From the Raghudeep Eye Hospital, Iladevi Cataract & IOL Research Centre, Ahmedabad, Gujarat. India.
From the Raghudeep Eye Hospital, Iladevi Cataract & IOL Research Centre, Ahmedabad, Gujarat. India..
Am J Ophthalmol. 2024 Dec;268:136-142. doi: 10.1016/j.ajo.2024.07.006. Epub 2024 Jul 14.
Evaluate long-term outcomes following Cionni modified capsule tension ring (MCTR) and in-the-bag intraocular lens (IOL) implantation in subluxated lenses.
Retrospective case series.
Forty-one eyes of 31 patients from Raghudeep Eye Hospital, India, with subluxated lenses who had completed a minimum of 5 years' postoperative follow-up were included. Lens extraction, capsular bag fixation with MCTR using 9-0 polypropylene suture, and in-the-bag IOL implantation were performed in all eyes. Corrected distance visual acuity (CDVA), IOL centration, posterior capsule opacification, glaucoma, and retinal complications were documented at final follow-up.
The mean age of the cohort was 20.48 ± 16.46 (SD) years. Twenty-four eyes (58%) were below 15 years of age at the time of surgery. Marfan syndrome accounted for 37% cases. Mean follow-up was 9.89 ± 3.81 (SD) years. Thirty-two eyes (74%) had a CDVA of ≥0.3 logMAR at final follow-up. IOL decentration was noted in 7 eyes (17%), requiring a secondary surgery. The mean duration from primary surgery to resurgery was 8.79 years. Seventeen eyes (41%) required a laser capsulotomy, 88% of which were pediatric eyes. Retinal detachment occurred in 4 eyes (10%), 3 of which had Marfan syndrome.
Capsular bag fixation with an MCTR using 9-0 polypropylene and in-the-bag IOL implantation had good long-term visual outcomes with an acceptable rate of serious postoperative complications in eyes with subluxated lenses. This approach allows preservation of the natural compartments of the eye and placement of an IOL in its most physiological position. However, considering a 17% rate of IOL decentration requiring surgical intervention, long-term stability with nonbiodegradable suture materials such as polytetrafluoroethylene as well as decentration rates following sutured or sutureless scleral fixation should be compared.
评估 Cionni 改良囊袋张力环(MCTR)和囊袋内人工晶状体(IOL)植入治疗半脱位晶状体的长期疗效。
回顾性病例系列。
纳入印度 Raghudeep 眼科医院的 31 名患者的 41 只半脱位晶状体眼,所有患者均完成了至少 5 年的术后随访。所有患者均行晶状体切除术、MCTR 采用 9-0 聚丙烯缝线固定囊袋、囊袋内 IOL 植入术。末次随访时记录最佳矫正远视力(BCVA)、IOL 中心位置、后囊膜混浊、青光眼和视网膜并发症。
该队列的平均年龄为 20.48 ± 16.46(SD)岁。24 只眼(58%)在手术时年龄小于 15 岁。马凡综合征占 37%。平均随访时间为 9.89 ± 3.81(SD)年。末次随访时 32 只眼(74%)BCVA≥0.3 logMAR。7 只眼(17%)存在 IOL 偏心,需要二次手术。初次手术后至二次手术的平均时间为 8.79 年。17 只眼(41%)需要行激光后囊切开术,其中 88%为儿童眼。4 只眼(10%)发生视网膜脱离,其中 3 只眼患有马凡综合征。
采用 9-0 聚丙烯缝线的 MCTR 固定囊袋和囊袋内 IOL 植入治疗半脱位晶状体具有良好的长期视觉效果,严重术后并发症发生率可接受。该方法可保留眼的自然解剖结构,并将 IOL 置于最生理的位置。然而,考虑到 17%的 IOL 偏心需要手术干预,应比较非生物降解缝线材料(如聚四氟乙烯)的长期稳定性以及缝线或无缝线巩膜固定后的偏心率。