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  • Title: Epithelial healing rates with topical ciprofloxacin, ofloxacin, and ofloxacin with artificial tears after photorefractive keratectomy.
    Author: Patel GM, Chuang AZ, Kiang E, Ramesh N, Mitra S, Yee RW.
    Journal: J Cataract Refract Surg; 2000 May; 26(5):690-4. PubMed ID: 10831898.
    Abstract:
    PURPOSE: To determine whether corneal epithelial healing differs after the use of topical ciprofloxacin alone, topical ofloxacin alone, or topical ofloxacin with artificial tears in patients having photorefractive keratectomy (PRK). SETTING: Department of Ophthalmology and Visual Science, The University of Texas Health Science Center at Houston, Houston, Texas, USA. METHODS: Eighteen patients (6 women, 12 men) with moderate myopia (-1.50 to -6.00 diopters [D]) had standardized PRK. Patient age ranged from 25 to 62 years. The 28 eyes (16 right, 12 left) were randomized into 3 treatment groups: ofloxacin alone, n = 9 eyes; ciprofloxacin, n = 9 eyes; and ofloxacin with Refresh Plus, n = 10 eyes. The drugs were administered immediately after surgery and then every 6 hours. Video recordings of the corneal wounds stained with fluorescein were performed at 8:00 AM and 4:00 PM using a video slitlamp camera with a cobalt-blue light until the wound completely healed. The videotaped images were recorded and analyzed by a computer planimetry program. Wound areas were recorded and compared among the 3 drugs. The square-root transformation was applied to the wound area to obtain a constant healing rate. Statistical comparisons were analyzed using an analysis of variance test. RESULTS: Mean recovery time was 82.67 hours +/- 14.42 (SD) in the ofloxacin eyes, 120.89 +/- 34.05 hours in the ciprofloxacin eyes, and 76.80 +/- 19.30 hours in the ofloxacin with Refresh Plus eyes. Mean healing rate was 0.66 +/- 0.17 hours, 0.54 +/- 0.16 hours, and 0.67 +/- 0.15 hours, respectively. The healing rate was significantly higher in the ofloxacin with Refresh Plus eyes than in the ciprofloxacin eyes (P < .0001). There was no significant difference between the ofloxacin eyes and the ofloxacin with Refresh Plus eyes (P = .42). CONCLUSION: Ofloxacin with Refresh Plus and ofloxacin alone had a more positive effect on epithelial healing than ciprofloxacin. The ciprofloxacin eyes were significantly more prone to impaired or delayed wound healing and to the development of corneal haze.
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