retinal pigment epithelium

The retinal pigment epithelium (RPE) is a layer of cells located at the back of the eye, just beneath the retina. It plays a vital role in maintaining the health of the eye's light-sensitive cells (photoreceptors) by nourishing them, removing waste, and recycling light-sensitive pigments. The RPE also helps absorb excess light, reducing glare and improving visual clarity. Its proper function is essential for clear vision; when the RPE malfunctions or deteriorates, it can lead to vision problems such as age-related macular degeneration.