THE VER AS A PREDICTOR OF NORMAL VISUAL ACUITY IN THE ADULT HUMAN EYE

Abstract— The ability of the evoked potential to predict conventional visual acuity, as measured with a Landolt C test, was investigated for subjects with normal acuities. Both peak‐to‐trough and Fourier‐analysed amplitudes were used. The extrapolation technique assumed curvilinear regression and produced correlations no better than did a method employing amplitude measurements of a single check size of 5.5 min arc (r= 0.67). Assessment of Landolt C acuity by subjective use of the evoked potential stimulus was unable to produce a higher correlation.

[1]  V. Towle,et al.  Objective determination of human visual acuity from the visual evoked potential , 1979, Perception & psychophysics.

[2]  F. Campbell,et al.  Electrophysiological evidence for the existence of orientation and size detectors in the human visual system , 1970, The Journal of physiology.

[3]  S. Sokol,et al.  Visually evoked cortical responses of amblyopes to a spatially alternating stimulus. , 1973, Investigative ophthalmology.

[4]  S. Sokol,et al.  Measurement of infant visual acuity from pattern reversal evoked potentials , 1978, Vision Research.

[5]  D. Regan.  Some characteristics of average steady-state and transient responses evoked by modulated light. , 1966, Electroencephalography and clinical neurophysiology.

[6]  M. R. Harter,et al.  Objective determination of human visual acuity: pattern evoked potentials. , 1977, Investigative ophthalmology & visual science.

[7]  H. Skalka.  Comparison of Snellen acuity, VER acuity, and Arden grating scores in macular and optic nerve diseases. , 1980, The British journal of ophthalmology.

[8]  M Millodot,et al.  Refraction determined electrophysiologically. Responses to alternation of visual contours. , 1970, Archives of ophthalmology.

[9]  D Regan,et al.  Speedy assessment of visual acuity in amblyopia by the evoked potential method. , 1977, Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde.

[10]  T. Jenkins,et al.  Visually Evoked Responses to Checkerboard Patterns: Check and Field Size Interactions , 1982, American journal of optometry and physiological optics.

[11]  E. Marg,et al.  Eye Patching and Visual Evoked Potential Acuity in Children Four Months to Eight Years Old , 1982, American journal of optometry and physiological optics.