Human Electroretinography as a Gauge of Visual Performance

摘要

A report on the ERG in the first day of life is noted to be in press. The application of the ERG to children in nutritional surveys is felt to be its major strength. A new apparatus is described permitting the plotting of the change in the central scotoma as a function of time in the dark. A statistical analysis is presented of the ERG in 100 normal eyes. The question is raised concerning the possibility of false negative ERG responses. The Cordis portable apparatus was tested in the field, powered by a 12 volt car battery, and it was found to be entirely satisfactory. A small sample of rare night blind patients (three with entirely normal photopic acuity) has been obtained and extensively studied. Within that sample, a close correlation between adaptometric curves and the ERG was not found. Further intensive work is planned with these patients to explore ERG correlations with other definitions of night vision besides the adaptometric ones. A physiological computer (Neurac) has been in operation for about two months and first results are reported. (Author)