法医学杂志

法医学杂志 ›› 2009, Vol. 0 ›› Issue (2): 88-91.

• 论文 • 上一篇    下一篇

扫描图像视觉诱发电位视力检查系统的研制及评价

李孝鹏;张晨;忽俊;吴军;朱炎苗;李海生;   

  1. 上海华医司法鉴定所;上海医学会;上海市宝山中心医院眼科;
  • 发布日期:2009-04-25 出版日期:2009-04-28

Establishment of the Sweep Pattern Visual Evoked Potential System and Its Application

LI XIAO-PENG1, ZHANG CHEN2, HU JUN3, WU JUN1, ZHU YAN-MIAO1, LI HAI-SHENG1 (1. SHANGHAI HUAYI FORENSIC JUDICAL APPRAISAL INSTITUTE, SHANGHAI 200050; 2. SHANGHAI MEDICAL ASSOCIATION, SHANGHAI 200040; 3. OPHTHALMOLOGY DEPARTMENT, SHANGHAI BAOSHAN CENTER HOS   

  • Online:2009-04-25 Published:2009-04-28

摘要： 目的研制一套扫描图像视觉诱发电位(sweep pattern visual evoked potential,SPVEP)视力检查系统,为客观视力检测提供依据。方法在国产视觉电生理仪的基础上,进行相应的硬件改造,并编制完成了具备假随机检测功能的控制程序。分别选取正常屈光眼10眼、屈光不正眼10眼、病变眼48眼、假性屈光不正眼10眼共78眼,测试每一眼的视力表视力,然后采用本研究设计的SPVEP记录程序检测其SPVEP视力,用统计学方法分析两种视力检查结果的差异。结果线性回归分析表明78眼的SPVEP视力与视力表视力之间总体上存在良好的相关性(r2=0.946)。结论运用本SPVEP视力检查程序可以评估受检眼的客观视力。

关键词: 法医学, 诱发电位, 视觉, 视力测定法, 软件

Abstract: Objective To establish an acuity inspection system with sweep pattern visual evoked potential (SPVEP) so as to provide the evidence for acuity objective inspection. Methods Based on the domestic sweep pattern visual evoked apparatus, sections of hardware were reformed and a manipulation program possessing false random control software was compiled. The SPVEP acuity for the 78 eyes(10 normal eyes, 10 ametropia eyes, 48 prevalence eyes, 10 false ametropia eyes) was estimated with our acuity objective inspection system, then compared with the E visual acuity of those eyes by statistical procedure. Results There was a close correlation between the SPVEP acuity and E visual acuity for 78 eyes (r2=0.946). Conclusion SPVEP acuity inspection system can be applied to estimate objective acuity.

Key words: forensic medicine, evoked potentials, visual, optometry, software