虹膜夹型有晶状体眼人工晶状体植入术的超声生物显微镜初步观察  

Ultrasound biomicroscopy of iris-claw phaldc intraocular lens implantation

作　　者：俞阿勇[1] 林振德[1] 陈秀琦[1] 蔡小于[1] 罗书科[1] 李永华[1] 

机构地区：[1]中山大学中山眼科中心,广州510060

出　　处：《中国实用眼科杂志》2007年第5期483-486,共4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）在国人眼前节的位置和形态特征。方法对我院2005年5月至12月植入ICPIOL（Verisyse,美国AMO公司）的5例（10只眼）高度近视患者分别在术前、术后1～3个月采用超声生物显微镜（UBM）活体观察ICPIOL在眼前节的位置和形态特征。结果手术前后等效球镜分别为（-16.29±5.21）D、（-1.11±0.51）D,差异有显著统计学意义（t=-9.87,P〈0.001）。术前角膜内皮细胞层到晶状体前表面的距离（ACD）为（3.05±0.11）mm,术后ICPIOL前表面到角膜内皮细胞层（PACD）（1.99±0.11）mm,后表面到晶状体前表面（0.66±0.06）mm,光学面后缘上、下方到虹膜前表面分别为（0.59±0.23）mm,（0.43±0.22）mm,襻的最远点到前房角的最短距离（1.45±0.12）mm。部分襻陷入虹膜,虹膜前、后表面形态无明显异常。多元线性回归分析示PACD=0.68＋0.51ACD＋0.02ICPIOL度数（F=16.09,P=0.002）。结论ICPIOL在国人眼内位置稳定,不接触角膜内皮细胞、前房角、晶状体,除了部分襻内陷入虹膜,未见虹膜前、后表面形态明显改变,是一种矫治高度近视眼的安全方法。Objective To study in situ the intraocular position of the iris-claw phakic intraocular lens （ICPIOL） in myopic eyes using ultrasound biomicroscopy （UBM）. Methods Echograms of the anterior segment were taken preoperatively and 1-3 months postoperatively in 10 eyes implanted with the Verisys ICPIOL （AMO）. The echograms were assessed for the effect of the ICPIOL on iris tissue. Results Spherical equivalent reduced significantly from preoperatively （-16.29 ± 5.21 D） to postoperatively （-1.11 ± 0.51 D, t=-9.87, P〈0.001）. The distance between the corneal endothelium and the lens （ACD） was （3.05 ± 0. 1 1） mm preoperatively, between the ICPIOL and the corneal endothelium （PACD） （1.99 ± 0.11） mm, between the lens and the posterior surface of the ICPIOL, 0.66 ± 0.06 mm, between the superior and the iris, （0.59 ± 0.23） mm, between the inferior optic edge and the iris, （0.43 ± 0.22） mm, between the ICPIOL haptics and the angle of anterior chamber, （1.45 ± 0.12） mm. The indentation of iris tissue by the ICPIOL haptics without distortion of posterior curvature of iris was observed. Linear regression analysis suggested PACD=0.68±0.51 ACD±0.02 ICPIOL （F=16.09, P=0.002）. Conclusion Adequate space is maintained between the Verisyse myopic ICPIOL and the corneal endothelium, angle, and crystalline lens. Haptic indentation of the iris without distortion of iris curvature is noted, The ICPIOL implanted in phakic eyes is a safe alternative for treatment of high myopia.

关 键 词：晶状体 人工 晶状体眼 手术 近视 超声生物显微镜 

分 类 号：R776.1[医药卫生—眼科]