Fig. 3

BA plot assessing the agreement between the K5M and S390L Firefly WDR slitlamp for measuring TMH. The solid blue line indicates the mean difference. The dashed red lines represent the 95% limits of agreement (mean difference ± 1.96 SD). Individual paired measurements are plotted as orange circles. The vertical bars on the left side depict the SD of the differences, calculated at three distinct average value intervals.