法医学杂志 ›› 2015, Vol. 31 ›› Issue (1): 20-22.DOI: 10.3969/j.issn.1004-5619.2015.01.005

• 论著 • 上一篇    下一篇

对比度视力与扫描视诱发电位视力的相关性

彭书雅1,2,陈捷敏1,刘冬梅1,3,周  姝1,4,王  萌1,夏文涛1   

  1. (1. 司法部司法鉴定科学技术研究所 上海市法医学重点实验室,上海 200063; 2. 新光法医司法鉴定所,山东 临沂 276017; 3. 苏州大学医学部法医学系,江苏 苏州 215123; 4. 复旦大学上海医学院法医学系,上海 200032)
  • 发布日期:2015-02-25 出版日期:2015-02-28
  • 通讯作者: 王萌,女,主检法医师,主要从事法医临床学鉴定与研究;E-mail:wangm@ssfjd.cn 夏文涛,男,研究员,主任法医师,硕士研究生导师,主要从事法医临床学鉴定与研究;E-mail:xiawt@ssfjd.cn
  • 作者简介:彭书雅(1988—),女,山东临沂人,硕士研究生,主要从事法医临床学研究;E-mail:soochow_psy@163.com
  • 基金资助:

    “十二五”国家科技支撑计划项目(2012BAK16B03);中央级科研院所公益基金项目(GY2013G-6)

Correlation between Contrast Vision and Sweep Visual Evoked Potential Acuity

PENG SHU-YA1,2, CHEN JIE-MIN1, LIU DONG-MEI1,3, ZHOU SHU1,4, WANG MENG1, XIA WEN-TAO1   

  1. (1. Shanghai Key Laboratory of Forensic Medicine, Institute of Forensic Science, Ministry of Justice, P.R.China, Shanghai 200063, China; 2. Xinguang Institute of Judical Expertise, Linyi 276017, China; 3. Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, China; 4. Department of Forensic Medicine, Shanghai Medical College, Fudan University, Shanghai 200032, China)
  • Online:2015-02-25 Published:2015-02-28

摘要: 目的 比较正视眼及低度、中度近视眼的对比度视力(contrast vision,CV)与扫描视诱发电位视力(sweep visual evoked potential acuity,SVEP-A)的相关性。 方法 对健康青年志愿者96眼分别进行CV与SVEP-A检测。其中正视组37眼,低度近视组27眼,中度近视组32眼。采用方差分析和秩和检验对CV及SVEP-A进行统计分析。 结果 (1)各组CV和SVEP-A均随对比度降低而逐渐下降。(2)100%对比度,低度近视组与正视组CV的差异有统计学意义(P<0.05);100%、25%和10%对比度,中度近视组与正视组CV的差异均有统计学意义(P<0.05)。(3)同组中,100%与25%、10%对比度SVEP-A比较,差异均有统计学意义(P<0.05)。(4)100%和10%对比度,CV与SVEP-A的差异有统计学意义(P<0.05)。 结论 近视眼CV下降与屈光不正、眼底病变等多种因素有关,矫正屈光不正对于CV和SVEP-A均具有重要意义。

关键词: 法医学, 扫描图像诱发电位, 视觉, 对比度

Abstract: Objective To compare the correlation between contrast vision (CV) and sweep visual evoked potential acuity (SVEP-A) among people with emmetropia, mild myopia, and moderate myopia. Methods The CV and SVEP-A were tested individually in 96 eyes from healthy young volunteers, including 37 eyes of emmetropia, 27 eyes of mild myopia, and 32 eyes of moderate myopia. The statistic analysis was done by ANOVA analysis and rank sum test. Results (1) With the decrease of contrast, CV and SVEP-A decreased in every group. (2) At 100% contrast, the difference of CV between emmetropia and mild myopia had statistical significance (P<0.05). At 100%, 25% and 10% contrast, the difference of CV between emmetropia and moderate myopia had statistical significance (P<0.05). (3) In the same group, the difference of 100% and 25% contrast had statistical significance (P<0.05). So was between 100% and 10% contrast. (4) At 100% and 10% contrast, the difference of CV and SVEP-A had statistical significance (P<0.05). Conclusion The CV of myopia relates to many factors including ametropia and fundus lesions. The correction of ametropia is important to the values of CV and SVEP-A.

Key words: forensic medicine, sweep visual evoked potentials, vision, contrast

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