Department of Ophthalmology, Social Insurance Chukyo Hospital, 1-1-10 Sanjo, Minami-ku, Nagoya, Aichi, Japan.
J Refract Surg. 2010 May;26(5):327-32. doi: 10.3928/1081597X-20090617-11. Epub 2010 May 19.
To evaluate the changes in vault over time after Implantable Collamer Lens (ICL; STAAR Surgical) posterior chamber phakic intraocular lens implantation.
A total of 36 eyes of 19 patients who underwent ICL implantation were enrolled in the study. Vault (the distance between the back surface of the ICL and the front surface of the crystalline lens) was measured postoperatively using anterior optical coherence tomography. Patients were divided into three groups based on vault (low < or =0.25 mm, moderate >0.25 to <0.75 mm, or high > or =0.75 mm).
Mean vault at 1 year postoperative was 0.53+/-0.25 mm. The percentages of eyes in the low, moderate, and high vault groups were 13.9%, 72.2%, and 13.9%, respectively. A significant decrease in vault was noted up to 1 month, after which the value stabilized (P<.0001). High vault showed a gradual decrease up to 3 months (P<.0001), after which the value stabilized. A statistically significant correlation was present between the change noted for vault values during the 1-year follow-up period and those measured for the initial vault on postoperative day 1 (P<.0001, r(2)=0.6393).
Although values for low and moderate vault exhibited little change after ICL implantation, high vault tended to decrease over time and became stable at 3 months after surgery.
评估后房有晶状体眼人工晶状体（ICL；STAAR Surgical）植入术后拱高随时间的变化。
共纳入 19 例（36 只眼）接受 ICL 植入术的患者。术后使用前节光学相干断层扫描测量拱高（ICL 后表面与晶状体前表面之间的距离）。根据拱高将患者分为 3 组（低<或=0.25mm，中>0.25 至<0.75mm，或高>或=0.75mm）。
术后 1 年平均拱高为 0.53+/-0.25mm。低、中、高拱高组的眼数百分比分别为 13.9%、72.2%和 13.9%。术后 1 个月内拱高显著下降，此后趋于稳定（P<.0001）。高拱高组直至术后 3 个月时仍持续下降（P<.0001），此后趋于稳定。术后 1 年随访期间拱高值的变化与术后第 1 天初始拱高值之间存在统计学显著相关性（P<.0001，r(2)=0.6393）。
尽管低、中拱高值在 ICL 植入后变化不大，但高拱高值随时间推移有下降趋势，术后 3 个月时趋于稳定。
