title: [Comparison of several visual evoked potential tests in measuring normal adults' real visual acuity].
abstract: 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.
  
  
  CONCLUSIONS
  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.
authors: Institute of Forensic Science, Ministry of Justice, PR China, Shanghai 200063, China.
authors: Wen-tao
authors: WT
authors: Xia
authors: Guang-you
authors: GY
authors: Zhu
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D005074:Evoked Potentials, Visual / Q000502:physiology*; D005260:Female; D005554:Forensic Medicine / Q000379:methods; D006801:Humans; D008297:Male; D008875:Middle Aged; D010364:Pattern Recognition, Visual; D014787:Vision Tests / Q000379:methods*; D014792:Visual Acuity / Q000502:physiology*; D055815:Young Adult