The mean and standard deviation of the optic disc area were 2.16 ± 0.412 mm2 for Caucasian, 2.30 ± 0.568 mm2 for Chinese, 2.31 ± 0.411 mm2 for Filipino, 2.38 ± 0.401 mm2 for African, and 2.40 ± 0.382 mm2 for Hispanic. Optic disc area, age, and spherical equivalent significantly ...