Mean IOP Relationship Coefficient (change in GAT C-IOP / change in measured IOP by specified modality) Constant (mm Hg) Adjusted R Squared Standard Error* (mm Hg)
Cornea Tono-Pen   0.99 (P<0.005)   1.95   0.49   0.53
Pneumotonometer 1.21 (P<0.005) -7.47 0.85 0.29
Superotemporal Sclera        
Tono-Pen 0.23 (P=0.01) 9.56 0.10 0.70
Pneumotonometer 0.52 (P<0.005) 1.35 0.40 0.70
Superonasal Sclera        
Tono-Pen 0.28 (P<0.005) 8.18 0.17 0.68
Pneumotonometer 0.48 (P<0.005) 2.79 0.28 0.63
Inferotemporal Sclera        
Tono-Pen 0.15 (P<0.005)) 10.29 0.16 0.68
Pneumotonometer 0.41 (P<0.005) 0.88 0.40 0.58
Inferonasal Sclera        
Tono-Pen 0.09 (P=0.13) 12.83 0.03 0.73
Pneumotonometer 0.41 (P<0.005) 1.14 0.36 0.60
Table 3: Linear regression model with corneal goldmann applanation intraocular pressure as outcome variable.