the sole cuboidal layer of pigmented cells which abuts the ends of the photoreceptors in the retina. The pigment within the cells lessens light scatter by absorbing photons which elude the photopigments inside the photoreceptors. The is also vital for the wellbeing of the photoreceptors because it phagocytoses disks of membrane which are persistently expulsed by the photoreceptors.

PIGMENT EPITHELIUM: "For the purpose of this week's discussion board, you'll need to read the sections in your textbook on pigment epithelium."
Cite this page: N., Pam M.S., "PIGMENT EPITHELIUM," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/pigment-epithelium/ (accessed September 25, 2021).