囊袋内植入不同襻长人工晶体后偏心的研究  

Measurement of posterior chamber intraocular lens decentration after intraocular implantation

作　　者：谢立信[1] 朱刚[1] 张元宏[1] 曹景[1] 

机构地区：[1]山东省医学科学院眼科研究所,青岛266071

出　　处：《眼视光学杂志》1999年第4期222-223,共2页Chinese Journal of Optometry & Ophthalmology

摘　　要：目的：　测量不同襻长的后房型人工晶体囊袋内植入术后偏心值，确定超声乳化白内障摘除更适合囊袋内植入的人工晶体的襻长。方法：采用通过眼底照相系统摄取人工晶体植入术后１ 周和３ 个月前囊像，应用自制同心圆图表确定角膜和人工晶体光学中心，利用计算机软件测量两点之间的直线距离作为人工晶体偏心值，对６２ 只襻长分别为１２．０ｍｍ 和１２．５ｍｍ 的后房型人工晶体眼行活体测量。结果：襻长１２．０ｍｍ 和１２．５ｍｍ 人工晶体术后１ 周和３ 个月的偏心值分别为０ ．２５ ±０．１５ｍｍ 、０．０３ ±０ ．１３ｍｍ 和０．２０ ±０．０７ｍｍ 、０．２１ ±０ ．１０ｍｍ ．结论：总长度为１２ ．５ｍｍ 的人工晶体囊袋内植入比１２．０ｍｍ 的更稳定。Objective:To determine the appropriate overall length of an IOL for phacoemulsification and intracapsular implantation.Methods:We studied 62 eyes that had undergone phacoemulsification and intracapsular lens implantation with lenses of different overall lengths.Pictures of the anterior capsular section were taken in situ illumination 1 week and 3 months postoperatively.The center point of the cornea and crystalline lens were located with a circle topography and the distance between them was measured online by computer.Results:The mean decentration of 12.0 and 12.5mm IOL was 0.30 (plus/minus) 0.13 and 0.12 (plus/minus) 0.10mm at 1 week and 3 months postoperatively.Conclusion:The 12.5mm IOL was more stable than the 12.0mm IOL after intracapsular implantation.

关 键 词：偏心 超声乳化术 白内障 人工晶体植入术 

分 类 号：R776.1[医药卫生—眼科]