Table 1.

Agreement between the intraocular pressure by various methods

Bland–Altman plots	Overall (n = 120) 95% CI	Caucasian (n = 88) 95% CI	African American (n = 32) 95% CI
Goldmann IOP and PASCAL IOP	−6.9 to +4.10	−4.06 to +5.60	−2.50 to +9.02
Ehlers IOP and PASCAL OPI	−8.25 to +4.15	−3.99 to +7.57	−4.38 to +9.91

Notes: CI, confidence interval; Goldmann IOP, the intraocular pressure measured using the Goldmann applanation tonometer; PASCAL IOP, the intraocular pressure measured using the PASCAL dynamic contour tonometer; Ehlers IOP, the value obtained by applying Ehlers correction factor to the intraocular pressure measured using the Goldmann applanation tonometer.