Buckley E G
Duke University Eye Center, Durham, North Carolina 27707, USA.
J AAPOS. 1999 Oct;3(5):289-94. doi: 10.1016/s1091-8531(99)70025-x.
Optical rehabilitation of unilateral aphakia in eyes with no capsular support is problematic in pediatric patients who cannot tolerate contact lenses. Possible options include a unilateral aphakic spectacle, an anterior chamber intraocular lens (IOL), or a scleral fixated posterior chamber IOL. Of these choices the posterior chamber IOL is the most physiologic. Experience in adults shows increased complications with this technique.
The objective of this study was to report the short-term results and complications of unilateral scleral fixated posterior chamber IOLs in the pediatric population.
All patients with scleral fixated lenses younger than 16 years were retrospectively reviewed. Nine patients aged 12 months to 15 years underwent unilateral scleral fixated posterior chamber lens implantation using buried polypropylene fixation sutures. Follow-up averaged 24 months.
Postoperative visual acuity improved in all patients. Refractive goals were achieved in all but 1 patient. Complications included elevated intraocular pressure controlled with medications (1 patient), anterior uveitis (1 patient), and mild IOL decentration (1 patient).
Although short-term visual results appear encouraging, this procedure is technically more difficult and has an increased incidence of postoperative complications when compared with secondary sulcus-fixated IOLs supported by capsular remnants. Caution should be exercised when recommending this procedure for pediatric patients because long-term risks are unknown.
对于无法耐受隐形眼镜的小儿患者,无晶状体囊膜支撑眼的单侧无晶状体光学矫正存在问题。可能的选择包括单侧无晶状体眼镜、前房型人工晶状体(IOL)或巩膜固定后房型IOL。在这些选择中,后房型IOL最为符合生理情况。成人的经验显示该技术并发症增多。
本研究的目的是报告小儿患者单侧巩膜固定后房型IOL的短期结果和并发症。
对所有年龄小于16岁的巩膜固定人工晶状体患者进行回顾性研究。9例年龄在12个月至15岁的患者采用埋入式聚丙烯固定缝线进行单侧巩膜固定后房型人工晶状体植入。平均随访24个月。
所有患者术后视力均有提高。除1例患者外,均达到屈光目标。并发症包括药物控制的眼压升高(1例患者)、前葡萄膜炎(1例患者)和轻度人工晶状体偏心(1例患者)。
尽管短期视力结果令人鼓舞,但与由晶状体囊膜残余支撑的二期睫状沟固定人工晶状体相比,该手术技术上更困难,术后并发症发生率更高。由于长期风险未知,在为小儿患者推荐该手术时应谨慎。