FIGURE 6.

BF profiles along the length of the retina from a to b. Subjects were divided into two groups (24–37-year-olds and 38–68-year-olds). Peak BF in the older group was lower than in the younger group (unpaired t-test p<0.023). Note that the slight shift on the x-axis between the two group is because different subjects had slightly different retinal curvatures while the MRI spatial resolution matrix is Cartesian. Thus, the distances from the fovea did not fall on the same Cartesian grids after linearization. Error bars are ±SD.