Light-evoked changes in [K+]0 in retina of intact cat eye

Abstract
The changes in [K+]o in the retina of the intact cat eye, in response to flashes of light and maintained illumination, are described. Rod-dominated responses of dark-adapted retinas were examined with an emphasis on changes in [K+]o in the subretinal space. Changes in the steady state occurring in the retinal extracellular space proximal to the subretinal space are discussed.