Medical Definition of Retinal pigment epithelium
Retinal pigment epithelium: The pigment cell layer that nourishes the retinal cells.
The retinal pigment epithelium is located just outside the retina and is attached to what is called the choroid, a layer filled with blood vessels that nourish the retina.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 5/13/2016
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