Document Type

Article

Publication Date

2018

College/Unit

School of Medicine

Department/Program/Center

Ophthalmology

Abstract

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 Labo- ratories, 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 excel- lent refractive outcomes with a low incidence of complications.

Source Citation

Mifflin, M. D., Betts, B. S., Nguyen, J., & Pouly, S. (2018). High myopic photorefractive keratectomy outcomes with the Alcon Wavelight® EX500 excimer laser. Clinical Ophthalmology, Volume 12, 1041–1048. https://doi.org/10.2147/opth.s164110

Comments

© 2018 Mifflin et al. 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 (http://creativecommons.org/licenses/by-nc/3.0/). 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 (https://www.dovepress.com/terms.php).

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