工具。     

Injektorimplantation sklerafixierter Faltlinsen

BACKGROUND: In this pilot study, a new injector technique for small-incision implantation of scleral-fixated intraocular lenses (IOLs) was evaluated for IOL stability and visual rehabilitation. PATIENTS AND METHODS: Secondary lens implantation was performed in 18 aphakic eyes using a new small incision technique with injector implantation. This allowed for haptic suturing with the lens body inside the cartridge. All patients were followed-up for best-corrected visual acuity, refraction, IOL evaluation and ultrasound biomicroscopy. RESULTS: In all eyes the IOL was stable without tilt or torque. Best-corrected visual acuity improved 2.2 ETDRS lines after 1 week and 3.1 lines after a mean follow-up time of 7.9+/-2.8 months. Two eyes were complicated with small, peripheral transillumination defects (n=2), but no pigmentary glaucoma occurred. CONCLUSION: By using a self-sealing tunnel incision and injector technique, significant fluid egress and consecutive transient hypotony is minimized throughout the whole procedure. The technique shows a high IOL stability without tilt and assures rapid visual rehabilitation.     

Cionni endocapsular ring implantation in Marfan's Syndrome

OBJECTIVES: To evaluate the visual outcomes, intraoperative and postoperative complications of Cionni ring implantation in eyes with a subluxated lens associated with Marfan Syndrome. METHODS: This case series included 15 eyes of 12 patients aged 19-56 years with a subluxated lens secondary to Marfan's syndrome operataed at the Departament of Ophtalmology, Toronto Western Hospital between 2003 and 2007. A 2-eyelet Cionni ring and an AcrySof (Alcon) foldable intraocular lens (IOL) were implanted in 13 eyes. Two eyes had trans-scleral IOL fixation in the ciliary sulcus. Best-corrected visual acuity, wavefront evaluation of eye aberration and complication rates were analysed. RESULTS: In all eyes, capsular bag centration was excellent. Preoperative visual acuity ranged from 20/50 to counting fingers, and improved to better than 20/40 in all eyes. The mean follow-up duration was 14+/-9.49 months. The most frequent postoperative complication was posterior capsule opacification, which occurred in 3 eyes (18.7%), 2 of which required a neodymium:YAG posterior capsulotomy. No eye developed retinal detachment. Total eye aberration, tilt and high-order aberrations with a 6-mm pupil diameter decreased significantly after surgery (n = 5): Total eye aberration decreased from a mean of 14.8+/-5.5 preoperatively to 2.1+/-4.3 microns after the operation. Tilt was decreased from 4.1+/-2.5 to 0.12+/-2.1 microns, and high-order aberrations decreased from 4.37+/-3.8 microns, before the operation, to 1.47+/-3.5 after the operation. CONCLUSION: Cionni ring implantation is an effective procedure to correct partial lens subluxation and has few complications (during 14 months of follow-up) in patients with Marfan's Syndrome.     

Comparison of Artisan iris-claw intraocular lens implantation and posterior chamber intraocular lens sulcus fixation for aphakic eyes

AIM: To compare the efficacy and complications of Artisan iris-claw intraocular lens (IOL) implantation and posterior chamber IOL sulcus fixation for the treatment of aphakic eyes without capsular support after vitrectomy.METHODS:A prospective study of 45 cases was conducted. Forty-five eyes without sufficient lens capsule support following pars plana vitrectomy (PPV) combined lens extraction were divided into two groups. Group A:25 eyes received Artisan iris-claw IOL implantation. Group B:20 eyes received posterior chamber IOL sulcus fixation. The corrected distance visual acuity (CDVA) and intraocular pressure (IOP), corneal endothelial cell loss rate, surgical time and complications were compared between the two groups. Pigment changes of trabecular meshwork and anterior chamber depths were measured at each time point in Artisan group.RESULTS:The mean surgical time of Artisan group was significantly shorter (P<0.05). No statistically significant difference in endothelial cell loss rate was noted between two groups at any time point (P>0.05). CDVA of Artian group was better than that of the sulcus fixation group 1d after surgery (P<0.05) and there was no statistically significant difference 1 and 3mo after surgery (P>0.05). Mean IOP showed no significant differences between groups before and after surgery. The postoperative complications of Artisan group were anterior uveitis, iris depigmentation, pupillary distortion and spontaneous lens dislocation. The complications of sulcus fixation group include choroidal detachment, intraocular haemorrhage, tilt of IOL optic part and retinal detachment.CONCLUSION:Secondary Artisan IOL implantation can be performed less invasively and in a shorter surgical time period with earlier visual recovery after surgery compared to transscleral suturing fixation of an IOL. This technique is an effective and safe procedure. It is a promising option for the treatment of aphakic eyes without capsular support after vitrectomy.     

两种前房型人工晶状体治疗无晶状体眼的效果探讨

目的探讨无晶状体眼植入Artisan虹膜夹持型人工晶状体与房角支撑型人工晶状体术后的临床效果及差异。方法收集深圳眼科医院2009年1月至2011年3月住院接受人工晶状体植入术的无晶状体眼患者共37例,其中植入ARTISAN虹膜夹持型人工晶状体19例(19只眼),植入房角支撑型人工晶状体18例(19只眼)。比较术后裸眼视力、最佳矫正视力(BCVA)、角膜内皮细胞计数、眼压、角膜水肿发生率、并发症及人工晶状体的位置。随访时间至术后3个月。结果两组术后视力恢复良好,术后3个月的BCVA无统计学差异。术后3个月两组眼压差异无显著性。Artisan虹膜夹持型组术后3个月角膜内皮丢失率低于房角支撑型组,术后1周内角膜水肿发生率高眼压发生率及术后并发症发生率均较房角支撑型组低。两组术眼的人工晶状体位置均保持良好的居中性。结论 Artisan虹膜夹持型人工晶状体与房角支撑型人工晶状体都是治疗无晶状体眼的有效方法,两者比较,虹膜夹持型人工晶状体植入术损伤更小,更为安全,为较佳的手术方式。两者远期效果的比较尚待进一步观察。     

经透明角膜切口可折叠型人工晶状体缝线固定术的临床观察

目的 探讨对囊膜不足以支撑人工晶状体（IOL）的无晶状体眼患者经透明角膜切口行可折叠IOL缝线固定术的临床疗效.方法 回顾性系列病例研究.对14例（14眼）囊膜不足以支撑IOL的无晶状体眼患者由透明角膜切口行可折叠型IOL缝线固定术,观察术中、术后并发症及术后视力情况.结果 所有患者术中未出现并发症.术后裸眼视力均较术前提高,术后最佳矫正视力较术前最佳矫正视力改善或者无变化的共13例（93％）；1例发生玻璃体少量积血,1例出现IOL光学部轻度偏斜,3例出现一过性高眼压.结论 经透明角膜切口行可折叠型IOL缝线固定术是治疗囊膜不足以支撑IOL的无晶状体眼的一种较好选择.