Ozmen Ahmet T, Dogru Murat, Erturk Haluk, Ozcetin Hikmet
Department of Ophthalmology, Uludag University, Faculty of Medicine, Bursa, Turkey.
Ophthalmic Surg Lasers. 2002 Sep-Oct;33(5):394-9.
To evaluate the visual outcome and complications of transsclerally fixated intraocular lenses (IOLs) in children without sufficient capsular support.
Twenty-one aphakic eyes of 18 children (13 boys and 5 girls) who underwent secondary transscleral IOL fixation were evaluated retrospectively. Ten eyes with aphakia after infantile cataract surgery, 7 aphakic eyes following traumatic cataract surgery, and 4 eyes after ectopia lentis surgery received secondary transscleral posterior chamber IOL fixation because of by insufficient posterior capsular support. Visual outcomes and postoperative complications were recorded.
After a mean follow up of 22.5 months (range, 12 to 36 months), visual improvement of more than 2 Snellen lines was observed in 9 eyes (42.8 %). Preoperative visual acuity could not be assessed in 7 eyes (33.3%) because of associated neurological and developmental disorders. One eye (4.7%) lost 2 Snellen lines of the best corrected visual acuity because of concurrent endophthalmitis and retinal detachment. Pupillary distortion, transient pupillary membrane, pupillary capture as well as strabismus and anterior uveitis, were the most common complications. Endophthalmitis and retinal detachment were the most severe postoperative complications.
Transsclerally fixated IOL implantation may be visually rewarding in well selected pediatric cases, but the potential complications would suggest extreme caution in its consideration. Until long-term studies are published, it is difficult to recommend implantation unless it is deemed impossible to provide adequate rehabilitation by other means such as contact lenses or aphakic spectacles.
评估在没有足够囊膜支撑的儿童中,经巩膜固定人工晶状体(IOL)的视觉效果和并发症。
回顾性评估了18例儿童(13例男孩和5例女孩)的21只无晶状体眼,这些患儿接受了二期经巩膜IOL固定术。10只眼在婴儿期白内障手术后出现无晶状体,7只眼在外伤性白内障手术后出现无晶状体,4只眼在晶状体异位手术后出现无晶状体,由于后囊膜支撑不足而接受了二期经巩膜后房型IOL固定术。记录视觉效果和术后并发症。
平均随访22.5个月(范围12至36个月)后,9只眼(42.8%)的视力提高超过2行Snellen视力表。7只眼(33.3%)由于合并神经和发育障碍而无法评估术前视力。1只眼(4.7%)因并发眼内炎和视网膜脱离而最佳矫正视力下降2行Snellen视力表。瞳孔变形、短暂性瞳孔膜、瞳孔捕获以及斜视和前葡萄膜炎是最常见的并发症。眼内炎和视网膜脱离是最严重的术后并发症。
经巩膜固定IOL植入术在精心挑选的儿科病例中可能在视觉上有益,但潜在的并发症提示在考虑该手术时应极其谨慎。在长期研究发表之前,很难推荐植入该人工晶状体,除非认为通过其他手段如隐形眼镜或无晶状体眼镜无法提供充分的康复治疗。