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excision of a portion of the cornea; kerectomy.
photorefractive keratectomy a procedure to correct errors of refraction in the eye by using an excimer laser to remove a portion of the anterior part of the cornea, which changes the refraction by creating a new radius of curvature.
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


A gene on chromosome 1p34.1 that encodes a serine/threonine-protein kinase involved in cell cycle regulation, response to stress, and Golgi disassembly.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


Photorefractive keratectomy, see there.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.


Abbreviation for photorefractive keratectomy.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Photorefractive keratectomy (PRK)

A procedure that uses an excimer laser to make modifications to the cornea and permanently correct myopia.
Mentioned in: Myopia, Radial Keratotomy
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Corneal haze is more common after PRK than after LASIK due to more activation of corneal fibroblasts and keratocytes following PRK [34].
Risk factors for ectasia following PRK were those of the ERSS (Table 1) [13] and the calculated PTA [15, 16].
In addition, the maximum ablation amount in the PRK group and the maximum lenticule thickness in the SMILE group were recorded as the amount of stromal tissue removed.
Most studies, especially in cases that used Mitomycin C after surgery, short-term results are investigated and only few studies have examined long-term results of PRK surgery by using Mitomycin C.
MATERIALS AND METHODS: A retrospective and prospective non comparative single surgeon study was done on 30 eyes of 20 patients; 8 men and 12 women; using photo refractive keratectomy (PRK) as a primary procedure to correct myopia and myopic astigmatism.
Options include the Ford Fiesta 1.5TDCi Zetec Prk with Quickclear heated windscreen, available with no advance payment, and the Volvo V40 1.6TD Cross Country SE S/S with climate control, available at PS299 advance payment.
The DIG-labeled prk probe was then bound to the chromosomes and viewed with a fluorescent microscope.
My PRK came with a thin nylon sling and a lightweight, water-resistant nylon case with a compartment for a box of ammo.
“People with thin corneas should strongly consider not having LASIK surgery, but instead explore alternatives such as PRK,” Dr.
They also checked for vision-improvement procedures, such as LASIK eye surgery and photorefractive keratectomy (PRK).
John Senden (Aus) lost to Bae Sang- moon (Prk) 1 down.