Figure 5.
The relationship between retinal OEF and oxygen delivery (DO2) based on compiled data obtained within 30 minutes of sham procedure or bilateral common carotid artery occlusion in rats. The data were described by an exponential function: OEF = 0.998* (1 − e–649/DO2; r2 = 0.77; n = 28). Initially, OEF increased with decreasing DO2, but with more severe reductions in DO2, it increased more steeply and approached the theoretical maximum value of one, indicating oxygen was completely extracted from the retinal vasculature.