secondary intraocular lens

继发性人工晶状体
  • 文章类型: Case Reports
    目的:介绍来自俄亥俄州阿米什人或门诺人人群的一系列4例患者的孤立性外翻。方法:对一个病例系列进行评估。结果:4例双侧晶状体半脱位在ADAMTSL4中诊断为纯合c.767_786del致病变异。他们的年龄从2岁到22岁不等。三例有症状,并通过晶状体切除术进行手术治疗,玻璃体切除术,和有或没有二次人工晶状体(IOL)植入的眼内光凝。观察到一名无症状患者。非弱视眼的术后视力范围为20/20至20/60。结论:ADAMTSL4中的致病性纯合子c.767_786del变体可能是俄亥俄州阿米什人和门诺人种群中双侧孤立性外翻的原因,可能是创始人效应的结果。玻璃体切除术和晶状体摘除伴或不伴二次IOL植入可能导致良好的视力结果。无视网膜脱离病例。
    Purpose: To present a series of 4 patients from the Ohio Amish or Mennonite populations with isolated ectopia lentis. Methods: A case series was evaluated. Results: Four cases with bilateral lens subluxations were diagnosed with a homozygous c.767_786del pathogenic variant in ADAMTSL4. Their ages ranged from 2 to 22 years. Three cases were symptomatic and were managed surgically with lensectomy, vitrectomy, and endolaser photocoagulation with or without secondary intraocular lens (IOL) implantation. One asymptomatic patient was observed. The postoperative visual acuity ranged from 20/20 to 20/60 in nonamblyopic eyes. Conclusions: The pathogenic homozygous c.767_786del variant in ADAMTSL4 may be a cause of bilateral isolated ectopia lentis in the Ohio Amish and Mennonite populations, likely as a result of a founder effect. Vitrectomy and lens extraction with or without secondary IOL implantation may lead to good visual outcomes. There were no cases of retinal detachment.
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  • 文章类型: Case Reports
    报告一例Urrets-Zavalia综合征(UZS)。
    一名59岁男子接受了脱位的人工晶状体摘除和巩膜缝合人工晶状体的放置。手术后,手术眼的瞳孔扩大了,固定,对收缩液滴没有反应。
    此病例扩展了UZS的已知病因。可能的预防措施可能包括术前筛查高原虹膜和术中使用虹膜钩代替药物扩张。
    UNASSIGNED: To report a novel case of Urrets-Zavalia syndrome (UZS).
    UNASSIGNED: A 59-year-old man underwent removal of a dislocated intraocular lens and placement of a scleral-sutured intraocular lens. After surgery, the pupil in the operative eye was dilated, fixed, and unresponsive to constricting drops.
    UNASSIGNED: This case expands the known etiology of UZS. Possible preventative measures may include pre-operative screening for plateau iris and intra-operative use of iris hooks instead of pharmacological dilation.
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  • 文章类型: Journal Article
    UNASSIGNED: Iris-claw intraocular lens (IC-IOL) implantation and sutureless scleral fixation of intraocular lenses (SSF-IOL) are two commonly preferred surgical approaches for the management of aphakic patients without sufficient capsular support. The aim of this study was to compare the outcomes of IC-IOL implantation and trocar-assisted SSF-IOL implantation.
    UNASSIGNED: The medical records of secondary IOL implantation patients were retrospectively reviewed. All patients had a detailed ophthalmological examination, including LogMAR best-corrected distance visual acuity (CDVA), intraocular pressure (IOP), and endothelial cell density (ECD) preoperatively and postoperatively. SPSS 21.0 software was used for the statistical analysis.
    UNASSIGNED: There were 15 patients in the IC-IOL group and 12 patients in the SSF-IOL group. Age and gender distributions were similar between the groups (p=0.456 and p=0.398, respectively). Similarly, patients in both groups had similar CDVA preoperatively and postoperatively (p=0.51, p=0.48, respectively). Both IC-IOL and SSF-IOL implantation significantly increased CDVA (p=0.001 and p=0.005, respectively). IOP remained unchanged in both groups. However, ECD reduced significantly following both IC-IOL and SSF-IOL implantation (p=0.001 and p=0.005, respectively) and trocar-assisted SSF-IOL implantation resulted in significantly more endothelial loss compared to IC-IOL implantation (439.5±89 vs. 164.4±53, p=0.013).
    UNASSIGNED: Both surgical approaches increased CDVA significantly and at similar levels. However, trocar-assisted SSF-IOL implantation resulted in significantly more endothelial loss compared to IC-IOL implantation. None of the patients developed bullous keratopathy, but this difference should be kept in mind, especially in patients with critically low ECD.
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  • 文章类型: Journal Article
    分析人工晶状体(IOL)计算公式在预测接受法兰巩膜内人工晶状体固定术的患者术后结果中的视觉结果和准确性。
    案例系列。
    23例患者使用法兰巩膜内固定技术进行了二次IOL置入。
    回顾性图表回顾。
    根据明显的屈光校正了远距视敏度(CDVA)和术后等效球面。
    视力从20/577提高到20/58。总的来说,实际的屈光度比预期的近视多0.06D。Holladay2,SandersRetzlaffKraff/理论界(SRK/T)和BarrettUniversalII导致轻度近视意外(-0.55,-0.18和-0.20D)。Haigis和Hill-RBF(径向基函数)导致轻度远视意外(0.28和0.28D)。HofferQ和Holladay1是最准确的(-0.02D和-0.08D)。
    带法兰的巩膜内人工晶体固定术可改善其他后段病变患者的视力。有效的晶状体定位可能类似于袋内定位。采用袋中计算的HofferQ和Holladay1公式是最准确的。
    UNASSIGNED: To analyze visual outcomes and accuracy of intraocular lens (IOL) calculation formulas in predicting postoperative outcomes in patients undergoing flanged intrascleral IOL fixation.
    UNASSIGNED: Case Series.
    UNASSIGNED: Twenty-three patients who had undergone secondary IOL placement using flanged intrascleral fixation technique.
    UNASSIGNED: Retrospective chart review.
    UNASSIGNED: Corrected distance visual acuity (CDVA) and postoperative spherical equivalent based on manifest refraction.
    UNASSIGNED: Visual acuity improved from 20/577 to 20/58. Overall, the actual refraction was 0.06 D more myopic than predicted. Holladay 2, Sanders Retzlaff Kraff/Theoretical (SRK/T) and Barrett Universal II resulted in mild myopic surprise (-0.55, -0.18 and -0.20 D). Haigis and Hill-RBF (Radial Basis Function) resulted in mild hyperopic surprise (+0.28 and +0.28 D). Hoffer Q and Holladay 1 were the most accurate (-0.02D and -0.08 D).
    UNASSIGNED: Flanged intrascleral IOL fixation improved vision even in patients with other posterior segment pathologies. The effective lens positioning is likely similar to in-the-bag positioning. Hoffer Q and Holladay 1 formulas with in-the-bag calculations were the most accurate.
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  • 文章类型: Journal Article
    UNASSIGNED:评估需要二次IOL或IOL交换的大疱性角膜病变(BK)患者的Descemet剥脱内皮角膜移植术(DSEK)和瞳孔后固定虹膜爪人工晶状体(IOL)植入术后青光眼的发生率。
    未经评估:在本回顾性病例系列中,对22例接受DSEK和瞳孔后固定虹膜爪人工晶状体植入术的患者的病历进行了评估.术前视力,眼内压(IOP),术后不同时间段的眼压,术中及术后并发症进行分析。
    UNASSIGNED:共分析了22例患者(7例女性和15例男性)的22只眼。中位年龄为62岁,术后随访的中位时间为106.5天。矫正视力从中位数1.85logMAR提高到1.68logMAR。所有患者均未出现术中并发症。3例患者(13.6%)在术后第1天出现供体组织脱位,成功再起泡。六只眼(27.3%)移植失败,需要穿透性角膜移植术。11只眼睛(50%)的IOP持续升高,其中2例(9.09%)出现高眼压,9例(40.9%)进展为青光眼。
    UNASSIGNED:DSEK联合瞳孔后固定虹膜爪晶状体是需要二次IOL或IOL交换的无晶状体/假晶状体BK的良好手术选择。手术后定期监测IOP至关重要,因为术后存在IOP升高和青光眼的风险。临床医生应警惕并控制IOP以防止青光眼进展。
    UNASSIGNED: To assess the incidence of glaucoma after combined Descemet\'s stripping endothelial keratoplasty (DSEK) and retropupillary fixated iris-claw intraocular lens (IOL) implantation in the patients with bullous keratopathy (BK) who required secondary IOL or IOL exchange.
    UNASSIGNED: In this retrospective case series, medical records of 22 patients who underwent combined DSEK and retropupillary fixated iris-claw IOL implantation were evaluated. Preoperative vision, intraocular pressure (IOP), postoperative IOP at different time periods, and intraoperative and postoperative complications were analyzed.
    UNASSIGNED: A total of 22 eyes of 22 patients (7 females and 15 males) were analyzed. The median age was 62 years, and the median duration of the postoperative follow-up was 106.5 days. The corrected distance visual acuity improved from a median of 1.85 logMAR to 1.68 logMAR. None of the patients had intraoperative complications. Three patients (13.6%) had dislocation of the donor tissue on the 1st postoperative day and were successfully rebubbled. Six eyes (27.3%) had graft failure and required penetrating keratoplasty. Eleven eyes (50%) had a sustained rise in the IOP, of which 2 (9.09%) had ocular hypertension and 9 eyes (40.9%) progressed to glaucoma.
    UNASSIGNED: DSEK combined with retropupillary fixated iris-claw lens is a good surgical option for the management of aphakic/pseudophakic BK in patients who require secondary IOL or IOL exchange. Regular IOP monitoring after the surgery is an essential, as there is a risk of IOP rise and glaucoma in the postoperative period. Clinicians should be vigilant and control the IOP to prevent glaucoma progression.
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  • 文章类型: Case Reports
    目的:报道2例山药人工晶状体(IOL)植入术后眼压低下合并黄斑病变的病例。并使用局部经巩膜睫状体光凝(TSCPC)成功治疗这种疾病。
    方法:1.37岁的男性患有儿童BB枪相关的左眼(OS)损伤,并患有创伤性虹膜透析和角度凹陷,接受了平坦部玻璃体切除术和YamaneIOL放置治疗半脱位性外伤性白内障OS。术后低眼压[眼压(IOP)5-6mmHg]和黄斑病变,术后1个月最佳矫正视力(BCVA)为20/200,提示转诊,并进行局部TSCPC。9天后眼压突然升高,对治疗有反应,低眼压和黄斑病变解决了.2.87岁男性,既往有OS视网膜脱离,接受巩膜扣带术治疗,平坦部玻璃体切除术x2,白内障摘除术后8至37年,出现颞侧沟IOL触觉穿透虹膜和致密玻璃体出血。他接受了平坦部玻璃体切除术,IOL外植体和YamaneIOL放置OS。术后低眼压(IOP1-4mmHg)和黄斑病变,术后1个月超声检查提示转诊。患者接受了2轮局部TSCPC;在他的第二次治疗后,在接下来的8个月中,IOP范围为9至14mmHg,黄斑病变得以缓解。
    结论:我们强调了在高度创伤的眼睛中放置YamaneIOL后发生环透析裂的风险,以及在这种情况下局部TSCPC对裂隙闭合的好处。
    OBJECTIVE: To report two cases of hypotony with maculopathy related to cyclodialysis cleft after Yamane intraocular lens (IOL) implantation, and the use of localized transscleral cyclophotocoagulation (TSCPC) to successfully treat this condition.
    METHODS: 1. 37 year-old man with childhood BB-gun related injury in the left eye (OS) and traumatic iridodialysis and angle recession underwent pars plana vitrectomy and Yamane IOL placement for subluxed traumatic cataract OS. Postoperative hypotony [intraocular pressure (IOP) 5-6 mmHg] and maculopathy with best corrected vision acuity (BCVA) of 20/200 at 1 month postoperative prompted referral, and localized TSCPC was performed. Nine days later sudden elevation of IOP occurred, responsive to treatment, and the hypotony and maculopathy resolved. 2. 87 year-old man with prior OS retinal detachments treated with scleral buckling, pars plana vitrectomy x 2, and cataract extraction with sulcus IOL ranging from 8 to 37 years prior presented with temporal sulcus IOL haptic penetration through the iris and dense vitreous hemorrhage. He underwent pars plana vitrectomy, IOL explantation and Yamane IOL placement OS. Postoperative hypotony (IOP 1-4 mmHg) and maculopathy with evidence of cyclodialysis cleft on ultrasonography at 1 month postoperative prompted referral. The patient underwent 2 rounds of localized TSCPC; after his second treatment, IOP ranged from 9 to 14 mmHg over the next 8 months and maculopathy resolved.
    CONCLUSIONS: We highlight the risk of development of cyclodialysis cleft after Yamane IOL placement in highly traumatized eyes, and the benefit of localized TSCPC in such cases for cleft closure.
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  • 文章类型: Case Reports
    为了描述一种改进的触觉外化技术,用于基于套管针的人工晶状体无缝线巩膜固定,以避免以玻璃体视网膜外科医生不熟悉的方式在虹膜平面中使用镊子。
    这个前景,介入病例系列包括4例人工晶状体脱位患者的4只眼。改进的触觉外化技术通过有意将IOL放到视网膜上并使用镊子在从同一抓取直接外化之前抓住触觉的尖端,避免了虹膜平面操纵的陷阱。
    4例患者使用改良的触觉外化技术行巩膜内固定术。一名患者在术后第1天失去随访。在最后一次跟进时,所有眼睛都显示出巩膜固定IOL的稳定性和良好的浓度。所有三名患者均达到了与手术前相同或更好的最佳矫正视力。一名患者出现玻璃体出血,后来自发消退。
    修改后的触觉外化技术是使用玻璃体视网膜外科医生熟悉的操作进行的简单而快速的修改。它已经证明了在一小部分患者中的安全性。
    UNASSIGNED: To describe a modified technique of haptic externalization for trocar-based sutureless scleral fixation of intraocular lenses, in order to avoid working with forceps in the iris plane in a manner that may be unfamiliar to the vitreoretinal surgeon.
    UNASSIGNED: This prospective, interventional case series included four eyes of four patients with dislocated intraocular lens (IOL). The modified haptic externalization technique avoids the pitfalls of iris-plane maneuvers by intentionally dropping the IOL onto the retina and using the forceps to grasp the tips of the haptics prior to direct externalization from the same grab.
    UNASSIGNED: Four patients underwent scleral fixation of IOL using modified haptic externalization technique. One patient was lost to follow up after postoperative day 1. At the last follow up, all eyes demonstrated stability and good centration of scleral fixated IOL. All three patients achieved a best corrected visual acuity same or better compared to before the operation. One patient developed vitreous hemorrhage which later spontaneously resolved.
    UNASSIGNED: The modified haptic externalization technique is a simple and quick modification using maneuvers familiar to vitreoretinal surgeons. It has demonstrated safety among a small pilot group of patients.
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  • 文章类型: Case Reports
    我们正在报告一例22岁的双侧小眼症和微角膜患者,其中改进的无缝线巩膜固定人工晶状体植入术技术提供了一种成功的无晶状体康复替代方案,具有良好的视觉效果和生活质量的显着改善。由于解剖学异常和有关处理此类病例的文献有限,因此在微眼科中处理无晶状体眼具有挑战性。使用隐形眼镜的无晶状体的视觉康复受到不耐受和不良镜片配合的限制。显著的光学像差可能会限制无晶状体眼镜的使用,进一步加剧患者的眼球震颤。因此,二次IOL植入似乎是一种合理的康复选择;然而,它在微眼科中具有手术挑战性。
    We are reporting a case of a 22-year-old lady with bilateral microphthalmia and microcornea, in which a modified technique for sutureless scleral fixated intraocular lens implantation provided a successful aphakic rehabilitation alternative with a good visual outcome and significant improvement in quality of life. Management of aphakia in microphthalmic eyes is challenging due to the anatomical abnormalities and limited literature on managing such cases. Visual rehabilitation for aphakia using contact lenses is limited by intolerance and poor lens fitting. Significant optical aberrations may limit aphakic spectacle use, further exacerbated in patients with nystagmus. Thus, secondary IOL implantation seems to be a reasonable rehabilitation alternative; however, it is surgically challenging in microphthalmic eyes.
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  • 文章类型: Journal Article
    UNASSIGNED: To assess the visual outcome and complications following retropupillary-fixated iris-claw intraocular lens (IOL) implantation.
    UNASSIGNED: For this retrospective, non-comparative study, chart review of patients who underwent retropupillary iris-claw IOL implantation for the correction of aphakia from July 2014 to October 2018 and had a minimum postoperative follow-up of 2 months was carried out. Postoperative corrected distance visual acuity (CDVA), intraocular pressure (IOP), and complications were noted.
    UNASSIGNED: One hundred and twenty-two eyes of 122 patients (mean follow-up: 7.48 ± 5.2 months, range, 2 months-3.5 years) were enrolled in the study. The mean logMAR CDVA improved from 1.36 ± 0.52 preoperatively to 0.5 ± 0.42 postoperatively, at the last follow-up visit (P < 0.0001). The final CDVA improved in 110 eyes (90.2%), remained unchanged in 8 eyes (6.6%), and worsened in 4 eyes (3.3%). In cases of pre-existing cystoid macular edema (CME) or excessive intraoperative manipulations, 0.05 ml of 4 mg intravitreal triamcinolone acetonide (IVTA) was injected at the end of the surgery. Twenty eyes (16.4%) had transient ocular hypertension (OHT), 6 eyes (4.9%) had persistent OHT, and 2 eyes (1.6%) progressed to glaucoma. Choroidal detachment was noted in 2 eyes (1.6%), CME in 6 eyes (4.9%), 2 eyes (1.6%) had retinal detachment, 20 eyes (16.4%) had significant ovalization of pupil, 8 eyes (6.6%) had one haptic disenclavation, 1 eye (0.8%) had corneal decompensation, and 1 eye (0.8%) had endophthalmitis.
    UNASSIGNED: Retropupillary iris-claw IOL provides good visual rehabilitation with a few complications. Its ease of insertion and short surgical time makes it a good option to correct aphakia in patients with an inadequate capsular support.
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  • 文章类型: Journal Article
    UNASSIGNED: To compare the incidence of postoperative endophthalmitis after eventful cataract surgery i.e. posterior capsular rupture, in patients managed with anterior vitrectomy and intra ocular lens implantation intraoperatively to patients managed with anterior vitrectomy and intraocular lens implantation two weeks after the posterior capsule rupture.
    UNASSIGNED: This comparative study was conducted at Layton Rahamatullah Benevolent Trust, Free Base Eye Hospital Korangi, Karachi from February 2017 to December 2018. The study included two groups, group A had patients with intra ocular lens implanted after posterior capsule rupture intraoperatively, while Group B had patients with intra ocular lens implanted after two weeks of initial surgery. Incidence rate of post-operative endophthalmitis was compared between two groups, which happened within six weeks after intra ocular lens implantation surgery.
    UNASSIGNED: Total number of cataract surgeries that were performed during the study was 37,969. Incidence of postoperative endophthalmitis was 0.0019%. The study enrolled patients with complicated cataract surgeries that were 3508 (0.09%). Out of which incidence of post-operative endophthalmitis that occurred in group A was 0.007% and group B was 0.002%. (p value <0.05). The study also found that complicated extracapsular cataract extraction with intraocular lens implantation had more cases of endophthalmitis compared to phacoemulsification with intraocular lens.
    UNASSIGNED: This study showed that management of posterior capsular rupture through anterior vitrectomy and secondary intraocular lens implantation after two weeks has less chances of postoperative endophthalmitis.
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