[Cytoplasmic changes in retinal pigment epithelium (rpe) during cyclic lighting (author's transl)]

Cytochemical and stereological studies on frog (rana ridibunda) RPE during a 12 hrs dark/12 hrs light cycle. Rapid changes in surface density of endoplasmic reticulum and in volume density of myeloid bodies shortly after the onset of light. Numerical and volumetric density of microperoxisomes increased after the fourth hour of light, with a concomitant decrease in the volume of phagosomes.