Citation

Domey RG. Highw. Res. Board bull. 1962; 336: 22-25.

Copyright

(Copyright © 1962, National Research Council (U.S.A.), Highway Research Board)

DOI

unavailable

PMID

unavailable

Abstract

Dark adaptation and critical flicker fusion thresholds for 60 subjects ranging in age from 16 through 89 were obtained. A methodical analysis of the statistical interrelationship among dark adaptation thresholds and critical flicker fusion thresholds as function of surround, light/dark ratio, and age were systematically examined. The prediction of dark adaptation threshold at the 40th minute was significantly increased by certain critical flicker fusion data.