Figure 2. Bland-Altman plots for different measurements compared with Goldmann applanation tonometer. The differences between the two methods are plotted against the mean value of both. The upper and lower lines represent the 95% limits of agreement. Non-contact tonometer (NCT), Goldmann applanation tonometer (GAT), Goldmann correlated IOP (IOPg), corneal compensated IOP (IOPcc).