视力表投影仪视力与对比度视力的相关性  

Correlativity between Projected Visual Chart Vision and Contrast Vision

作　　者：刘冬梅[1,2] 周姝[2,3] 夏文涛[2] 陈捷敏[2] 彭书雅[1,2] 

机构地区：[1]苏州大学医学部法医学系,江苏苏州215123 [2]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 [3]复旦大学上海医学院法医学系,上海200032

出　　处：《法医学杂志》2013年第2期96-98,共3页Journal of Forensic Medicine

基　　金："十二五"国家科技支撑计划项目(2012BAK16B03)

摘　　要：目的研究视力表投影仪视力(以下简称"投影仪视力")与对比度视力测量值的相关性,探讨对比度视力在眼损伤后法医临床学视觉功能障碍鉴定中的应用价值。方法征集中青年志愿受检者79人共129眼作为实验组,分别检查其投影仪视力与对比度视力。对比度视力中,视标对比度分别为100%、25%、10%。统计分析两组实验数据的相关性。结果投影仪视力与100%对比度视力具有一致性;随视标对比度的下降,视力值的大小下降;相同视标对比度下,投影仪视力与对比度视力的均值呈线性相关。结论投影仪视力和对比度视力密切相关,对比度视力可以在法医临床学司法鉴定实践中推广应用。Objective To study the correlativity between the projected visual chart vision （＂projector vision＂ in this paper） and the measured values of contrast vision, and to explore the application of contrast vi- sion in identifying visual impairment after eye injury in the clinical forensic medicine. Methods One hundred and twenty nine eyes of seventy-nine young volunteers were collected for examination both of projector vision and contrast vision. In the examination of contrast vision, the contrast of optotypes were set to 100%, 25% and 10%, respectively. The correlativity of both collected experimental data were sta- tistically analyzed. Results Projector vision was consistent with 100% contrast vision. There was a close and positive correlation between the contrast of optotypes and measured vision values. Under the same contrast of optotypes, projector vision presented a linear correlation with the average value of contrast vision. Conclusion There is a close correlation between projector vision and contrast vision. The contrast vision can be applied to judicial identification in the clinical forensic medicine.

关 键 词：法医学 视力测定法 对比度视力 投影仪视力 相关性 

分 类 号：R770.41[医药卫生—眼科]