StreamLight Single-Step Transepithelial Photorefractive Keratectomy (PRK) for Myopia and Myopic Astigmatism

To report the refractive outcomes of StreamLight transepithelial photorefractive keratectomy (PRK). A retrospective case series was conducted which included a total of 205 eyes of 109 patients who underwent StreamLight transepithelial PRK using the Alcon Wavelight EX500 excimer laser. All eyes had m...

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Published in:Journal of ophthalmology 2024-11, Vol.2024 (1), p.5597457
Main Authors: Gunn, David J, Cox, Rebecca A
Format: Article
Language:English
Subjects:
Ablation
Astigmatism
Contact lenses
Cornea
Eye surgery
Laboratories
Laser surgery
Lasers
Myopia
Patients
Photorefractive keratectomy
Polyvinyl alcohol
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Cox, Rebecca A
description To report the refractive outcomes of StreamLight transepithelial photorefractive keratectomy (PRK). A retrospective case series was conducted which included a total of 205 eyes of 109 patients who underwent StreamLight transepithelial PRK using the Alcon Wavelight EX500 excimer laser. All eyes had myopia or myopic astigmatism, and the preoperative spherical equivalent (SEQ) ranged from -0.63D to -7.25D. The primary postoperative outcomes were UDVA, CDVA and subjective refraction measured at least 3 months postoperatively. Postoperatively, 196 eyes (95.6%) had a UDVA of 20/20 or better. The mean SEQ was -0.05 ± 0.31D and 189 eyes (92.2%) were within ±0.50D of the target SEQ. The mean refractive astigmatism was -0.28 ± 0.27D, and 181 eyes (88.3%) had ≤ 0.50D of astigmatism. The mean safety and efficacy indices were 1.01 ± 0.08 and 0.97 ± 0.12, respectively. Eight eyes lost 1 line of CDVA. Six of these were noted to have significant dry eyes and 2 had corneal haze. No eye lost two or more lines of CDVA. StreamLight transepithelial PRK results in excellent refractive outcomes for myopia and myopic astigmatism.
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subjects Ablation
Astigmatism
Contact lenses
Cornea
Eye surgery
Laboratories
Laser surgery
Lasers
Myopia
Patients
Photorefractive keratectomy
Polyvinyl alcohol
title StreamLight Single-Step Transepithelial Photorefractive Keratectomy (PRK) for Myopia and Myopic Astigmatism
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