Aasuri M K, Venkata N, Preetam P, Rao N T
Bausch & Lomb Contact Lens Center, L.V. Prasad Eye Institute, Hyderabad, India.
CLAO J. 1999 Oct;25(4):209-12.
To evaluate the performance of silicone elastomer lenses in pediatric eyes with aphakia.
We retrospectively studied pediatric aphakic eyes fit with Silsoft lenses (elastofilcon A, Bausch & Lomb) at the L.V. Prasad Eye Institute, India.
Seventy-four children (106 eyes) with a median age of 9.0 months (range: 1 month to 12 years) were included in the study. Congenital cataract was the pre-existing pathology in 84 eyes. Lenses were fit between 1 week and 5 years following surgical intervention (median: 25 days). The most frequently used base curves were 7.5 mm (n=46 eyes) and 7.7 mm (n=39 eyes); lens diameter was 11.3 mm (n=103 eyes). Satisfactory fit was achieved in 86 eyes (81.1%). One-week extended wear was the most commonly recommended mode of wear (n=95 eyes). Lenses (n=118) were replaced for change of power, lens loss, and deposits or damage. Lenses were worn for > or =6 months in 68 eyes (64.2%). Twenty-three contact lens related adverse events occurred, all of which resolved uneventfully. On survival analysis, the probability of not having a lens related complication was 75.5% (95% CI; 61.5-89.5) at 24 months.
In the management of pediatric aphakia, Silsoft lenses are safe, provide satisfactory optical correction, and are easy to handle. Limited availability and the financial costs associated with frequent lens replacement are limitations in our socioeconomic circumstances.
评估硅酮弹性体镜片在小儿无晶状体眼中的性能。
我们回顾性研究了印度L.V.普拉萨德眼科研究所为小儿无晶状体眼配戴Silsoft镜片(elastofilcon A,博士伦公司)的情况。
74名儿童(106只眼)纳入研究,中位年龄9.0个月(范围:1个月至12岁)。84只眼中存在的原有病变为先天性白内障。镜片在手术干预后1周-5年配戴(中位时间:25天)。最常使用的基弧为7.5mm(46只眼)和7.7mm(39只眼);镜片直径为11.3mm(103只眼)。86只眼(81.1%)获得满意的适配。最常推荐的配戴方式为连续配戴1周(95只眼)。因度数变化、镜片丢失、沉积物或损坏而更换镜片118次。68只眼(64.2%)镜片配戴时间≥6个月。发生23次与隐形眼镜相关的不良事件,所有事件均顺利解决。生存分析显示,24个月时无镜片相关并发症的概率为75.5%(95%CI;61.5-89.5)。
在小儿无晶状体眼的处理中,Silsoft镜片安全,能提供满意的光学矫正,且易于操作。在我们的社会经济环境中,有限的可获得性以及频繁更换镜片的经济成本是其局限性。