Definition of pigment epithelium in English:

pigment epithelium


mass nounAnatomy
  • A layer of pigmented cells in the retina of the eye, overlying the choroid.

    • ‘Finally, the retina and retinal pigment epithelium differentiate from the optic cup, and the optic nerve develops from the optic stalk.’
    • ‘These vessels supply oxygen and nutrients to the retinal pigment epithelium and photoreceptor cells and carry away waste products.’
    • ‘Some investigators believe that the disease resides in the neural retina (rods and cones), whereas others are studying the retinal pigment epithelium (the layer of cells that provide nutrition to the rods and cones).’
    • ‘Areas of atrophic retinal pigment epithelium also may be found in the macular area.’
    • ‘The retina is composed of two layers, including the stratified inner sensory layer, which is closest to the vitreous, and a single outer layer of retinal pigment epithelium, which is attached to the choroid by Bruch's membrane.’