Visual acuity prediction using the visual evoked response.
A technique is described for predicting visual acuity in adult humans by using the visually evoked response (VER). This involves using a pattern-reversal checkerboard with a small check size (5.5. min arc) as the stimulus, and measuring the peak-to-trough amplitude of the VER wave arising from it. The technique is therefore both rapid and convenient. The pattern-reversal rate was varied in order to assess the influence of the temporal modulation on the VER waves. The results suggest that a rapid pattern reversal rate produces a VER which displays a reduced association with spatial processing.
Douthwaite
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WA
School of Optometry, University of Bradford, U.K.
Jenkins
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TC
D000328:Adult; D005074:Evoked Potentials, Visual; D006801:Humans; D008722:Methods; D010364:Pattern Recognition, Visual / Q000502:physiology; D014792:Visual Acuity