Differences between estimated postoperative corneal power (K) from Orbscan IIz, Pentacam, and clinical history method (CHM).

aEstimated corneal power derived from CHM was used as a reference.ΔKCHM = KCHM-KOrbscan IIz/Pentacam, CI = confidence interval, LoA = limits of agreement, TOP = total optical power from Orbscan IIz, EKR = equivalent keratometric readings from PentacamDifferences between estimated postoperative corneal power (K) from Orbscan IIz, Pentacam, and clinical history method (CHM).