Cost drivers of endothelial keratoplasty (EK): a time-driven activity-based costing analysis.

TDABC cost analysis identified a day-of-surgery cost and surgical time reduction associated with the use of preloaded grafts for DMEK, DMEK compared to DSAEK, and isolated EK compared to EK combined with cataract surgery. This study provides an improved understanding of surgical cost drivers and margin incentivization, which may explain trends and indirectly influence patient care decisions in cornea surgery practices.