Change in Epithelial Thickness Profile 24 Hours and Longitudinally for 1 Year After Myopic LASIK: Three-dimensional Display With Artemis Very High-frequency Digital Ultrasound

A lenticular change occurred in the epithelial thickness profile, with more thickening centrally than paracentrally; 22% of the total increase in central thickness occurred overnight, 58% between 1 day and 1 month, and 20% between 1 and 3 months, with stability between 3 and 12 months. The lenticular epithelial changes contribute to the observed myopic shift after myopic LASIK during the first 3 months.