Acuity perimetry: estimation of neural channels.
Measurements of peripheral visual acuity allow quantitative estimations of retino-cortical neural channels. Analysis of results from high-pass resolution perimetry revealed that about 2/3 of all channels are contained within 30 degrees of visual field eccentricity and that loss of 1/3 raises the average threshold level about 1 decibel. The analytical procedure can be applied to any type of visual field defect.
Frisén
L
L
Department of Ophthalmology, University of Göteborg, Sweden.
D000293:Adolescent; D000328:Adult; D000368:Aged; D006801:Humans; D008875:Middle Aged; D012165:Retinal Ganglion Cells / Q000166:cytology; D014792:Visual Acuity; D058609:Visual Field Tests; D014794:Visual Fields; D014795:Visual Pathways / Q000502:physiology