Skip to main content
. 2021 Feb 5;15:445–451. doi: 10.2147/OPTH.S294710

Table 3.

Comparison of the Mean and Standard Deviation of Intraocular Pressure (IOP) of 20 mmHg or More Measured by the Non-Contact Air-Puff Tonometer (NCT) Relative to the Goldmann Applanation Tonometer (GAT)

NCT (mmHg) GAT (mmHg) p value
Mean 21.3 17.5 <0.001
Standard deviation 1.05 1.08