Fig. 1From: Absolute and estimated values of macular pigment optical density in young and aged Asian participants with or without age-related macular degenerationCorrelation between absolute and estimated values of macular pigment optical density (MPOD). Absolute and estimated values of individuals in whom both absolute and estimated values were measurable are plotted. Spearman’s correlation coefficient analysis: n = 51; R2 = 0.734; P = 0.001Back to article page