Fig. 7
From: Lens density measurements by two independent psychophysical techniques
Bland Altman plot for testing the level of agreement between LEAs obtained under photopic and scotopic viewing conditions. The dashed horizontal line represents the mean difference between the scotopic and the photopic LEAs, with the 95 % confidence interval shown in gray. The limits of agreement (mean ± 1.96 SD) are included with their associated 95 % confidence intervals shown in gray. The sloping regression line and its 95 % confidence limits have been added to the plot