Pressure-flow relationship using the categorized ocular perfusion pressure (OPP)—mean blur rate in tissue area data of optic nerve head (MT<sub>ONH</sub>, upper panel) and peripapillary region (MT<sub>PPR</sub>, lower panel) during isometric exercise.

<p>Relative data were sorted into 9 groups consisting of 18 individual values according to ascending OPP values. The means and the 95% confidence intervals are shown (n = 27). Asterisks indicate significant increase from baseline blood flow values.</p>