Back to Journals » Clinical Ophthalmology » Volume 12

High myopic photorefractive keratectomy outcomes with the Alcon Wavelight® EX500 excimer laser
Authors Mifflin MD, Betts BS, Nguyen J, Pouly S
Received 30 January 2018
Accepted for publication 7 April 2018
Published 6 June 2018 Volume 2018:12 Pages 1041—1048
DOI https://doi.org/10.2147/OPTH.S164110
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 2
Editor who approved publication: Dr Scott Fraser
Mark D Mifflin,1 Brent S Betts,2 Jason Nguyen,3 Severin Pouly4
1Department of Ophthalmology and Visual Sciences, John A. Moran Eye Center, University of Utah, Salt Lake City, UT, USA; 2Intermountain Eye and Laser Center, Boise, ID, USA; 3Department of Ophthalmology, West Virginia University School of Medicine, Morgantown, WV, USA; 4Little Rock Eye Clinic, Little Rock, AR, USA
Purpose: To present refractive outcomes from consecutive cases with the Alcon Wavelight® EX500 excimer laser using photorefractive keratectomy (PRK) in patients with high myopia.
Methods: A retrospective chart review of consecutive cases of high myopic eyes (≥6.0 Diopters [D]) undergoing PRK with the Alcon Wavelight EX500 excimer laser (Alcon Laboratories, Fort Worth, TX, USA) was done. Moderately high myopic eyes (6.0 to <8.0 D [6 D]) were compared with high myopic eyes (8.0 D or greater [8 D]). Outcomes measured included pre- and postoperative refractive error, uncorrected distance visual acuity (UDVA), corrected distance visual acuity, spherical equivalent correction (SEQ), haze incidence, and intraocular pressure (IOP).
Results: One hundred eighteen eyes of 63 patients were evaluated, with 59 eyes having 12 months of follow-up. Thirty-one eyes of 19 patients had 8.0 D or more of myopia. Twelve-month average LogMAR UDVA was –0.06 (20/17) for the 6 D group and –0.08 (20/16) for the 8 D group. Average 12-month SEQ was –0.18 D and preoperatively was –7.52 D for the 6 D group and –0.09 and –9.02 in the 8 D group. Sixty-five eyes (86%) and 24 eyes (96%) had an SEQ within 0.50 D of emmetropia at 3 months in the 6 and 8 D groups, respectively. One eye had visually significant haze developed at 8 months. Three eyes had IOP elevation that resolved with addition of short-term topical IOP-lowering medication.
Conclusion: High myopic PRK with the Alcon Wavelight EX500 excimer laser yields excellent refractive outcomes with a low incidence of complications.
Keywords: high myopia, PRK, wavefront-optimized, refractive surgery
This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License.
By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.