Fig. 5From: Comparison of ultrasonographic versus infrared pupillary assessmentBland–Altman graphs show the agreement between the IPA and UPA. Panels a and b demonstrate the agreement between UPA and IPA for OD and OS, respectively. Panels c and d demonstrate the agreement between UPA and IPA for OD and OS, respectively, in neurocritically ill patients. The solid lines represent the average of the differences; dashed lines indicate limits of agreement (mean ± 1.96 times the standard deviation)Back to article page