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Fa Yi Xue Za Zhi. 2013 Apr;29(2):96-8.

[Correlativity between projected visual chart vision and contrast vision].

[Article in Chinese]

Author information

  • 1Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, China. l_dm1987@163.com



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 vision in identifying visual impairment after eye injury in the clinical forensic medicine.


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 statistically analyzed.


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.


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.

[PubMed - indexed for MEDLINE]
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