Fig. 4
From: Obesity negatively impacts corneal nerves in patients with diabetes mellitus

Scatter plots of body mass index (BMI) and significant corneal nerve parameters. Scatter plots demonstrating significant associations between BMI and corneal nerve parameters among the study participants: (a) corneal nerve fiber density (CNFD, number of fibers/mm2), (b) corneal nerve fiber length (CNFL, total length of fibers mm/mm2), and (c) corneal nerve branch density (CNBD, number of branch points on main fibers/mm2). The plots show a decline in corneal nerve parameters with increasing BMI. The x-axis represents the BMI values, and the y-axis represents the values of the respective corneal nerve parameters