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VISUAL ACUITY PREDICTION USING THE VISUAL EVOKED RESPONSE *
Author(s) -
Douthwaite W. A.,
Jenkins T. C. A.
Publication year - 1987
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1111/j.1475-1313.1987.tb00772.x
Subject(s) - checkerboard , stimulus (psychology) , visual acuity , amplitude , visual evoked potentials , evoked potential , audiology , spatial frequency , optics , psychology , physics , mathematics , medicine , cognitive psychology , geometry
— 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.