Bagherian, Homa, Zarei-Ghanavati, Siamak, Momeni-Moghaddam, Hamed, Wolffsohn, James S., Sedaghat, Mohammad Reza, Naroo, Shehzad A. and Monfared, Naeemeh (2020). Masked comparison of two silicone hydrogel bandage contact lenses after photorefractive keratectomy. Contact Lens and Anterior Eye, 43 (3), pp. 244-249.
Abstract
Purpose: To compare the efficiency and safety of two bandage contact lenses after photorefractive keratectomy (PRK). Methods: In this double-blind study, 45 patients (90 eyes) received PRK in both eyes and wore bandage contact lenses (BCLs), PureVision (Bausch & Lomb, Rochester, NY, USA) in one eye and PureVision2 (Bausch & Lomb, Rochester, NY, USA) in the other eye, randomly assigned. The medication regimen after surgery was the same for both eyes. The epithelial defect's size, conjunctival hyperemia and lens centration were graded objectively using slit-lamp biomicroscopy on days 1, 3 and 5 after surgery. Also ocular symptoms of discomfort including tearing, photophobia, foreign body sensation and visual fluctuations were assessed subjectively at each visit. Results: The mean epithelial defect size on the first day after operation was similar in eyes fitted with PureVision (30.08 ± 5.30 mm²) and PureVision2 (30.25 ± 5.72 mm2) lenses. (p = 0.79) Contact lens deposits and bulbar hyperaemia on days 1 and 3 after PRK were similar between the two eyes, but were significantly greater on day 5 for PureVision2 lenses. (p = 0.02; p = 0.04 respectively) There was no difference in contact lens decentration, and discomfort symptoms including pain, tearing, foreign body sensation, photophobia and visual fluctuations between the eyes fitted with PureVision and PureVision2. (p > 0.05) Conclusions: PureVision and PureVision2 contact lenses are equivalent as bandage lenses in important aspects such as corneal re-epithelialization and subjective comfort., although PureVision2 led to a higher incidence of contact lens deposits and conjunctival hyperemia early post-PRK.
Publication DOI: | https://doi.org/10.1016/j.clae.2020.02.005 |
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Divisions: | College of Health & Life Sciences > School of Optometry > Optometry |
Funding Information: | The authors would like to thank the participants who made this study possible and the Deputy of Research of Mashhad University of Medical Sciences. (Ethic code: 940094). |
Additional Information: | © 2020, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
Uncontrolled Keywords: | Balafilcon A,Bandage contact lens,Photorefractive keratectomy PRK,Silicone hydrogel,Ophthalmology,Optometry |
Publication ISSN: | 1476-5411 |
Last Modified: | 15 Aug 2024 17:05 |
Date Deposited: | 12 Mar 2020 13:29 |
Full Text Link: | |
Related URLs: |
http://www.scop ... tnerID=8YFLogxK
(Scopus URL) https://www.sci ... 367048420300230 (Publisher URL) |
PURE Output Type: | Article |
Published Date: | 2020-06 |
Published Online Date: | 2020-02-23 |
Accepted Date: | 2020-02-12 |
Authors: |
Bagherian, Homa
Zarei-Ghanavati, Siamak Momeni-Moghaddam, Hamed Wolffsohn, James S. ( ![]() Sedaghat, Mohammad Reza Naroo, Shehzad A. ( ![]() Monfared, Naeemeh |
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