As a result, some forms of refractive surgery ( such as photorefractive keratectomy ) can cause traditional intraocular pressure measurements to appear normal when in fact the pressure may be abnormally high.
32.
Reason : Photorefractive Keratectomy is not the same as the LASEK ( Laser-Assisted Sub-Epithelial Keratectomy ) are different procedures and LASEK should not be listed under the Photorefractive Kerotomy.
33.
Reason : Photorefractive Keratectomy is not the same as the LASEK ( Laser-Assisted Sub-Epithelial Keratectomy ) are different procedures and LASEK should not be listed under the Photorefractive Kerotomy.
34.
The pot of gold shining in front of both groups is a relatively new _ and expensive _ laser procedure, known as photorefractive keratectomy, that corrects nearsightedness by slightly flattening the cornea.
35.
More than 60 million Americans are myopic, or near-sighted, although medical device analysts expect only a fraction of them to undergo the laser treatment, called photorefractive keratectomy ( PRK ).
36.
FDA officials earlier pointed out that a five-center U . S . study showed less success for the procedure, known as photorefractive keratectomy, than did the company's international studies.
37.
Ultraviolet lasers have applications in industry ( laser engraving ), medicine ( dermatology, and keratectomy ), chemistry ( free air secure communications, computing ( optical storage ) and manufacture of integrated circuits.
38.
Corneal optical aberrations after photorefractive keratectomy with a larger ablation zone and a transition zone are less pronounced and more physiologic than those associated with first-generation ( 5 mm ) ablations with no transition zone.
39.
Only Visx and Summit Technology Inc ., have approval from the Food and Drug Administration to use their lasers in the procedure known as photorefractive keratectomy, which uses a laser to change the shape of the cornea.
40.
The excimer emergence first spawned a procedure known as PRK ( photorefractive keratectomy ) in which the cornea's outer layer was gently scraped away with a scalpel and the laser then used to reshape the tissue beneath.
