Keratomileusis


Keratomileusis

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Keratomileusis is the surgical improvement of the refractive state of the cornea performed by lifting up the front surface of the eye by forming a thin hinged flap under which the shape of the cornea is changed by using an excimer laser or other surgical device. A microkeratome is usually used to cut the flap, but a femtosecond laser can also be used to make the flap. Before the advent of the excimer laser, keratomileusis was performed using a cryolathe, which froze thin flaps of corneal tissue and lathe cut them much like one cuts the lens of a pair of glasses. After thawing, these reshaped flaps were placed under the front flap to correct visual improvement. LASIK is currently the only commonly performed keratomileusis procedure.

Etymology

The word is probably derived from:Greek - keras (kerat-), horn, cornea, + smileusis, carving

ee also

*Jose Barraquer

External links


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Look at other dictionaries:

  • Keratomileusis — Saltar a navegación, búsqueda Keratomileusis es la corrección quirúrgica del estado refractivo de la córnea realizado levantando la superficie delantera del ojo formando una fina capa con bisagras debajo de la cual la forma de la córnea es… …   Wikipedia Español

  • keratomileusis — / mī lūˈsis/ noun (Gr mileusis shaping) the surgical reshaping of the cornea to correct defective vision • • • Main Entry: ↑keratin …   Useful english dictionary

  • keratomileusis — n.; see intrastromal keratomileusis, LASIK (laser in situ keratomileusis) …   The new mediacal dictionary

  • keratomileusis — Surgical alteration of refractive error by changing the shape of a deep layer of the cornea : the anterior lamella is peeled back, frozen, and recarved on its back surface on a …   Medical dictionary

  • keratomileusis — noun Etymology: New Latin, irregular from kerat + Greek smileusis carving, from smilē knife, lancet Date: 1978 keratoplasty in which a piece of the cornea is removed, frozen, shaped to correct refractive error, and reinserted compare LASIK …   New Collegiate Dictionary

  • keratomileusis — noun Improvement of the refractive state of the cornea, performed by cutting a thin hinged flap in the front surface of the eye and lifting it to access the cornea …   Wiktionary

  • Keratomileusis — Kerato|mile̲u̲|sis [↑kerato...; zweiter Wortbestandteil unklar] w; : operatives Verfahren zur Behandlung der Kurzsichtigkeit, bei dem von der Oberfläche der Augenhornhaut eine dünne (unter 50 μm) Gewebeschicht entfernt und diese dadurch… …   Das Wörterbuch medizinischer Fachausdrücke

  • Laser-in-situ-Keratomileusis — Die Laser in situ Keratomileusis (LASIK) ist die derzeit populärste Methode der refraktiven Chirurgie. Es ist eine Augenoperation, die eine Brille oder Kontaktlinse zur Korrektur der Brechkraft ersetzen soll. Inhaltsverzeichnis 1 Grundlagen 2… …   Deutsch Wikipedia

  • laser-assisted in-situ keratomileusis — la·ser as·sist·ed in situ keratomileusis lā zər ə sis təd n LASIK * * * keratoplasty in which the excimer laser and microkeratome are combined for vision correction; the microkeratome is used to shave a thin slice and create a hinged flap in the… …   Medical dictionary

  • 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). The procedure is best known as LASIK, an acronym for laser assisted …   Medical dictionary


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