Figure 4. O2 profiles through the dark-adapted retina of rhesus monkey.

A retinal depth of zero is the vitreoretinal border and 100% is the RPE-choroid border. The lowest oxygen tension is found in the layer containing photoreceptor inner segments with very high mitochondrial density. Rising oxygen tension across the inner retinal layers is due to three layers of inner retinal vasculature. Figure was reproduced from Figure 1 from Linsenmeier and Zhang, 2017. License number 5416050680408.