An illustration of the eye, with cilory body, cornea, iris, and lens labeled. An enlarged section shows the back of the eye, including the retina, rods and cones, subretinal space, pigment epithelium, choroid, and sclera.

In the back of the vertebrate eye, the apical membrane of the retinal pigment epithelium (RPE) and the photoreceptor outer segments form a very tight anatomical relationship.

Last updated: July 17, 2019