国产视觉电生理检测系统正常值范围的研究  

Normative values research of domestic visual electrophysiology detection system

作　　者：张磊[1] 夏峰[1] 郭群[1] 李莉[1] 张作明[1] 

机构地区：[1]第四军医大学航空航天医学系航临教研室,西安710033

出　　处：《眼科研究》2009年第8期711-715,共5页Chinese Ophthalmic Research

摘　　要：目的建立一套适用于本视觉电生理检查室的正常值指标,以利于该技术更好地推广。方法对270只正常眼检查结果进行回顾性分析。检查内容及方法按常规检查程序进行。结果正常值范围以95%可信区间,各年龄段正常值以x±s或中位数表示。年龄与视觉电生理指标值相关性分析表明随着年龄的增长,标准光强混合反应ERGa波、b波及P100隐含值呈正相关(r=0.333;r=0.385;r=0.441;P<0.05)。男女比较、左右眼比较差异均无统计学意义(P>0.05)。结论建立了一套可参考的视觉电生理正常值。Objective To establish a reference range is very important in examination of visual electrophysiology due to different recording conditions and equipments. The standardized program of visual electrophysiology is available for the comparison of recording parameters among different laborotaries. Present study was to establish a suitable normative reference value for visual electrophysiological testing system made in China. Methods The electroretinogram（ERG） and visual evoked potential（VEP） were recorded in 270 normal eyes using GT-2000NV domestic inspectoscope from March to September in 2007. The recording items of ERG included rod response, cone response, oscillatory potential, 30Hz flicker ERG, and those of VEP included pattern VEP and flash VEP. The recording result was reviewed and analysed, and the normative value based on this equipment was colculated and determined. Results The 95% confidential interval of normative values was defined in amplitudes and latencies of various responses. The normal distribution data included the latencied of various waves and amplitues of waves but rod b wave, P-VEP P100 and F-VEP P100-The positive correlations was found between age of subjects with maximum a, maximum b wave implicit time,P100 latency（r =0.333,P =0.047;r =0.385,P =0.021;r =0.441,P =0.017）. There were not statistically significant differences in the normative values of ERG and VEP between male and female or the left eyes and right eyes（P 〉 0. 05）. In a normal subject, the configuration of wave was similar between the left and right eye based on the data from GT- 2000NV system. Conclusion The reference normative value is established in visual electrophysiological examination of CT- 2000NV system.

关 键 词：视网膜电图 视觉诱发电位 参考值 

分 类 号：R770.43[医药卫生—眼科]