"Has anyone heard of LASEK? I had this procedure done March of this year. I was wearing -7's (contacts) in both my eyes and standard LASIK was not a good option for me. I had very thin corneas. Dr. Yee of Herman Eye Center is performing LASEK on patients with thin corneas and it is virtually painless - at least in my case. He makes a flap out of your epithelium which is a lot safer and painless like I said. Even his patients that are candidates for standard LASIK are choosing to do LASEK because of the low risk of injury to your corneal tisssue. He is currently co-authoring with other doctors over seas about this procedure and to my knowledge is the only doctor in Houston and possibly the US performing this procedure. I am six months out and seeing 20/15. It is wonderful."
| PRK (Photorefractive Keratectomy) Newark, Ohio Shahin Shahinfar, MD | |
| PRK (Photorefractive Keratectomy) Anderson, South Carolina John Wilmeth, M.D. | |
| PRK (Photorefractive Keratectomy) Ontario, California Laser Eye Center, | |
| PRK (Photorefractive Keratectomy) Newport Beach, California Laser Eye Center, | |
| PRK (Photorefractive Keratectomy) Thousand Oaks, California Laser Eye Center, |

Photo-Astigmatic Refractive KERATECTOMY (PARK) can be used to treat low to moderate amounts of astigmatism. Since regular astigmatism is caused by the cornea being steeper in one direction, like a football, the excimer laser beam is shaped to remove more tissue in one direction than the other. The result is a more spherical cornea that allows light to focus more directly on the retina. PARK can usually be done in the same session as PRK or LASIK.
LASIK is an acronym for LASer In-situ Keratomileusis, which simply means "to shape the corena within using a laser." It corrects vision by reshaping the cornea (outer window of the eye) so that light rays focus more precisely on the retina, thereby reducing or eliminating refractive errors.
uses the excimer laser to correct low to moderate amounts of refractive errors. PRK treats nearsightedness by removing corneal tissue from the surface of the cornea, causing the central optical zone to flatten. This allows light rays to focus more directly on the retina, thereby reducing nearsightedness. The amount of tissue to be removed is determined by the amount of nearsightedness to be corrected. For most patients, only five to ten percent of the cornea is removed to obtain the desired results.
Related Subjects and Keywords: Keratectomy errors astigmatism
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