LASIK

LASIK [lā′sik]
n.
las(er-assisted) i(n situ) k(eratomileusis) < ModL keratomileusis, a cutting of the cornea /span> KERATO- + Gr (s)mileusis, carving < smilē, a knife; see IN SITU
a type of eye surgery used to correct faulty vision: a thin, outer layer of the cornea is cut open and folded back temporarily so that the inner layer can be reshaped with an excimer laser: often written La sik

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also called  laser-assisted in situ keratomileusis 
  laser-based eye (eye, human) surgery commonly used to correct nearsightedness ( myopia), farsightedness ( hyperopia), and astigmatism. LASIK eye surgery was developed in the early 1990s, when ophthalmologists combined the technique of keratomileusis, in which the cornea is removed, frozen, reshaped, and replaced, with the technique of photorefractive keratectomy (PRK), in which a laser is used to reshape the cornea. In the LASIK procedure a hinged flap is made in the outer corneal tissue (the transparent layer covering the front of the eye) and lifted out of the way to allow an excimer laser (an ultraviolet chemical laser, also called an exciplex laser) to reshape the underlying tissue. Tissue reshaping improves the eye's ability to focus light and thus relieves blurred vision and reduces dependency on eyeglasses or contact lenses (contact lens). The natural adherence properties of the replaced corneal flap negate the need for stitches. LASIK surgery is often preferred to photorefractive keratectomy.

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Universalium. 2010.

Look at other dictionaries:

  • LASIK — or Lasik ( laser assisted in situ keratomileusis ) is a type of refractive laser eye surgery performed by ophthalmologists for correcting myopia, hyperopia, and astigmatism. [ [http://www.intelihealth.com/IH/ihtIH/WSS/9339/32123.html LASIK. ]… …   Wikipedia

  • LASIK — La technique du Lasik (LAser in Situ Keratomileusis) est une intervention chirurgicale de l œil. Son principe consiste à découper une fine lamelle dans l épaisseur de la cornée (qui est la partie transparente de la surface de l oeil) afin de… …   Wikipédia en Français

  • LASIK MD — is Canada s leading provider of laser vision correction. As of 2007, LASIK MD performs approximately 40% of the laser vision correction procedures in Canada. [Maclean’s June 11 2007 Volume 120 number 22] LASIK MD was founded in 2001 by Dr. Mark… …   Wikipedia

  • LASIK MD — est une entreprise canadienne offrant des services en matière de correction de la vue au laser. En 2010, LASIK MD a effectué au delà de 70 000 interventions[1], plus de la moitié de toutes les corrections de la vue au laser au Canada[2]. LASIK MD …   Wikipédia en Français

  • LASIK — [lā′sik] n. [las(er assisted) i(n situ) k(eratomileusis) < ModL keratomileusis, a cutting of the cornea < KERATO + Gr (s)mileusis, carving < smilē, a knife; see IN SITU] a type of eye surgery used to correct faulty vision: a thin, outer… …   English World dictionary

  • LASIK — Проверить нейтральность. На странице обсуждения должны быть подробности …   Википедия

  • LASIK — Unter dem Oberbegriff refraktive Chirurgie werden Augenoperationen zusammengefasst, die eine Brille oder Kontaktlinsen zur Korrektur der Brechkraft ersetzen sollen. Die Augenheilkunde kennt mehrere Operationsmethoden zur Korrektur von… …   Deutsch Wikipedia

  • Lasik — La technique du Lasik (LAser in Situ Keratomileusis) est une intervention chirurgicale de l œil. Son principe consiste à découper une fine lamelle dans l épaisseur de la cornée (qui est la partie transparente de la surface de l oeil) afin de… …   Wikipédia en Français

  • LASIK — Abbreviation standing for laser assisted in situ keratomileusis, a kind of laser eye surgery designed to change the shape of the cornea to eliminate or reduce the need for glasses and contact lenses in cases of severe myopia (nearsightedness).… …   Medical dictionary

  • LASIK — Intervención LASIK El …   Wikipedia Español

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