7种不同设计的人工晶状体边缘散射光的对比观察  

Comparison of Stray-light Effects of 7 Intraocular Lens Edge Designs

作　　者：陈双叶[1] 赵江月[1] 张劲松[1] 

机构地区：[1]中国医科大学附属第四医院眼科,辽宁省高校晶状体学重点实验室,沈阳110005

出　　处：《中国医科大学学报》2010年第3期184-186,共3页Journal of China Medical University

基　　金：辽宁省教育厅科学研究计划项目(2008225005)

摘　　要：目的观察和比较7种不同设计方式的人工晶状体(IOL)光学区边缘不同部位产生散射光的差异。方法用单色激光分别对三片式组和单片式组IOL的上缘和袢与光学区结合部进行不同角度的照射。用数码相机拍摄投射到视网膜平面上的光线图像,比较图像差异。结果在对上缘照射时,两组IOL因边缘形态不同而产生了图像差异;在对袢与光学区结合部照射时,三片式组IOL出现不同于单片式组的线状光影或中心旁致密光斑。结论IOL的边缘形态和三片式IOL袢与光学区结合部的不规则结构可能是引起IOL眼患者术后眩光的重要因素。Objective To compare the stray-light effects caused by different parts of optic edge of 7 intraocular lens （IOL）edge designs. Methods Monochromatic laser beam was used to illuminate the upper edge and complex of three-piece and single-piece IOLs at several angles of incidence. Light images produced in the retinal plane were photographed with a digital camera. The differences in the light images were compared between three-piece and single-piece IOLs. Results There were differences in light images between 2 groups,which may be due to different shapes of edge design when the upper edge of IOL was illuminated. Three-piece IOL exhibited line images or dense patch, which differed with single-piece IOL when the complex of IOL was illuminated. Conclusion Both edge shape and irregular structure in three-piece IOL complex may be important factors for postoperative glare in pseudophakic patients.

关 键 词：IOL 结合部 散射光 术后眩光 

分 类 号：R77[医药卫生—眼科]