Fig. 2
From: Increased aqueous humor levels of endothelin-1 in patients with open angle glaucoma
Relationship between endothelin-1 levels in aqueous humor and intraocular pressure among patients with normotensive or hypertensive open angle glaucoma. Graph plotting measurements of endothelin-1 (ET-1) concentration against the maximum intraocular pressure (IOP) measurement for each patient within the indicated cohort, which includes normal tension glaucoma (NTG; black dots) and primary open angle glaucoma (POAG; grey dots). Aqueous humor ET-1 concentration correlated positively (R = 0.36) with IOP. In this graph, the solid and dotted lines represent the line of regression and 95% confidence interval, respectively, inset Pearson’s correlation coefficient (R), and each dot represents data from one sample from one patient