Annals of Optometry and Contact Lens 2015;14(2):79-83.
Published online June 25, 2015.
Comparison of Pain after Photorefractive Keratectomy between Two Kinds of Silicone Hydrogel Therapeutic Contact Lenses
Kyung Min Koh, Sang Youn Han, Young A Kwon, Sang Wroul Song, Byoung Yeop Kim, Yong Ran Kim, Yong Ho Sohn, Jae Lim Chung
Myung-Gok Eye Research Institute, Department of Ophthalmology, Kim's Eye Hospital, Konyang University College of Medicine, Seoul, Korea
Received: 13 March 2015   • Revised: 21 May 2015   • Accepted: 28 May 2015
Abstract
Purpose: To compare of the pain after photorefractive keratectomy (PRK) according to two kinds of silicone hydrogel contact lenses.
Methods: 92 eyes of 46 patients who underwent PRK surgery were prospectively investigated. Each patient was randomly assigned senofilcon A in one eye and lotrafilcon B in the other eye. Pain score (0-10) was assessed at postoperative day 0, 1, 2, 3 and 4 using visual analogue scale.
Results: The pain scores (mean ± SD) of senofilcon A and lotrafilcon B were 1.6 ± 1.4, 2.2 ± 1.5 on postoperative day (POD) #0 (p = 0.0029), 2.9 ± 1.5, 3.7 ± 1.5 on POD # 1 (p = 0.009), 2.1 ± 1.2, 2.2 ± 1.4 on POD #2 (p = 0.6208), 0.5 ± 0.7, 0.7 ± 0.8 on POD #3 (p = 0.8375), and 0.1 ± 0.3, 0.1 ± 0.3 on POD #4 (p = 0.1332) respectively.
Conclusions: Senofilcon A contributed to reduce postoperative pain effectively in patients undergoing PRK due to lens design, material and moisture-rich properties.
Ann Optom Contact Lens 2015;14(2):79-83
Key Words: Eye pain, Hydrophilic contact lens, Lotrafilcon B, Photorefractive keratectomy, Senofilcon A
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