Myopia, also known as nearsightedness and hipometropía, is an ocular abnormality resulting focus vision on distant objects because of a dysfunction in the retina. Thus, although the view is normal at close range, as you look away, they are gradually blurring the images. There are many degrees of myopia, high myopia being which exceeds the 6.5 diopters. The most commonly used for correcting this ailment resources are glasses and contact lenses, but increasingly patients are operated by laser surgery, the application of which depends on the characteristics of each eye there. This intervention consists of modifying the surface of the cornea correcting the diopter affected. Finally, in the most severe myopia, the placement of intraocular lenses, which function is the same as the outer lenses but located within the eye and permanently is possible.