Comparison of IOP Measurement by Goldmann Applanation Tonometer, ICare Rebound Tonometer, and Tono-Pen in Keratoconus Patients after MyoRing Implantation

Table 2

Correlation of CCT with mean IOP difference between GAT, Tono-Pen, and ICare tonometer (Pearson correlation coefficient).

	GAT-Tono-Pen	GAT-ICare	Tono-Pen-ICare
r	0.056	0.247	0.232
value	0.830	0.339	0.360