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. 2015 Dec 30;594(3):625–640. doi: 10.1113/JP271182

Figure 3. Change in retinal blood flow and total retinal blood flow .

Figure 3

Change in retinal blood flow (RBF) measured with CLBF (A) and total retinal blood flow (TRBF) measured with the RTVue (B) as a percentage relative to standardized baseline (38 mmHg P ETC O2, 100 mmHg P ET O2) over seven isocapnic (38 mmHg P ETC O2) changes in oxygen (40–500 mmHg P ET O2). Each black circle (A, CLBF) and square (B, RTVue) represents a participant for a single blood gas condition. The average of each isocapnic stage is shown as a black rectangle. The additional hypocapnic hyperoxic stages are delineated by red circles (A) or red squares (B), with each point representing a single participant; the red rectangle displays the average of this stage. *P < 0.05, **P < 0.01, ***P < 0.001.