Small Incision Lenticule Extraction (SMILE) is a minus eye surgery method using a laser. SMILE is done by reshaping the cornea using a laser, so that light can be refracted well into the retina. In good vision, light will enter through the cornea and lens to refract to focus on the retina. But in patients with nearsightedness, the cornea is disturbed, so that refraction of light does not focus on the retina and causes blurred vision. Sorry, Page was move to here , please visit the link to read full article. Thanks you.