健康青少年视网膜厚度的定量化测量  

Measurement of retinal thickness in healthy teenagers at the posterior pole

作　　者：李乐平[1] 金婉卿[1] 

机构地区：[1]温州医学院附属眼视光医院,浙江温州325027

出　　处：《眼视光学杂志》2006年第2期115-116,共2页Chinese Journal of Optometry & Ophthalmology

基　　金：温州市科技计划项目(Y2003A130)

摘　　要：目的旨在建立温州地区健康青少年视网膜厚度的正常数值范围,并同国内外相关研究进行分析比较,以指导临床实践。方法使用视网膜厚度分析仪(retinal thick-ness analyzer,RTA)的视网膜厚度模式对健康青少年120只眼的后极部(21°×21°)视网膜厚度进行测量。对5位受检者进行可重复性评估。结果后极部平均视网膜厚度为(172±16)μm,中心凹平均视网膜厚度为(148±18)μm。同一天测量得到同一被测者检查可重复性的误差为±5%,相当于±9μm。结论后极部视网膜厚度地形图与解剖学结构相吻合。视网膜厚度最大值出现在中央凹旁区,并从视盘到中央凹的上下方呈“C”字型变化。采用RTA进行视网膜厚度测量的可重复性好,证明该设备对于黄斑疾病的视网膜厚度改变的检测有价值。这种检查对于早期、准确诊断和监测黄斑水肿以及其他视网膜疾病,评价临床的疗效有较大意义。本结果与以往活体和组织学研究的成人后极部视网膜厚度的结果相符合,提示人眼视网膜厚度发育较早完成。Objective The aim of this study is to establish the normal retinal thickness of teenagers in the posterior pole and fovea. Methods An RTA was used to measure retinal thickness at the posterior pole （21°× 21°） in 60 normal teenagers （120 eyes）, 9 - 14 years of age. The obtained images were processed by a computer to yield the retinal thickness value at this locaton. Results The mean retinal thickness at the posterior pole of normal subjects was （172± 16）μm. The mean retinal thickness at the fovea of normal subjects was （148 ± 18）μm. There was no significant difference within this age range or between genders in this group of teenagers. Conclusion The thickness map for the raina at the posterior pole across the macula in normal subjects is ＂U＂ shaped, which is well matched with the anatomy of the human retina. The mean retinal thickness at the posterior pole and fovea of normal subjects in this study is consistent with past studies. It indicates that developmerit of human retinal thickness is completed at an early age.

关 键 词：视网膜厚度 定量化测量 视网膜厚度分析仪 

分 类 号：R77[医药卫生—眼科]