SMall Incision Lenticule Extraction (SMILE) is a laser eye surgery used to correct nearsightedness (myopia) and astigmatism. This procedure uses a femtosecond laser to create a lenticule, a disc-shaped piece of tissue, in the cornea. The laser is then used to create a small arched incision in the cornea’s surface. The lenticule is then extracted through this incision and discarded. The removal of this lenticule reshapes the cornea, thus correcting vision.