FIGURE 4.

Correlation plot of choroidal blood flow (ChBF) versus age for the ROI "a" shown. ChBF versus age was statistically significant (R = −0.7, p = 0.003, N = 15) without the two open symbols, which represented two subjects with severe myopia. The regression line was obtained without these two subjects. If they were included, then R = −0.54, p = 0.03, N = 17. There was also significant age-dependent effect for the optic nerve head ROI (labeled as b). There were no significant age-dependent effects for the periphery ROIs (labeled as c and d). Results from ROIs b, c and d are not shown.