Table 2.

Mean and standard deviation of macular pigment optical density: volume, area, maximum and mean

Variable	Mean ± SD	95% CI
MPOD volume	8837.74 ± 2674.98	8470.29–9205.20
MPOD area	62,269.03 ± 11,724.23	60,658.50–63,879.57
Max MPOD	0.39 ± 0.07	0.38–0.40
Mean MPOD	0.14 ± 0.05	0.14–0.15

Values of maximum and mean MPOD in density units (d.u.); volume measured in d.u. degrees²; area measured in degrees²

MPOD, macular pigment optical density; Max, maximum; CI, confidence interval