Verbruggen Kristien H M, Rozema Jos J, Gobin Laure, Coeckelbergh Tanja, De Groot Veva, Tassignon Marie-José
Department of Ophthalmology, University Hospital, Antwerp, Belgium.
J Cataract Refract Surg. 2007 Jul;33(7):1267-72. doi: 10.1016/j.jcrs.2007.03.022.
To examine the centration and visual outcomes after cataract surgery using the bag-in-the-lens (BIL) implantation technique.
University Hospital Antwerp, Department of Ophthalmology, Edegem, Belgium.
This study comprised 180 eyes of 125 patients who had cataract surgery with implantation of the BIL intraocular lens (IOL) between March 2002 and September 2005. Postoperative data at 5 weeks, 6 months, and 1 year were evaluated. The geometric center of the IOL, measured on a red reflex slitlamp photograph, was compared with the geometric center of the pupil and the limbus.
The mean decentration compared with the limbus was 0.304 mm+/-0.17 (SD) at a mean angle of -24.9+/-113.3 degrees. Compared with the dilated pupil, the mean deviation was 0.256+/-0.15 mm at a mean angle of -5.2+/-119.0 degrees. The amount of decentration was stable during the postoperative follow-up period. There was no correlation between the amount of decentration and the visual outcomes (pupil: r=-0.07, P=.494; limbus: r=0.11, P=.304).
Surgeon-controlled BIL centration was predictable 5 weeks and unchanged 6 months and 1 year postoperatively. It can therefore be concluded that capsular bag healing has no influence on BIL IOL centration over time.
使用晶状体囊袋内植入术（BIL）检查白内障手术后的晶状体中心定位及视觉效果。
比利时埃代海姆安特卫普大学医院眼科。
本研究纳入了2002年3月至2005年9月期间接受白内障手术并植入BIL人工晶状体（IOL）的125例患者的180只眼。评估了术后5周、6个月和1年的数据。在红色反光裂隙灯照片上测量的IOL几何中心与瞳孔和角膜缘的几何中心进行比较。
与角膜缘相比，平均偏心距为0.304 mm±0.17（标准差），平均角度为-24.9±113.3度。与散瞳后的瞳孔相比，平均偏差为0.256±0.15 mm，平均角度为-5.2±119.0度。在术后随访期间，偏心量保持稳定。偏心量与视觉效果之间无相关性（瞳孔：r = -0.07，P = 0.494；角膜缘：r = 0.11，P = 0.304）。
外科医生控制的BIL中心定位在术后5周是可预测的，术后6个月和1年保持不变。因此可以得出结论，随着时间的推移，晶状体囊袋愈合对BIL IOL的中心定位没有影响。
