视网膜断层扫描仪测量广西汉族正常人群视盘参数的研究

目的了解本地区汉族正常人群视盘参数的正常值。方法将三代居住广西隆林县无血缘关系的120例正常汉族成年人纳入研究对象，运用海德堡视网膜断层扫描仪（Heidelberg retina tomograph-Ⅱ，HRT-Ⅱ）分别检测不同年龄段汉族人群视乳头地形图总体参数。结果正常汉族人视盘参数正常值：视盘面积（DA）为（2．2165±0．4266）mm^2，视杯面积（CA）为（0．4816±0．2979）mm^2，盘沿面积（RA）为（1．7311±0．3217）mm^2，视杯／视盘面积比值（C／DAR）为（0．2074±0．1092），盘沿／视盘面积比值（R／DAR）为（0．7923±0．1091），视杯容积（CV）为（0．1076）mm^3，盘沿容积（RV）为（0．5196±0．1519）mm^3，平均视杯深度（MCD）为（0．2055±0．0798）mm，最大视杯深度（MxCD）为（0．6039±0．1949）mm，视乳头轮廓线高度变化值（HVC）为（0．4513±0．1639）mm，视杯形态测量（CSM）为（-0．2155±0．0617）mm，平均视网膜神经纤维层厚度（mRN-FLT）为（0．3059±0．0845）mm，视网膜神经纤维层截面面积（RNFLA）为（1．5785±0．3830）mm^2。按年龄分成4组，正常汉族人mRNFLT、RNFLA在49岁以下与50岁以上比较差异有统计学极显著意义（P〈0．01），而49岁以下各组之间比较差异无统计学意义（P〉0．05）。性别间各参数比较差异无统计学意义（P〉0．05）。眼别间比较差异元统计学意义（P〉0．05）。汉族C／DAR比值双眼差值范围为0．048～0．112。RV和HVC两个参数不受视盘大小影响。结论HRT-Ⅱ可定量检测广西汉族正常人视盘参数，且不同年龄视盘参数的均值与性别及眼别无关，RV和HVC可做为一个评价指标。

Study of Heidelberg retinal tomography in the detection of optic disc parameters in Han nationality in Guangxi

Objective To study the optic disc parameters of normal people in Han nationality in Guangxi. Methods One hundred and twenty blood-unrelated nomoral volunteers living in Lonlin region of Guangxi were involved in the study and divided into 4 groups aecoding to their ages. Heidelberg Retina Tomograph（HRT） was used to obtain the optic disc parameters. Results The parameters of ONH in normal eyes are as follows： DA （2. 2165 ± 0. 4266） mm^2, CA （ 0. 4816 ± 0. 2979 ） mm^2, RA （ 1. 7311 ± 0. 3217 ） mm^2, C/DAR （ 0. 2074 ± 0. 1092 ）, R/DAR （0.7923 ±0. 1091）,CV（0. 1076）mm^3,RV（0. 5196 ±0. 1519） mm^3,MCD（0. 2055 ± 0. 0798）mm,MxCD（0. 6039 ± 0. 1949）mm,HVC（0. 4513 ±0. 1639） mm,CSM（ -0. 2155 ± 0. 0617） mm,mRNFLT（0. 3059 ± 0. 0845） mm,RNFLA（ 1. 5785 ±0. 3830）mm^2. The parameter of mRNFLT and RNFLA were significant difference between the group of more than 50 years and other groups of less than 49 years in Han nationality. There was not significant diference between right and left eyes and between different genders in all parameters. The binocular difference value of C/DAR was 0. 048±0. 112 in Hart nationality. The parameters of RV and HVC were unaffected by disc area. Conclusion HRT can be used to measure optic disc parameters of normal person in Zhuang nationality. There were not differences in between diferent genders and two eyes. RV and HVC appears to be a good parameter for evaluating.