Table 2.

Parameters of the foveal avascular zone.

	Average ± SD	CV	Range
Area, mm2	0.329 ± 0.115	0.35	0.073 to 0.656
Perimeter, mm	2.279 ± 0.418	0.18	1.115 to 3.347
Feret’s diameter, mm	0.749 ± 0.129	0.17	0.375 to 1.047
Circularity	0.769 ± 0.064	0.08	0.617 to 0.900
Axial ratio	1.147 ± 0.103	0.09	1.015 to 1.516
Roundness	0.878 ± 0.071	0.08	0.660 to 0.985
Solidity	0.925 ± 0.029	0.03	0.834 to 0.972