Surgery to correct myopia, hypermetropia and astigmatism has become very popular over the past few years. Patients have been able to do away with their glasses or contact lenses are can carry out daily activities without having to worry about their vision. This happens by means of the LASIK technique (in situ "keratomyleusis" assisted by means of an "Excimer" laser). This method consists of the application of ultraviolet light on the cornea in order to modify its structure to offset the existing optical defect. This is the most effective and safest procedure available today. In spite of this, as with any surgical procedure, this procedure is not without its complications which may range from a small inflammation in the eye area to extreme cases which require a cornea transplant. A patient who desires to undergo this surgery should be fully aware of all these complications.