Figure 1.
Bland–Altman plots with 95% limits of agreement (dashed lines) illustrate the difference in scotopic thresholds between intrasession measurements (A) cyan stimulus, (C) red stimulus, and between intersession measurements (B) cyan stimulus and (D) red stimulus. Black dotted line represents the mean between the two measurements. Black circles represent young participants (N = 5) and red circles represent older participants (N = 4).
