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.
出处
《中国医科大学学报》
CAS
CSCD
北大核心
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)
关键词
IOL
结合部
散射光
术后眩光
intraocular len
complex
stray-light
postoperative glare
