Asadi Reza, Kheirkhah Ahmad
Department of Ophthalmology, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
Ophthalmology. 2008 Jan;115(1):67-72. doi: 10.1016/j.ophtha.2007.02.018. Epub 2007 May 3.
To evaluate the long-term results of transsclerally fixated posterior chamber intraocular lenses (SF-PCIOLs) in children without adequate capsular support.
Noncomparative interventional case series.
Twenty-five eyes of 23 children who underwent primary (6 eyes) or secondary (19 eyes) implantation of SF-PCIOLs. The primary cases included those undergoing surgery for lens subluxation due to Marfan's syndrome, and secondary cases included those after surgery for congenital cataract (3 eyes) or traumatic cataract (16 eyes). All eyes lacked adequate capsular support and, in secondary cases, manifested contact lens intolerance.
Ab externo transscleral fixation of PCIOLs.
Visual acuity (VA), IOL position, and postoperative complications.
The mean age of patients at the time of SF-PCIOL implantation was 79+/-20.2 months (range, 33-120). The mean duration of follow-up after surgery was 81.1+/-46.2 months (range, 12-144). Best-corrected VA improved postoperatively in 12 eyes (48%) by >1 Snellen line. The main cause of reduced vision was corneal and retinal pathologies and amblyopia. Complications included transient intraocular hemorrhage in 13 eyes (52%), transient choroidal effusion in 2 eyes (8%), late endophthalmitis in 1 eye (4%), retinal detachment in 1 eye (4%), and late IOL dislocation due to breakage of polypropylene sutures after 7 to 10 years in 6 eyes (24%).
Scleral fixation of PCIOLs can be visually rewarding in selected cases, but there is a high rate of complications during a long-term follow-up.
评估经巩膜固定后房型人工晶状体(SF-PCIOLs)在无足够囊袋支撑的儿童中的长期效果。
非对比性干预病例系列。
23例儿童的25只眼接受了SF-PCIOLs的一期(6只眼)或二期(19只眼)植入。一期病例包括因马凡综合征行晶状体半脱位手术的患儿,二期病例包括先天性白内障手术后(3只眼)或外伤性白内障手术后(16只眼)的患儿。所有眼均缺乏足够的囊袋支撑,二期病例表现为对隐形眼镜不耐受。
经巩膜外固定PCIOLs。
视力(VA)、人工晶状体位置及术后并发症。
植入SF-PCIOLs时患者的平均年龄为79±20.2个月(范围33 - 120个月)。术后平均随访时间为81.1±46.2个月(范围12 - 144个月)。术后最佳矫正视力提高超过1行Snellen视力表的有12只眼(48%)。视力下降的主要原因是角膜和视网膜病变及弱视。并发症包括13只眼(52%)出现短暂性眼内出血,2只眼(8%)出现短暂性脉络膜渗漏,1只眼(4%)发生晚期眼内炎,1只眼(4%)发生视网膜脱离,6只眼(24%)在7至10年后因聚丙烯缝线断裂发生晚期人工晶状体脱位。
在特定病例中,巩膜固定PCIOLs可提高视力,但长期随访中并发症发生率较高。