The aim of refractive corneal surgery is to improve the refractive state or point of focus of the entire eye to achieve clear vision without glasses. The cornea is the main focusing structure of the eye and its ability to focus is determined by its shape and clarity. Refractive corneal surgery’s target is to change the shape of the cornea in order to enhance the focusing ability of the entire eye. Currently, the main technique for refractive corneal surgery is laser vision correction. The main types being the Lasik procedure in which a superficial flap is created and the laser is applied to the exposed inner layers of the cornea or surface treatment of the cornea where the laser is applied, as the name implies, to the corneal surface. These treatments can be used for nearsightedness, farsightedness or astigmatism. Astigmatic keratotomy or limbal relaxing incisions are non-laser treatments, in which planned, carefully positioned, incisions of the peripheral cornea are used to reduce astigmatism.