人工晶体取出的原因分析

回顾性分析２５例人工晶体取出的原因。其中前房型４例，后房型２１例。前房型和后房型人工晶体从植入至取出的平均间隔时间分别为２３．５和７．１个月。前房型取出的原因为ＵＧＨ综合征３例和人工晶体大泡性角膜病变１例；后房型取出的原因有人工晶体脱位或半脱位１２例，人工晶体大泡性角膜病变４例，人工晶体视网膜脱离３例和眼内炎２例。手术方法：直接取出或合并三切口闭台式玻璃体切除，穿透性角膜移植，玻璃体视网膜手术，前段玻璃体切除和瞳孔膜切除。术后绝大多数眼的视力提高或保持不变。

Causes of intraocular lens removal

The causes of 25 cases of intraocular lens(IOL)explantation were reviewed retrospec-tively.Of the IOLs removed,4 were anterior chamber(AC)IOLs and 21 posterior chamber(PC)IOLs.The average interval between cataract extraction with lens implantation and the IOL explantation in AC IOLs was 23.5 months and in PC IOLs 7.1 months.The causes of AC IOL removal were pseu-dophakic bullous keratopathy in 1 and uveitis-glaucoma-hyphema syndrome in 3 cases.The causes of PC IOL explantation included dislocation or subluxation in 12,pseudophakic bullous keratopathy in 4,pseu-dophakic retinal detachment in 3 and endophthalmitis in 2 cases.Surgical procedures included simple IOL removal or combined with 3 port-vitrectomy,penetrating keratoplasty,vitreoretinal microsurgery,anterior vitrectomy and pupillary membranectomy.Post-operatively,the visual outcome in most of the eyes showed improvement or stabilization.