**Figure 7. **Analysis of spatial variation of RPE morphometry. **A**: Average cell density. **B**: Average cell area. **C**: Average eccentricity. **D**: Average form factor. **E**: Average percentage of hexagonal cells. These were averaged across all age groups in three areas of the retina. Error bars
represent standard deviations. One-way ANOVA with Tukey’s multiple comparisons test. P values are provided on the image. RPE
cells in the macula and the mid-periphery were generally similar in area and shape while the far periphery differed with larger
areas of more irregularly shaped RPE cells.