海德堡视网膜断层扫描仪测量正常人视盘参数  

Normal optic disc parameter measured with Heidelberg retina tomograph

作　　者：夏翠然[1] 徐亮[1] 

机构地区：[1]首都医科大学附属北京同仁医院

出　　处：《眼科》2003年第5期283-285,共3页Ophthalmology in China

摘　　要：目的 :建立正常人群海德堡视网膜断层扫描仪 (Heidelbergretinatomograph ,HRT)视盘参数的正常值 ,明确哪些因素对正常人HRT视盘参数有影响。方法 :选用 10 2例 (13 2只眼 )正常人 ,用HRT进行视盘扫描 ,视盘参数包括视盘面积、视杯面积和容积、盘沿面积和容积、视杯形态、视杯平均深度和最大深度、杯 /盘面积比、沿 /盘面积比、平均视网膜神经纤维层(retinalnervefiberlayer,RNFL)厚度和横截面积、水平C/D和垂直C/D。计算正常人视盘参数范围 ,用直线回归的方法判断视盘大小和年龄对视盘参数的影响。结果 :正常人左右眼和男女间视盘各参数差异无显著意义 (P >0 0 5)。年龄与RNFL厚度及横截面积呈负相关 ,相关系数分别为 -0 2 3 4和 -0 2 3 5,其余各参数与年龄无关。盘沿容积和视杯最大深度不受视盘大小的影响 ,其余各参数均与视盘大小呈线性相关。结论 :HRT可定量检测正常人视盘参数 ;正常人视盘参数变异很大 ,盘沿容积不受视盘大小的影响 。Objective:To est ablish the range of Heidelberg retina tomograph(HRT)optic disc parameters and define the factors that affect the HRT optic disc parameters in normal subjects.Methods:Optic nerve head parameters of 102 normal subjects(132 eyes) were measured with HRT,including optic disc area,cup area,cup volume,rim area,rim volume,cup shape,mean retinal nerve fiber layer(RNFL)thickness and RNFL cross section area,horizontal C/D,and vertical C/D.The range of the optic disc parameters were defined in normal subjects.The relation between optic disc area and other optic nerve head parameters by liner regression was derived from the normal subjects.Results:Statistically significant difference in optic nerve head parameters was not found between right and left eyes,male and female (P>0 05,t test).Significant negative correlations were found between age and RNFL thickness and retinal nerve fiber layer cross section area(r=-0 234,-0 235,P<0 05).There was no significant correlation between age and other optic nerve head parameters.There were statistically significant liner correlations between optic disc area and other optic nerve head parameter except rim volume and maximum cup depth.Conclusion:In normal subjects,HRT can measure optic disc parameters but which have some differences.Optic area does not affect rim volume.It is a good parameter for differentiating normal eye and early glaucoma.

关 键 词：海德堡视网膜断层扫描仪 视盘 眼 生理学 青光眼 诊断 

分 类 号：R775[医药卫生—眼科]