Our IOL power estimation is reasonably accurate, with most modern formulas being able to deliver about 80% of patients to within 0.5 D of the intended target.
With newer artificial intelligence methods such as the Ladas Super Formula 2.0 AI, many surgeons can achieve greater than 90% accuracy. However, this still means that on occasion we will have a patient in whom the postop refractive target is missed, with the need for a second procedure to address the residual refractive error. While corneal excimer laser ablation is easy and accurate for a myopic miss, performing a piggyback IOL is often