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[Comparison of several visual evoked potential tests in measuring normal adults' real visual acuity]
1Institute of Forensic Science, Ministry of Justice, PR China, Shanghai 200063, China.
Objective:
To study and compare several measures of pattern visual evoked potential in measuring normal adults' real visual acuity.
Methods:
Forty normal eyes were selected to test the pattern reversal visual evoked potential, black-white scanning pattern visual evoked potential, red-black scanning pattern visual evoked potential, respectively. Their experiment visual acuity was compared with their real visual acuity.
Results:
The black-white scanning pattern visual evoked potential and the red-black sweep pattern visual evoked potential were more accurate, more convenient, and much faster in measuring real visual acuity than the pattern reversal visual evoked potential.
Conclusion:
Pattern reversal visual evoked potential, black-white scanning pattern visual evoked potential, and red-black scanning pattern visual evoked potential all can be used in forensic medical examination of eye injuries.
