有晶状体眼前房型人工晶状体植入矫治高度近视术后波阵面像差分析  

Analyze of the wavefront aberrations in phakic eyes with the anterior chamber phakic intraocular lens for high myopia

作　　者：易全勇[1] 吕帆[1] 王勤美[1] 薛安全[1] 刘利娜[1] 杜显丽[1] 

机构地区：[1]温州医学院眼视光学院,温州325027

出　　处：《中国实用眼科杂志》2007年第9期1008-1011,共4页Chinese Journal of Practical Ophthalmology

基　　金：十五国家攻关项目（2004BA720A16）

摘　　要：目的 探讨2种不同前房型人工晶状体植入矫治高度近视术后波阵面像差及成像质量的差异。方法 使用WASCA波阵面像差仪,在瞳孔直径5 mm时,测量有晶状体眼前房型人工晶状体植入矫治高度近视患者36例63眼（虹膜夹型33眼;房角支撑型30眼）,并选择年龄匹配的近视患者21例30眼,排除眼病疾患作为对照组。获得整体像差、各分阶像差的均方根（RMS）,及Z6-Z14项系数。结果 ①实验组两亚组总高阶像差（RMSh）和3-7阶各阶均方根均比对照组大,指标的差异均有统计学意义（P〈0.05〉。②房角支撑型RMS5、Z13大于虹膜夹型,而Z10、Z12项小于虹膜夹型,差异均有统计学意义。③实验组术后整体高阶像差（RMSh）的均方根与术前等效球镜屈光度均呈显著正相关。（R=0.826,P〈0.05 R=0.754,P〈0.05）。结论 实验组眼的视网膜成像质量较自然晶状体眼差。二种人工晶状体眼高阶像差差异性不大,房角支撑型视网膜成像质量可能优于虹膜夹型。实验组术前近视度数越高的眼,术后视网膜成像质量越差。Objective We compared wavefront aberrations in the eye after the insertion of an anterior chamber phakic intraocular lens for high myopia in order to obtain an objective evaluation of the retinal image of these eyes. Methods The intraocular lenses of iris-claw（verisyse）, and angle-fixated（Phakic-6） were implanted in the patients with high myopia at the numbers of 33and 30 eyes in each group respectively. Aberrations in the eyes were measured in un-dilated pupil using a Hat/mann-Shack-type aberrometer （WASCA）. The same measurements were done in 21 normal phakic eyes in age-matched persons. We obtain the RMS values of the overall waveffont errors （RMSh）,the RMS in each order（3nd to 7nd） and zr-z14values of zemike functions. Results the RMSh and the RMS in each order（3nd to 7nd） was greater than those for the normal controls. The differences in RMS values between the phakic eyes and the normal controls were also statistically significant（p〈0.05）. The RMS5 and Z 13 coefficient in angle-fixated group was higher than iris-claw group （p〈0.05）, and the Z10, Z12 coefficient was lower than iris-claw group. The differences were also statistically significant（p〈0.05）. There was a significant positive correlation between severity of myopia and RMSh of the phakic eyes（R=0.826,P〈0.05R=0.754,P〈0.05）. Conclusion the retinal imageof the eyes of the anterior chamber phakic intraocular lens for high myopia is inferior to normal eyes because of stronger higher-order aberrations, there is no big difference in higher-order aberrations of eyes with 2 types of PIOL. The retinal imageof the eyes with angle-fixated（Phakic-6） can better than the eyes with iris-claw（verisyse）. The higher severity of myopia was, Were the retinal imageof the phakic eyes worse.

关 键 词：波前像差 有晶状体眼 前房型人工晶状体 高度近视 

分 类 号：R778.11[医药卫生—眼科]