虹膜夹型有晶状体眼人工晶状体植入术对高度近视眼对比敏感度的影响  

Effects of iris-claw phakic intraocular lens implantation on contrast sensitivity in high myopia

作　　者：俞阿勇[1] 林振德[2] 王勤美[1] 杜显丽[1] 罗书科[2] 郑丹莹[2] 

机构地区：[1]温州医学院附属眼视光医院,温州325000 [2]中山大学中山眼科中心

出　　处：《中国实用眼科杂志》2007年第6期577-581,共5页Chinese Journal of Practical Ophthalmology

摘　　要：目的 研究虹膜夹型有晶状体眼人工晶状体（iris-claw phakic intraocular lens，ICPIOL）植人术后对比敏感度（contrastsensitivity，CS）的变化。方法 2005年5月至12月于温州医学院附属眼视光医院和中山大学中山眼科中心接受ICPIOL（Verisyse，美国AMO公司）植入术的高度近视眼患者12例（23只眼），分别在术前、术后1、3、6个月采用CS测试灯箱（CSV-1000型，美国Vector Vision公司）检查暗视状态下无／有眩光时的对比敏感度函数（contrast sensitivity function，CSF）。结果 术后1、3、6个月等效球镜度数分别为（-0．60±0．77）D，（-0．48±0．77）D，（-0．34±0．53）D，与术前（-15．53D±3．65D）差异均有显著统计学意义（P均〈0．001），最佳矫正视力（IogMAR）分别为0．064-0．12，0．02±0．09，-0．003±0．08，与术前（0．21±0．12）差异均有显著统计学意义（P均〈0．001）。术后各空间频率的CS与术前比较有增高趋势。术后3个月6、12、18周／度的CS在无眩光时和有眩光时均明显提高（P均〈0．01），开始接近正常范围。术后3、6个月在各空间频率上CS差异均无统计学意义（P均〉0．05）。结论 ICPIOL植入术矫治高度近视眼可以使CSF恢复到接近正常范围，显著改善视功能，是一种适用于高度乃至超高度近视眼的可供选择的屈光手术。Objective To determine the effects of the iris-claw phakic intraocular lens （ICPIOL） implantation on contrast sensitivity （CS） in high myopia. Methods Twenty-three eyes in 12 myopic patients implanted with ICPIOL （Verisys, AMO, U.S.A.） at the Affiliated Eye Hospital of Wenzhou Medical College, and Zhongshan Ophthalmic Center, Sun Yet-san University between May and December, 2005 were enrolled in this study. Mesopic CS was measured with and without glare preoperatively and 1, 3, 6 months postoperatively. Results At 1, 3, 6 months postoperatively, the mean spherical equivalent was （-0.60 ± 0.77）D, （-0.48 ±0.77） D, （-0.34 ± 0.53）D, respectively, which reduced significantly from baseline （-15.53D ± 3.65 D, P〈0.001 ）; The best corrected visual acuity （logMAR） was 0.06 ± 0.12, 0.02± 0.09, -0.003 ± 0.08, respectively, which improved significantly from preoperatively （0.21 ± 0.12, P〈0.001）. CS at all frequencies revealed a tendency toward improvement after surgery, which was significantly increased and approached to normal range at 3-month postopera- tively at frequency of 3, 12, 18c/deg without glare and with glare （P〈0.01）. No significant difference in CS was found between 3-month and 6-month postoperatively （P〉0.05）. Conclusion ICPIOL implantation can improve contrast sensitivity function and seems to be a promising altemative for treatment of high myopia.

关 键 词：晶状体 人工 晶状体眼 手术 近视 对比敏感度 

分 类 号：R776.1[医药卫生—眼科]