LASIK eye surgery uses lasers to improve vision by reshaping the cornea. A laser is a device that emits light through stimulated emission of radiation, and was first developed in 1960 based on theoretical work. Among other uses, lasers are used in laser eye surgery procedures like LASIK. In a LASIK procedure, a doctor first cuts a small window in the cornea using a laser, then uses another laser to reshape the cornea which improves the patient's vision.