Intraocular lens power calculation using total keratometry and ray tracing in eyes with previous small incision
Roman Lischke1,2, Rainer Wiltfang3,4, Martin Bechmann3,4
1University Eye Hospital, Ludwig-Maximilians-University, Munich, Germany.
American Journal of Ophthalmology Case Reports
|March 15, 2024
Abstract
Purpose:
To assess the IOL power calculation accuracy in post-SMILE eyes using ray tracing and a range of total keratometry based IOL calculation formulae.
Observations:
Ray tracing showed excellent predictability in IOL power calculation after SMILE and its accuracy was clinically comparable with the Barrett TK Universal II and Haigis TK formula.
Conclusions And Importance:
Incorporating posterior corneal curvature measurements into IOL power calculation after SMILE seems prudent. The ray tracing method as well as selected TK-based formulae yielded excellent accuracy and should be favored in post-SMILE eyes.
