Table 2: Choroidal thickness using the ETDRS grid.

ETDRS sectorYoung healthy (group 1)Aged healthy (group 2)Young myopic (group 3)Aged diabetic (group 4)
Mean (μm)SDMean (μm)SDMean (μm)SDMean (μm)SD

Center315.7337.12237.7568.57239.0060.30186.2469.89
Inner temporal317.6572.30231.3062.62246.1060.85175.7367.17
Inner superior309.1168.58240.3562.92240.7960.04191.6876.31
Inner nasal285.9570.71218.6370.19201.5759.60173.8275.09
Inner inferior317.2273.91219.3165.44231.0362.13174.6168.70
Outer temporal300.6370.89212.8056.27240.7058.47160.2459.38
Outer superior312.0267.68235.4663.92247.7861.79185.5568.34
Outer nasal224.5368.67169.2970.70150.7351.19137.0671.78
Outer inferior302.4274.12199.1362.81228.5956.20160.2863.21

Sector of the new division
Zone 1 nasal234.7193.06169.3373.10175.3177.57137.5771.43
Zone 1 temporal232.1980.77170.3266.48184.4379.29137.9362.21
Zone 2 nasal255.3387.33178.0566.33189.5069.62142.6664.57
Zone 2 temporal253.8875.41181.0063.64196.5470.98141.2859.14
Zone 3 nasal279.2970.04196.3062.86206.7764.19154.6064.39
Zone 3 temporal277.7771.42198.1962.05214.4762.26155.7360.61
Zone 4 nasal304.8571.60217.0059.71229.4157.96172.1164.49
Zone 4 temporal303.6866.63218.2960.37235.2656.23174.2362.90
Zone 5 nasal320.9367.90234.1059.93246.2158.39185.6266.61
Zone 5 temporal320.9267.37236.5160.98250.5056.96189.7666.24