[Visual evoked potentials in the evaluation of visual acuity in infants]

Vision acuity was assessed by visual evoked potentials (VEP) in response to low-frequency chess pattern reversion in 31 full-term healthy babies aged 6 to 28 weeks. The mean vision acuity of babies aged 6 to 9 weeks was 0.5 +/- 0.01, of those aged 16 to 18 weeks 0.1 +/- 0.01; in babies aged 24 to 26 weeks vision acuity was at least 0.14, but still lower than in normal-sighted adults. The authors emphasize the advantages of low-frequency chess pattern reversion in assessment of vision acuity from VEP in babies.