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keratoplasty in which a slice of the patient's cornea is removed, shaped to the desired curvature, and then sutured back on the remaining cornea to correct optical error.
laser-assisted in-situ keratomileusis (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 cornea, the flap is reflected back, the exposed cornea is reshaped by the laser, and the flap is replaced, without sutures, to heal back into position.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


Farlex Partner Medical Dictionary © Farlex 2012


Laser-assisted in situ keratomileusis Ophthalmology A type of laser ocular surgery in which the cornea is flapped open and the cornea shaved to correct either near– or farsightedness Statistics 750,000 Americans were LASIK'd in 2000; 90+% of treated Pts achieve better than 20/20 vision Criteria < –12––15 diopters for nearsightedness; +4–+6 for farsightedness Complications Ocular blowout 2º to corneal perforation, flap wrinkling/misalignment, epithelial ingrowth into stroma resulting in vision defects–glare, halos, diminished contrast, ↓ light passing to the pupil, lifting of the cornea with irregular astigmatism. See Custom LASIK, Intraocular lenses. Cf INTACS, Photorefractive keratectomy, Radial keratotomy.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.


Abbreviation for laser-assisted in situ keratomileusis.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

Laser-assisted in-situ keratomileusis (LASIK)

Aprocedure that uses a cutting tool and a laser to modify the cornea and correct moderate to high levels of myopia.
Mentioned in: Myopia, Radial Keratotomy
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.


A surgical procedure on the cornea aimed at correcting ametropia. A suction ring is applied to the globe and an increase in intraocular pressure to approximately 65 mmHg is induced for a maximum of two minutes. During that time an automated microkeratome advances across the cornea creating a corneal flap of about 8.5 mm in diameter, which contains the epithelium, Bowman's layer and a portion of the anterior stroma. The vacuum is then switched off and the suction ring removed. The corneal flap, which is hinged on one side of the cornea, is turned round onto the conjunctiva and the exposed stroma is ablated with the excimer laser. On completion of the laser ablation, the corneal flap is repositioned and left to adhere without sutures. There are some complications associated with this procedure, but it gives rise to less postoperative pain and more rapid visual rehabilitation than other similar surgical procedures (Fig. L4). LASIK is an acronym made from the following italic letters 'laser in situ keratomileusis' or 'laser assisted intrastromal keratoplasty'. See corneal ectasia; epikeratoplasty; Intacs; keratome; keratomileusis; keratophakia; photorefractive keratectomy.
Fig. L4 LASIK procedure. A, an incision is made into the anterior part of the cornea leaving a hinge of intact margin (shown on the left). B, the corneal flap is rolled back leaving it attached at its hinge. Excimer laser ablation is performed on the expos corneaenlarge picture
Fig. L4 LASIK procedure. A, an incision is made into the anterior part of the cornea leaving a hinge of intact margin (shown on the left). B, the corneal flap is rolled back leaving it attached at its hinge. Excimer laser ablation is performed on the expos cornea
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann

Patient discussion about LASIK

Q. Has anyone had a bad experience with Lasik? I am considering the procedure but am worried about the risks.

A. i know several ophthalmologist- and they all ware's like a giant experiment on people- no one really knows what will be the long reach out come of it. but then again, cellular radiation is also a world wide i stay with my glasses for now, but that's because i'm not a big risk taker.

More discussions about LASIK
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References in periodicals archive ?
Campaign Time span Region acronym SAFARI-1992 Aug-Sep 1992 South Africa SAFARI 2000 Aug-Sep 2000 South Africa and Namibia NaFoLiCA Sep 2017 Namibia AEROCLO-sA Aug-Sep 2017 Namibia ORACLES Aug-Sep 2016, Namibia, Jul-Aug 2017, Sao Tome, Sep-Oct 2018 Sao Tome CLARIFY Aug-Sep 2017 Atlantic Ocean around Ascension Island LASIC Jul 2016-0ct 2017 Ascension Island Campaign Objective/science focus Overview or acronym planning papers SAFARI-1992 Characterize biomass- Lindesay et al.
Lasic, "Sterically stabilized liposomes," Biochimica et Biophysica Acta, vol.
[59.] Lasic, D.D., Frederik, P.M., Stuart, M.C.A., Barenholz, Y., and Mcintosh, T.J., Gelation of liposome interior: a novel method for drug encapsulation.
But who am I kidding--I'm afraid to have lasic eye surgery!
As reported in The Tablet, Efraim Zuroff, director of the Simon Wiesenthal Center, asked for a protest from the Zagreb archbishop, who then asked for a clarification from Lasic's Dominican superiors.
Croatian-born businessman Anton Lasic, 52, from Kirkcaldy and a friend of Mr Stedul, also called for Sindicic "to be put on the first plane and thrown out".
from Azerbaijan Ahmet Murat Turkoglu, Minister of Transport and Communications of FBiH Denis Lasic and Mario Bevanda on behalf of Hering from A iroki Brijeg signed an agreement today on construction of the motorway section PaprikuA!a-Zenica North (Donja Gracanica), subsection Vranduk-Ponirak in the amount of 76.592.799,03 euros.
Gaudet Sensitivity of Lake-Effect University at Albany, Cloud Microphysical State University of New York Processes to Ice Cry Habit and Nucleation during OWLeS IOP4 Alice Hsu Vertical Distribution and Washington University Monthly Variations of Biomass Burning Aerosols as Observed by the Micropulse Lidar during LASIC Ruby J Nelson The Efficiency of Ice University of Massachusetts Amherst Nucleating Particle Release through Sea Spray Aerosols and Various Bubble Sizes Laura M.
Lasic, "Surface modification of nanoparticles to oppose uptake by the mononuclear phagocyte system," Advanced Drug Delivery Reviews, vol.
By HORST LASIC. Wiener Studien zur Tibetologie und Buddhismuskunde, vol.