HUMAN ELECTRORETINOGRAPHY AS A GAUGE OF VISUAL PERFORMANCE.
Abstract
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 15, 1964
- Accession Number
- AD0448763
Entities
People
- Thorne Shipley
Organizations
- University of Miami