If standard keratometry and biometry measurements are used to calculate the IOL power in a patient who has previously had myopic LASIK, the selected IOL power will most likely be too high.

Correct Answer: False

The selected IOL power will most likely be too low. Keratometry measures predicts corneal power by reading 2 points at approximately 3mm from the center of the cornea. After myopic LASIK, the central corneal power is lower than measured at these paraxial points. The falsely high keratometry readings will lead to a falsely low IOL power and thus a hyperopic surprise postoperatively.