Layers
Bruch's membrane consists of five layers (from inside to outside):
- the basement membrane of the retinal pigment epithelium
- the inner collagenous zone
- a central band of elastic fibers
- the outer collagenous zone
- the basement membrane of the choriocapillaris
The retinal pigment epithelium transports metabolic waste from the photoreceptors across Bruch's membrane to the choroid.
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