Bezold-brücke phenomenon of the extrafoveal retina.

With the use of an asymmetric matching technique, the Bezold-Brück phenomenon of the extrafoveal retina was measured at different eccentricities during the cone-plateau period of the long-term dark-adaptation curve and after 30 min dark adaptation. The results indicate that both the rod and the cone mechanisms contribute to the luminance-dependent hue shift of the extrafoveal retina.