屈光不正和眼轴长度对视盘结构参数的影响  被引量:2

The impact of refractive errors and axial length on the structural parameters of the optic disc

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作  者:刘斌[1] 何明光[1] 黄圣松[1] 殷秋霞[1] 丁小虎[1] 

机构地区:[1]中山大学中山眼科中心眼科学国家重点实验室,广州510060

出  处:《中华实验眼科杂志》2013年第10期953-957,共5页Chinese Journal Of Experimental Ophthalmology

摘  要:背景 目前临床上已广泛使用海德堡视网膜断层扫描仪(HRT)诊断青光眼引起的视神经病变,有研究表明近视会影响HRT视盘参数测量结果,探索不同屈光状态和眼轴长度对HRT视盘结构参数的影响具有重要意义. 目的 评估屈光不正和眼轴长度对视盘结构参数的影响. 方法 采用前瞻性描述性系列病例观察研究方法.选取2006年7月至2011年8月参加“广州双生子研究”的家长作为研究对象.所有受检者行视力、裂隙灯显微镜和90 D前置镜眼底检查,并用电脑自动验光仪采集受检眼的屈光度,采用人工晶状体(IOL) Master测量眼轴长度,视盘结构参数的测量借助HRT-Ⅲ.对所有受检者右眼的自动验光、HRT和IOLMaster测量数据进行分析,采用Pearson直线相关分析法和多重线性回归分析对HRT测量的视盘结构参数与等效球镜度(SE)及眼轴长度间的关系进行评估.结果 共1748名健康成人纳入研究.高度近视组的视盘面积(DA) (P=0.021)、盘沿面积(RA) (P<0.001)、盘沿容积(RV) (P<0.001)、平均视网膜神经纤维层厚度(mRNFLt)(P<0.001)和RNFL横断面积(RNFLcsa)(P<0.001)明显大于正视组,差异均有统计学意义,而视杯面积(CA) (P=0.004)、杯盘面积比(C/DAR) (P<0.001)和视杯容积(CV) (P<0.001)则小于正视组,差异均有统计学意义;在中低度近视组,其RV(P<0.001)、mRNFLt(P<0.001)和RNFLcsa (P<0.001)明显大于正视组,而DA (P=0.038)、CA (P<0.001)、C/DAR(P<0.001)和CV (P=0.001)则明显小于正视组;远视组受检者视盘结构参数与正视组比较差异均无统计学意义(P>0.05).受检者DA值与SE间无明显相关性(r=-0.032,P=0.186),但CA、C/DAR、CV、平均视杯深度(MCD)和最大视杯深度(MxCD)与SE间均呈正相关(r=0.139、0.163、0.130、0.004、0.054,P<0.05),RA、RV、mRNFLt和RNFLcsa则与SE间均�Background Heidelberg Retinal Tomograph (HRT) has been widely used in clinical diagnosis of glaucomatous optic neuropathy,importantly,the measurement results of HRT may be affected by myopia.Therefore,studying the effect of different refractive status and axial length on structural parameters of the optic disc is important.Objective This study was to evaluate the influence of refractive error and axial length to optic nerve head parameter measured by HRT.Methods The parents who participate in Guangzhou Twin Study were enrolled in this investigation from July 2006 to August 2011.The regular eye examinations,including visual acuity,slit lamp,fundus,auto-refraction,HRT-Ⅲ and intraocular lens (IOL) Master,were performed on all the subjects.Thc data from right eyes of subjects were collected and analyzed.The linear correlation analysis and multiple linear regression analysis were applied to analyze the correlation between HRT optic papilla configuration parameter and equivalent sphere and ocular axis length.Results A pilot prospective series cases observational study was designed.1748subjects were enrolled in this study.The disc area (DA) (P=0.021),rim area (RA) (P〈0.001),rim volume (RV) (P〈0.001),mean retinal nerve fiber layer thickness (mRNFLt) (P〈0.001) and retinal nerve fiber layer cross section area (RNFLcsa) in the high myopia were greater than those of the emmetropic group,with significant difference between the two groups (P〈0.001).However,the cup area (CA),cup/disk area ratio (C/DAR) and cup volume (CV) were less in the high myopic group than those of the emmetropic group (P=0.004,P〈0.001 and P〈O.001),respectively.In the mild-moderatc myopic group,the RV,mRNFLt and RNFLcsa were greater than those of the emmetropic group (all of the P value less than 0.001),but the numbers of DA,CA,C/DAR,and CV were less than those of the emmetropic group,the differences were significant and their P valuables were 0.038,〈 0.001,〈0.001 and 0.0

关 键 词:体层断层摄影术 视盘 屈光不正 眼轴长度 海德堡视网膜断层扫描仪Ⅲ 

分 类 号:R778[医药卫生—眼科]

 

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