These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Photorefractive keratectomy for myopia of 6 to 12 diopters.
    Author: Chan WK, Heng WJ, Tseng P, Balakrishnan V, Chan TK, Low CH.
    Journal: J Refract Surg; 1995; 11(3 Suppl):S286-92. PubMed ID: 7553109.
    Abstract:
    To conduct a prospective, nonrandomized clinical trial to assess the efficacy, stability and safety of the use of excimer laser photorefractive keratectomy (PRK) to correct myopia of greater than -6.00 diopters (D) in Singapore. Two hundred thirty-three eyes of 176 patients with a mean preoperative spherical equivalent refraction of -8.70 +/- 2.3 D (range, -5.75 D to -18.13 D) underwent PRK with a 193nm ArF excimer laser (ExciMed, Summit) for myopic corrections of between -6.20 D and -11.90 D. The first 66 of 233 eyes that reached at least 1 year of postoperative follow up are reported. One year postoperatively, the mean manifest spherical equivalent refraction was -1.50 D +/- 1.90 D (range -6.25 D to +3.25 D); 34% of eyes were within +/- 1.00 D of attempted correction; uncorrected visual acuity was 20/40 or better in 75% of eyes. No eyes lost two or more Snellen lines of spectacle corrected visual acuity. Central corneal haze was mild in 20% of eyes and moderate in 3% of eyes. Five eyes developed ocular hypertension that subsequently resolved with treatment. Excimer laser PRK is reasonably effective and safe in the treatment of -6.00 D to -12.00 D of myopia. However, it is less accurate than PRK in eyes with low to moderate myopia and is more likely to result in significant corneal haze.
    [Abstract] [Full Text] [Related] [New Search]