Eye surgery and lower the risk of infection. These precautions include the use of antiseptics, such as povidone-iodine, and sterile drapes, gowns and gloves. Although the terms laser eye surgery and refractive surgery are commonly used as if they were interchangeable, this is not the case. Lasers may be used to treat nonrefractive conditions (e.g. to seal a retinal tear). Laser eye surgery or laser corneal surgery is a medical procedure that uses a laser to reshape the surface of the eye. This is done to correct myopia (short-sightedness), hypermetropia (long sightedness) and astigmatism (uneven curvature of the eye's surface). It is
Medical state Medical state Medical states or medical conditions are used to describe a patient's condition (that is, their clinical status) in a hospital. These general terms are most commonly used in information given to the news media, and are rarely used as clinical descriptions by physicians, who in their daily business describe medical problems more precisely. Either or both of two aspects of the patient's state may be reported. First, the patient's current state may be reported, e.g., as being good or serious. Second, the patient's short-term prognosis may be reported, e.g., that the patient is improving, is getting worse, or