Table 2: Mean Intraocular Pressure and Ocular Pulse Amplitude by Tonometry Type.

- Right Eye
n=106
Left Eye
n=104
Mean NCT (mm Hg) 15.2 +/- 5.4 14.7 +/- 3.6
Mean DCT (mm Hg) 19.1 +/- 5.9 18.2 +/- 4.1
ΔT (mm Hg) 3.9 +/- 3.2 3.5 +/- 3.2
Paired t-test NCT versus DCT p <.001 p <0.001
DCT OPA (mm Hg) 3.0 +/- 1.3 3.0+/- 1.3

Legend:
NCT = non-contact tonometer.
DCT = dynamic contour tonometer.
ΔT = mean difference in intraocular pressure (DCT – NCT) derived from individual measurements.
OPA = ocular pulse amplitude obtained from DCT.

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