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
Inclusive fitness in humans are commonly found in many organisms that have been studied, including in social mammal species. As Hamilton pointed out, "Altruistic or selfish acts are only possible when a suitable social object is available. In this sense behaviours are conditional from the start" (Hamilton 1987, see above section). Since a reliable context of interaction between social actors is always a necessary condition for social traits to emerge, a reliable context of interaction is necessarily present to be leveraged by context-dependent cues to mediate social behaviours. Focus on mediating mechanisms of limited dispersal and reliable developmental context has allowed significant progress in