带虹膜隔人工晶状体植入术治疗白内障合并虹膜缺损的疗效观察

目的　评价带虹膜隔人工晶状体植入术治疗白内障合并虹膜缺损的疗效 ,探讨术后并发症的发生机制。方法　收集 2 5例 (2 7只眼 )行带虹膜隔人工晶状体植入术患者 ,分析手术疗效和并发症的发生情况 ,同时应用房角镜和超声生物显微镜 (UBM)观察术后发生继发性青光眼患者的房角结构和人工晶状体襻位置。术后随访时间 3～ 18个月。结果　术后患者畏光症状明显减轻或完全消失 ;术后视力较术前提高≥ 2行 2 0只眼 (74 1% ) ,变化 <1行 5只眼 (18 5 % ) ,下降 >2行 2只眼(7 4 % )。术后并发症包括继发性青光眼 10只眼 (37 0 % )、散光度数≥ 2 0 0D 17只眼 (6 3 0 % )、角膜失代偿 2只眼 (7 4 % )、前房出血 2只眼 (7 4 % )、玻璃体出血 3只眼 (11 1% )、视网膜脱离 1只眼(3 7% )。在继发性青光眼 10只眼 2 0只人工晶状体襻中 ,9只襻准确固定在睫状沟内 ,其他位置包括前房角、睫状突及睫状突后。房角改变包括房角后退、残留虹膜根部前粘连、房角关闭。结论　带虹膜隔人工晶状体植入术可有效治疗白内障合并虹膜缺损 ;术后继发性青光眼主要与房角损伤有关 ,人工晶状体襻位置异常、眼内出血、持续性炎性反应也参与其发生。     

Black diaphragm intraocular lens implantation in aphakic eyes with traumatic aniridia and previous pars plana vitrectomy

PURPOSE: To evaluate the efficacy of secondary black diaphragm intraocular lens (IOL) implantation in aphakic eyes with traumatic aniridia and previous pars plana vitrectomy (PPV). SETTING: Shandong Eye Institute and Hospital, Qingdao, China. METHODS: This retrospective study comprised 15 aphakic eyes with aniridia and no vitreous that had implantation of a secondary black diaphragm IOL 6 to 72 months after PPV. The PPV was performed as a result of trauma to the posterior segment. Before implantation of the IOL, all patients had reduced visual acuity from aphakia and intolerable glare from aniridia. Eyes were aphakic as a result of previous extracapsular cataract extraction (1 eye), lens extrusion during trauma (3 eyes), or simultaneous cataract lensectomy during PPV (11 eyes). Significant iris defects were present, with 9 eyes being aniridic after the injury. The mean follow-up was 17 months (range 3 to 34 months). The postoperative visual acuity, intra- ocular pressure (IOP), endothelial cell density, IOL centration, and intraocular inflammation were monitored. RESULTS: All 15 eyes had improved visual acuity and marked glare reduction after IOL implantation. No major IOL decentration was seen. Five patients had increased IOP 3 to 5 days after IOL implantation; 3 were known to have secondary glaucoma from trauma before surgery and their IOP was controlled preoperatively (< 21 mm Hg) with timolol 0.5% eyedrops. The other 2 patients had normal- appearing angles, and 1 was diagnosed with hemolytic glaucoma after IOL insertion. Postoperative elevated IOP was controlled by timolol eyedrops (4 eyes) or selective laser trabeculoplasty (1 eye). Hyphema was seen in 1 patient on the first day after IOL implantation, but no further bleeding was noted. Vitreous hemorrhage was seen the first day after IOL insertion in 2 patients. One resolved without sequelae; the other required vitreous washout. Retinal detachment and cystoid macular edema did not occur in any patient. CONCLUSIONS: Black diaphragm IOL implantation can be considered in eyes with coexisting aphakia and aniridia and without vitreous. Intraoperative IOP regulation is crucial in vitrectomized eyes to prevent complications such as expulsive hemorrhage. In general, visual function was better after IOL insertion as a result of better visual acuity and glare reduction. Although this IOL appears to be safe, long-term results must be assessed in studies with a longer follow-up and a larger study group.     

Prosthetic iris implantation for congenital, traumatic, or functional iris deficiencies.

PURPOSE: To determine the efficacy and safety of surgical implantation of prosthetic iris devices in patients with anatomic or functional iris deficiencies. SETTING: Cincinnati Eye Institute, Cincinnati, Ohio, USA. METHODS: Twenty-five patients were enrolled in an interventional prospective noncomparative case series. Twenty-eight eyes had prosthetic iris diaphragm implantation for traumatic iris defects, congenital aniridia or iris coloboma, herpetic iris atrophy, surgical iris loss, or ocular albinism. Prosthetic iris implantation was performed with phacoemulsification and intraocular lens (IOL) implantation in 20 eyes, secondary IOL implantation in 6 eyes, and IOL exchange in 1 eye. A single pseudophakic eye with disabling glare secondary to traumatic aniridia had secondary prosthetic iris implantation alone. The surgical ease of insertion, intraoperative and postoperative complications, postoperative anatomic results, visual acuity, and subjective glare reduction were evaluated. RESULTS: Patients were followed postoperatively for a mean of 10.2 months (range 1.4 to 25.7 months). All eyes achieved the desired anatomic result. Visual acuity was improved in 22 of 28 eyes (79%), unchanged in 5 eyes, and worsened by a single line in 1 eye. Patients were surveyed postoperatively to determine the change in glare disability. The severity of glare disability was subjectively improved in 23 of 24 patients (96%) who responded to the survey. Intraoperative complications included 3 fractured implants as well as an incomplete or torn capsulorhexis in 3 eyes. Postoperative complications included transient hypotony in 2 eyes, mild persistent inflammation in 1 eye, and macular edema followed by a retinal detachment in 1 eye with recent severe trauma. CONCLUSIONS: Implantation of prosthetic iris devices improved postoperative outcomes by reducing glare disability and, in selected cases, by correcting aphakia. Although operating on traumatized, congenitally aniridic, or uveitic eyes presents special challenges, implantation of prosthetic iris devices appears to be a safe and effective method for reducing the ubiquitous glare in patients with iris deficiency.     

外伤性虹膜缺如眼植入虹膜隔人工晶状体后的远期并发症

目的 分析外伤性虹膜缺如患者植入虹膜隔人工晶状体后的远期并发症,探讨其发生原因及预防措施.方法 回顾性系列病例研究.回顾性分析因外伤性虮膜缺如在山东省眼科研究所青岛眼科医院行虹膜隔人工晶状体植入术并在长期随访过程中出现严重并发症的5例患者的资料,归纳其临床特点.其中男性4例,女性1例,年龄13～43岁,随访时间42-108个月.2例于睫状体扁平部玻璃体切除术后行Ⅱ期虹膜隔人工晶状体悬吊术,2例Ⅰ期行白内障摘除联合虹膜隔人工晶状体植入术,1例行虹膜隔人工晶状体悬吊术.结果 所有患者短期随访主观感觉良好,眩光、畏光症状消失,并在一定时期内维持较好的视力.在长期随访过程中均出现了严重的继发性青光眼和大泡性角膜病变,视力下降至指数或手动,并接受穿透性角膜移植和人工晶状体取出术治疗.结论 虹膜隔人工晶状体植入术后可能出现严重的远期并发症,应慎重选择手术适应证,并加强对患者的随访.     

Black diaphragm aniridia intraocular lens for congenital aniridia: long-term follow-up

PURPOSE: To present long-term results of implantation of a black diaphragm aniridia intraocular lens (IOL) in eyes with congenital aniridia. SETTING: Eye Hospital, Heinrich-Heine-University, Düsseldorf, Germany. METHODS: Cataract surgery was performed in 19 eyes of 14 patients with congenital aniridia. The black diaphragm aniridia IOL was implanted in front of the capsular bag in the ciliary sulcus. Mean patient age was 30 years (range 10 to 59 years) and mean follow-up, 46 months (range 12 to 84 months). Before surgery, corneal epithelial disorders; corneal pannus; cataract; hypoplasia of the macula, optic nerve, or both; and nystagmus were present in all 19 eyes. Clinically detectable glaucoma was present in 5 eyes. RESULTS: Despite the presence of amblyopia and nystagmus, visual acuity improved in 14 of the 19 eyes. The main postoperative problems were glaucoma deterioration (4 of 19 eyes) or development (4 of 19 eyes), cystoid macular edema (2 of 11 eyes), chronic endothelial cell loss (3 of 11 eyes), and progression of corneal epithelial disorders (4 of 19 eyes). Glaucoma was controlled by medical or surgical therapy in all patients. Intraocular lens explantation was performed in 2 eyes with glaucoma. CONCLUSION: Implantation of the black diaphragm aniridia IOL improved visual acuity in the majority of patients with a variety of endogenous problems in addition to aniridia.     

Implantation of a black diaphragm intraocular lens for traumatic aniridia.

PURPOSE: To evaluate the suitability and safety of a black diaphragm posterior chamber intraocular lens (IOL). SETTING: Department of Ophthalmology, Leeds General Infirmary, Leeds, United Kingdom. METHODS: Seven patients who had secondary implantation of a Morcher 67G black diaphragm posterior chamber IOL were identified. All patients were men with a mean age of 42 years who had previous ocular trauma resulting in extensive loss of iris tissue (traumatic aniridia). Simultaneous penetrating keratoplasty was performed in 4 cases. Minimum follow-up was 10 months (mean 19 months). RESULTS: Best corrected visual acuity improved in 5 cases and was unchanged in 1 case. The lens was well centered in 5 cases. Two cases developed secondary glaucoma, 1 requiring trabeculectomy. One case developed infective endophthalmitis but had a visual acuity of 6/18 at last follow-up, and 1 had a vitreous and anterior chamber hemorrhage, which resolved. CONCLUSIONS: The black diaphragm posterior chamber IOL overcame aphakia in eyes with considerable loss of iris tissue and may mitigate the visually disabling effects of traumatic aniridia. Although this lens appears safe, caution should be used in its implantation until more patients with longer follow-up are studied.     

Surgical management of iris defects with prosthetic iris devices

PURPOSE: To evaluate the safety and efficacy of surgical implantation of prosthetic iris devices in patients with iris deficiency. METHODS: Nine patients with traumatic iris defects, congenital aniridia or iris coloboma, and surgical or optical iridectomies were included in a noncomparative case series. Cataract surgery with intraocular lens and prosthetic iris implantation was performed in 10 eyes. The visual acuity, subjective degree of glare disability, postoperative anatomic results, and intraoperative and postoperative complications were evaluated. RESULTS: The mean follow-up was 17.75 months (range 4-48 months). Best-corrected visual acuity improved in nine of 10 eyes (90%) and remained unchanged in one eye. Glare subjectively improved in four of five eyes (80%) of patients complaining of glare preoperatively. All eyes achieved the desired anatomic result. Intraoperative complications included one anterior capsular tear. Postoperative complications included a short period of mild postoperative anterior uveitis in four eyes. Secondary glaucoma was absent. CONCLUSION: In patients with iris deficiency, implantation of prosthetic iris device, and intraocular lens implant following cataract surgery appears to be safe and effective in reducing glare disability and improving visual outcomes.     

Implantation of iris devices in congenital and traumatic aniridias: surgery solutions and complications

PURPOSE: To show surgical solutions in patients with traumatic and congenital aniridia, to evaluate the clinical improvement of these patients when iris prosthesis are implanted, and to examine safety and complications of these implants in a long-term follow-up. METHODS: Eight patients were included in this retrospective noncomparative case series. Nine eyes had an artificial iris implantation for traumatic or congenital aniridia. Three eyes received a black diaphragm intraocular lens (IOL) in capsular bag after phacoemulsification. An aniridia prosthesis, sulcus sutured, in front of a previous IOL was implanted in two eyes. A black diaphragm IOL, sulcus sutured, in two eyes; two iris diaphragm rings, in front of the previous IOL, in one eye; and a sector iris prosthesis in front of an IOL in the last eye were implanted. Mean follow-up was 22.5 months (range 16 to 44 months). RESULTS: All patients had improved visual acuity (VA) and visual comfort after surgery. The glare disability was subjectively better in all cases. Two patients developed new ocular hypertension after surgery; one of them was controlled by medical treatment and the other needed cyclodiode. Two of the patients with glaucoma preoperatively also needed cyclodiode procedure and one of them an Ahmed valve. CONCLUSIONS: Several kinds of artificial iris implants are available. In all our patients with aniridia, iris artificial prostheses improved VA and diminished visual discomfort. Glaucoma is the most important complication after artificial iris implant. It is possible to implant the iris prosthesis in the capsular bag, but this requires a large capsulorrhexis and presents a surgical challenge.     

虹膜型人工晶状体植入术

目的 探讨虹膜型人工晶状体植入术的临床疗效。方法 采用缝线悬吊方法对眼外伤致无虹膜和先天性无虹膜患者23例（23只眼）行虹膜型人工晶状体植入术,记录术后视力和并发症情况。结果 术后全部患者畏光症状明显减轻,术后裸眼视力提高,视力≥0.1者16只眼（70%）。术中玻璃体出血2只眼;术后人工晶状体表面渗出斑沉着13只眼,角膜失代偿5只眼,高眼压3只眼,黄斑裂孔和复发性视网膜脱离各1只眼。结论 虹膜型人工晶状体植入术可改善无虹膜和晶状体患者的视觉不适和高度远视屈光状态;但此类患者病情复杂,应把握手术适应证,充分做好术前准备工作。     

Outcomes of prosthetic iris implantation in patients with albinism

PURPOSE: To assess the safety and efficacy of implantation of prosthetic iris devices in patients with albinism. SETTING: Private practice, Cincinnati, Ohio, USA. METHODS: This retrospective noncomparative case series comprised 13 eyes of 8 patients with diminished pigment epithelium of the iris secondary to albinism. All eyes had anterior segment surgery with intraocular lens (IOL) and prosthetic iris device implantation. Eleven eyes received an endocapsular-type iris reconstruction implant (Morcher aniridia interdigitating rings), and 2 eyes (1 patient) received a combined iris-IOL device (Ophtec model 311). The visual acuity, subjective glare reduction, postoperative anatomical outcomes, and intraoperative or postoperative complications were reviewed. RESULTS: All eyes achieved the desired anatomic result. The best corrected visual acuity improved in 8 of 13 eyes, remained stable in 3 eyes, and decreased in 2 eyes. Glare and photophobia improved subjectively in 6 of 8 patients, remained unchanged in 1 patient, and increased in 1 patient after implantation of an artificial iris diaphragm. There were no intraoperative or postoperative complications. CONCLUSIONS: Implantation of prosthetic iris devices appears to be useful in the management of patients with iris deficiency secondary to albinism. The procedure was safe and particularly effective in reducing glare and photophobia in most patients.     

带虹膜膈人工晶状体治疗无晶状体眼并虹膜缺失的初步报告

目的评价无晶状体眼并虹膜缺失患者眼中植入带虹膜膈人工晶状体的临床效果.方法对18例(18眼)由于外伤、手术等原因造成的无晶状体眼并虹膜缺失患者行带虹膜膈人工晶状体的植入,观察手术前后视力和各种手术并发症.结果平均随访1.1±0.6a,18眼术后裸眼视力为0.1～0.5,与术前比较差异有非常显著性意义(P＜0.01);术后最佳矫正视力不能达到术前最佳矫正视力,差异有非常显著性意义(P＜0.01);全部患者的畏光症状改善.结论带虹膜膈人工晶状体植入治疗无晶状体眼并虹膜缺失有效而安全,可使患者获得较好的视觉质量.但其仍存在损失最佳矫正视力的缺点.     

Implantation of black diaphragm intraocular lenses in congenital and traumatic aniridia

PURPOSE: To evaluate the safety and efficacy of the black diaphragm intraocular lens (IOL) implantation for the treatment of congenital and traumatic aniridia. MATERIAL AND METHODS: Seven black diaphragmatic IOLs were implanted in the eyes of 6 patients between 1997 and 1998. There were 5 males and 1 female. The mean age of them was 42.8 years (range: 22-54 years). Follow-up ranged from 9 to 20 months (mean: 14.2 months). Traumatic aniridia was present in 4 eyes and congenital aniridia in 3 eyes. Pars plana vitrectomy was combined with the simple outside-in method of scleral fixation of IOLs in 6 cases. Three of these eyes were aphakic (all with traumatic aniridia) and in 3 eyes (two congenital cases, one traumatic case) subluxated lens was simultaneously removed. In one case of congenital aniridia with mature cataract, ECCE and ciliary sulcus implantation without scleral fixation were performed. RESULTS: There were very few complications. Ciliary sulcus bleeding appeared in 2 cases during scleral fixation. Transient post-operative corneal oedema was observed in 2 eyes, raised intraocular pressure in 3 eyes, and dispersed blood in vitreous cavity in 2 eyes. All IOLs were well centred. The improvement in best corrected visual acuity was achieved in 5 cases, while good pre-operative best corrected visual acuity was maintained in 2 cases. CONCLUSIONS: Diaphragmatic IOL can be fixated to the sclera in cases without capsular support or it can be implanted into ciliary sulcus after ECCE. Reconstruction of 5 mm pupil and intraocular correction of aphakia enable good visual rehabilitation of patients. The combined procedure of pars plana vitrectomy and scleral fixation of diaphragmatic lens is safe and effective in traumatic and congenital aniridia.     

儿童带虹膜隔人工晶状体植入术的临床应用

目的：探讨带虹膜隔人工晶状体在儿童内障术后的应用。方法：对12例（12只眼）伴无虹膜或虹膜缺损的先天性或外伤性白内障儿童施行白内障注吸术和带虹膜隔人工晶状体植入术。结果：随访平均4．33月,所有病例的视力都较术前有所改善,其中8眼（66．675）的矫正视力≥0．1,最好者达0．6。术后并发症视网膜脱离1眼,严重色素膜炎2眼,人工晶状体移位3眼。结论带虹膜隔人工晶状体植入术是儿童无虹膜或虹膜缺损眼白内障术后的一种有铲的矫正无晶状体眼的方法。     

虹膜膈人工晶状体用于治疗外伤性白内障伴虹膜缺损的临床观察

目的:分析虹膜膈人工晶状体植入术对外伤白内障合并无虹膜或虹膜大部分缺损患者的临床效果。方法:采用植入带虹膜膈人工晶状体治疗9例9眼无虹膜或大部分无虹膜的外伤性白内障患者,观察视力及各种手术并发症。结果:全部病例带虹膜膈人工晶状体植入成功,术后视力均有不同程度提高(指数/眼前～0.6),8例畏光症状全部消除,1例明显减轻。1例人工晶状体襻折断,3例发生睫状体少量出血,3例角膜水肿,5例葡萄膜炎,4例继发性青光眼,1例大泡性角膜炎。结论:带虹膜膈人工晶状体对无虹膜或大部分虹膜缺损的外伤性白内障患者提供了一个行之有效的治疗方法。     

Aniridie-Intraokularlinsen bei Augen mit traumatischen Irisdefekten

BACKGROUND: Globe injuries frequently are the cause of permanent loss of visual function. Especially ruptures of the globe have a 50 times lower chance of achieving a final visual acuity better than 20/200 as compared to contusions of the globe. Besides injury to the retina and choroids, injury of the iris-lens diaphragm plays an important role for visual rehabilitation (10% iris defects and 1% aniridia after blunt trauma). Against this background the surgical results after implantation of aniridia intraocular lenses were investigated. PATIENTS AND METHODS: Eleven patients (41.9+/-19.6 years of age) after globe injury (three ruptures of the globe, eight penetrating injuries with trauma of the iris) were implanted with an aniridia IOL. RESULTS: The implantation of an aniridia IOL was performed on average 1.0+/-0.6 years (range: 0.4-2.3 years) after the primary injury. In ten eyes an aniridia IOL model HMK ANI 2 (Ophtec/Polytech) was implanted and in one eye an aniridia IOL model 67 (Morcher). Most patients were very satisfied with the results achieved (average corrected visual acuity 0.48; 0.05-1.0). Of the operated eyes, 63% reached a visual acuity >/=0.4. All patients noticed a significant reduction in glare disability as compared to the preoperative condition. The incidence of secondary glaucoma remained unchanged after the secondary implantation. One patient demonstrated retinal detachment 3 months after receiving the secondary implant, which was successfully treated with vitrectomy and gas tamponade. CONCLUSIONS: The implantation of aniridia IOLs seems to be a beneficial therapeutic option in post-traumatic eyes with partial or complete aniridia and aphakia with good visual recovery. During the postoperative follow-up special attention must be paid to sufficient regulation of intraocular pressure and to the retinal situation.     

Bilateral cataract surgery combined with implantation of a brown diaphragm intraocular lens after trabeculectomy for congenital aniridia

A 17-year-old male patient was referred for poorly controlled glaucoma on maximal medication, congenital aniridia, cataract, nystagmus, and hypoplasia of the macula. A bilateral filtering procedure was performed to control the glaucoma. Three months later, a slow motion phacoemulsification and implantation of a brown diaphragm intraocular lens (IOL) was attempted. Despite the presence of nystagmus and hypoplasia of the macula, the visual acuity improved from 20/300 to 20/100 in the right eye and from 20/400 to 20/150 in the left eye. Both aniridia IOLs were well centered, the anterior segment was quiet with normal intraocular pressure without medication, and all of the patient's glare symptoms disappeared. A single-piece iris diaphragm and optical lens offer a safe alternative for patients who previously had no viable options for iris reconstruction. The most serious postoperative problem, glaucoma, should be addressed before the cataract and lens implantation is performed to avoid a possible acceleration of the glaucoma progression by the large aniridia IOL.     

带虹膜人工晶体在外伤性无虹膜无晶体眼的应用

目的 :改善外伤性无虹膜、无晶体眼或白内障患者的羞明症状 ,提高视力。方法 :使用德国MORCHER公司生产的带虹膜人工晶体为 3 7例无虹膜、无晶体或合并外伤性白内障、玻璃体出血的患者施行了白内障摘除或晶体、玻璃体切除联合带虹膜人工晶体植入术及带虹膜人工晶体二期植入术。结果 :术后患者羞明症状明显改善 ,视力有不同程度的提高。结论 :带虹膜人工晶体对治疗外伤性无虹膜、无晶体眼具有良好的实用价值 ,其术后并发症值得关注     

Pars plana vitrectomy and transscleral fixation of black diaphragm intraocular lens for the management of traumatic aniridia

BACKGROUND AND OBJECTIVES: Partial or complete aniridia occurring after severe ocular trauma is a difficult therapeutic problem. Diaphragm intraocular lenses were developed for the correction of aniridia, but the safety and efficacy of implanting such lenses are not well established in traumatic cases because of very few reports, and the small number of cases studied. PATIENTS AND METHODS: Six patients, 4 men and 2 women with a mean age of 44 years, were treated for traumatic aniridia using pars plana vitrectomy and transscleral fixation of a black diaphragm intraocular lens. Total aniridia was observed in 3 eyes and partial aniridia in 3 eyes. Four eyes were aphakic and severe lens subluxation was seen in 2 eyes. Vitreous hemorrhage coexisted in 2 patients and bacterial endophthalmitis was present in 1 patient. Follow-up time ranged between 4 and 39 months (mean, 23 months). RESULTS: Best-corrected visual acuity improved in 5 patients and 1 remained unchanged. Good visual acuity (20/20 - 20/40) was achieved in all cases and all lenses were well-centered. No severe complications were noted. Three of 6 patients required glaucoma topical medications pre- and postoperatively achieving good intraocular pressure control. CONCLUSION: The management of traumatic aniridia using pars plana vitrectomy and implantation of scleral fixation black diaphragm intraocular lenses seem to be safe. Very good functional results and lack of severe complications are encouraging. Additional cases with a longer follow-up study are necessary to support our opinion.     

眼外伤玻璃体切割术后带虹膜隔人工晶状体植入术

目的 探讨眼外伤后无虹膜无晶状体眼的治疗方法。方法 对2例(2只眼)眼外伤玻璃体切割术后无虹膜无晶状体眼患者施行带虹膜隔人工晶状体植入术。结果 术后所有患者畏光症状消失，视力明显提高，无任何严重并发症发生。结论 带量膜隔人工晶状体植入术是目前矫正无晶状体眼伴无虹膜的安全有效方法。     

Visual function after implantation of aniridia intraocular lens for traumatic aniridia in vitrectomized eye

PURPOSE: To evaluate the efficacy and safety of aniridia posterior chamber intraocular lens (PCIOL) in traumatic aniridia and aphakia in vitrectomized eyes. METHODS: Four aphakic patients with traumatic aniridia and previous pars plana vitrectomy (PPV) due to posterior segment trauma enrolled in the study, and had secondary implantation of an aniridia PCIOL. Two patients were men and two women with mean age of 39.25 years. Complete ophthalmic examinations, including preoperative and postoperative visual acuity in dark and light, glare disability, visual function (using VF-9 questions modified from VF-14), stereopsis, and contrast sensitivity in 3, 6, 12, and 18 cycle per degree frequencies, were done for all patients. Postoperative intraocular pressure (IOP), IOL centration, and intraocular inflammation were monitored. Mean follow-up was 12.25 months (range 7 to 15 months). RESULTS: Visual acuity improved in all four patients, especially in the light. Glare was subjectively reduced in all of them. Stereopsis was measurable in three of them postoperatively. Contrast sensitivity improved in all patients, especially in brightness and lower frequencies. All four eyes had improved VF-9. All eyes achieved the desired anatomic results. Two cases developed elevated IOP early after surgery. In one eye, IOP elevation was transient and controlled with antiglaucoma medication, but the other eye, which had secondary glaucoma from previous trauma, required cyclophotocoagulation for the IOP to be controlled. No patient developed chronic uveitis or redetachment. CONCLUSIONS: The aniridia PCIOL can overcome aphakia, reduce glare, and increase visual function, contrast sensitivity, and stereopsis in vitrectomized eyes with traumatic aniridia. Although this kind of IOL appears safe, some disadvantages are secondary glaucoma and reduced visibility of peripheral fundus, and caution should be used in its implantation until more patients with longer follow-up are studied.