Lenstar在可植入性眼内接触镜植入术中的应用

目的 评估Lenstar LS900在可植入性眼内接触镜（ICL）植入术中的应用.方法 回顾性系列病例分析.分析2012年1月-2013年6月在西安市眼科医院接受ICL植入的高度近视患者的临床资料,对术前及术后视力（logMAR）、眼压、角膜内皮细胞计数进行比较,并于术后行UBM检查分析术后ICL拱高、距巩膜突500 μm房角开放距离（AOD 500）,观察虹膜前表面形态.对数据采用配对t检验、重复测量的方差分析、Pearson相关分析进行检验.结果 共27例患者（54眼）纳入该项研究.术后所有患者裸眼视力（logMAR） （0.06±0.05）均较术前（1.22±0.33）有明显的提高（t=25.306,P＜0.01）,与术前最佳矫正视力（logMAR） （0.06±0.05）差异无统计学意义（t=-0.640,P＞0.05）.术后等效球镜度为（-0.21±0.10）D,较术前的（-9.34±1.97）D显著降低（t=34.304,P＜0.01）.术后眼压为（14.93±2.12）mmHg,与术前的（13.82±1.83）mmHg比较差异无统计学意义（t=1.851,P＞0.05）.术后3个月时内皮细胞丢失率为（2.69±2.16）％.术后3个月72％患眼的ICL拱高在理想范围内.所有患者在随访期间均未出现白内障.结论 Lenstar LS900在ICL植入术中的应用是安全、有效的,术后可获得精确的预期屈光度,且术后绝大部分患者ICL拱高均在理想范围内.

The use of Lenstar in the implantation of an intraocular contact lens

Objective To evaluate the use of Lenstar LS900 in the implantation of an intraocular contact lens （Visian Implantable Collamer Lens,ICL）.Methods The clinical data of patients with hypermyopia who underwent ICL implantation from January 2012 to June 2013 were retrospectively analyzed.Comparisons between preoperative and postoperative visual acuity （logMAR）,intraocular pressure,and comeal endothelial cell were measured.Postoperative ICL vault,angle-opening distance 500 μm from the scleral spur （AOD 500）,and the shape of the anterior surface of the iris were evaluated.The measurement data were analyzed with a paired t test,and the correlation between preoperative spherical equivalent and predicted error （PE） was done with Pearson correlation analysis.Results Twenty-seven patients （54 eyes） were included.Postoperative uncorrected visual acuity （UCVA） （0.06±0.05） improved significantly compared with preoperative UCVA （1.22±0.33）（t=25.306,P＜0.01）,and there was no statistically significant difference with preoperative best corrected visual acuity （BCVA） （0.06±0.05） （t =-0.640,P＞0.05）.Postoperative spherical equivalent （SE） error （-0.21±0.1 D） decreased significantly compared with preoperative SE error （-9.34±1.97 D）（t=34.304,P＜0.01）.There was no significant difference between preoperative and postoperative intraocular pressure （13.82±1.83 mmHg and 14.93±2.12 mmHg,respectively） （t=1.851,P＞0.05）.The endothelial cell loss rate at 3 months postoperatively was 2.69％±2.16％.ICL vault for 72％ of the eyes was in the ideal range at 3 months postoperatively.No cataracts formed in any of the patients during the follow-up period.Conclusion The use of Lenstar LS900 in ICL implantation is safe and effective.Postoperative refractive error is accurate,and the ICL vault is in an ideal range in most patients.