[Laser-assisted subepithelial keratectomy (LasEk).  Review of the current state of knowledge]. 
This article offers an overview of the current state of knowledge on the results and techniques of the evolving refractive procedure called laser-assisted subepithelial keratectomy (LasEk).  A few peer-reviewed published clinical and experimental studies on this new technique are critically debated.  Furthermore we discuss the indications for this procedure in comparison to photorefractive keratectomy (PRK) and laser in situ keratomileusis (Lasik) based on the current body of literature and the first author's clinical and scientific personal experience.