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PRK information and comparison to Lasik, All-Laser Lasik, PRK, LASEK, Epi-Lasik, CK, RLE, and P-IOL


Click to see video of PRK. Lasik applies laser energy under a flap of corneal tissue to correct nearsighted vision, farsighted vision, and astigmatism. Click for video.

 

As with nearly all excimer laser based refractive surgery, hyperopic correction can be performed with both conventional ablation and wavefront-guided custom ablation.


This article will be published soon. See LASEK for similar procedure.
 

If you are ready to choose a doctor to be evaluated for conventional or custom wavefront Lasik, All-Laser Lasik, PRK, LASEK, Epi-Lasik, NearVision CK, RLE, or any refractive surgery procedure, we highly recommend you consider a doctor who has been evaluated and certified by the USAEyes nonprofit organization. Locate a USAEyes Evaluated & Certified Lasik Laser Eye Surgery Doctor.

If this article did not fully answer your questions, use our free Ask Lasik Expert patient forum.

Video courtesy University of Illinois Eye & Ear Infirmary.


Current PRK Medical Journal News...

Photorefractive keratectomy with mitomycin C after deep anterior lamellar keratoplasty for keratoconus.

Related Articles

Photorefractive keratectomy with mitomycin C after deep anterior lamellar keratoplasty for keratoconus.

Cornea. 2008 May;27(4):417-20

Authors: Leccisotti A

PURPOSE:: To evaluate the safety and efficacy of photorefractive keratectomy (PRK) with intraoperative mitomycin C (MMC) after deep anterior lamellar keratoplasty (DALK) for keratoconus. METHODS:: This was a prospective, noncomparative single-surgeon study. Eyes with compound myopic astigmatism after DALK with a spherical equivalent (SE) between -3 and -10 D were treated by PRK. After ablation, MMC 0.2 mg/mL was placed on the stromal bed for 45 seconds. A 6% undercorrection was planned. RESULTS:: The study was completed on 10 eyes of 10 patients. The preoperative mean SE was -4.98 +/- 1.75 (SD) D. At 10 months after surgery, the mean SE was 0.28 +/- 0.61 D, and the mean defocus equivalent was 1.08 +/- 0.58 D. Postoperatively, 9 eyes were within 2 D, 6 were within 1 D, and 1 eye was within 0.5 D of defocus equivalent. The preoperative mean best spectacle-corrected visual acuity (BSCVA) was 0.68 +/- 0.15 D, and at 10 months it was 0.78 +/- 0.13 D. The 95% confidence interval for the mean difference of pre- and postoperative BSCVA was 0.02-0.17 (P < 0.05). No lines of BSCVA were lost. The mean postoperative uncorrected visual acuity was 0.55 +/- 0.1. The safety index was 1.15, and the efficacy index was 0.81. Corneal haze was grade 0 in 8 eyes and grade 0.5 in 2 eyes. Mean epithelialization time was 4.1 +/- 0.99 days. Preoperative mean endothelial cell density was 2320 +/- 184 cells/mm, and at 10 months it was 2284 +/- 175 cells/mm. CONCLUSIONS:: PRK with MMC can safely and effectively correct myopia and regular myopic astigmatism after DALK. Undercorrection should be planned to compensate for the overcorrecting effect of MMC.

PMID: 18434844 [PubMed - in process]

 

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Last updated Tuesday, May 06, 2008

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