Francesco Carones

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PURPOSE To evaluate the results of the prophylactic use of mitomycin-C to inhibit haze formation after excimer laser photorefractive keratectomy (PRK) for medium and high myopia in eyes that were not good candidates for laser in situ keratomileusis (LASIK). SETTING Carones Ophthalmology Center, Milan, Italy. METHODS This prospective randomized masked(More)
BACKGROUND We report the results of a prospective study conducted in Italy to evaluate the efficacy, safety, predictability, and complications of excimer laser photorefractive keratectomy for the correction of myopia. METHODS. Photorefractive keratectomy was performed on 1236 myopic sighted eyes in 16 centers, using the Summit Excimed 193 nm excimer laser.(More)
PURPOSE To investigate corneal nerve damage and its subsequent regeneration after excimer laser photokeratectomy in rabbit eyes. METHODS Corneal photokeratectomy was performed on the right eyes of 34 pigmented rabbits, while the left eyes were used as a control. A Summit UV 200 excimer laser (Summit Technology, Waltham, MA) was used to produce a 100(More)
This is the first report of a severe case of Mycobacterium chelonae keratitis; it occurred in a 26-year-old man after he had undergone excimer laser photorefractive keratectomy for the correction of severe myopia, once the epithelium was already healed. The diagnosis was made by culture results and acid-fast staining of corneal scrapings. Topical(More)
BACKGROUND The aim of this study was to assess the role of surgeons' skill on the final results of photorefractive keratectomy (PRK) in the correction of myopia. METHODS We evaluated the results of 160 consecutive unilateral treatments performed by four surgeons in a multicenter study group, with a one year follow up. Eighty-eight patients were males(More)
PURPOSE To evaluate the results of photorefractive keratectomy (PRK) enhancements in eyes previously treated by myopic laser in situ keratomileusis (LASIK) showing an undercorrection due to either a refractive regression or a primary undercorrection, when an in-the-bed enhancement was not advisable because of residual stromal thickness limitations. DESIGN(More)
PURPOSE To evaluate whether the refractive changes induced by excimer laser surgery can be accurately measured by corneal ray tracing performed by a combined rotating Scheimpflug camera-Placido-disk corneal topographer (Sirius). SETTING Private practices. DESIGN Evaluation of diagnostic test. METHODS This multicenter retrospective study comprised(More)
PURPOSE To clarify the confusion resulting from the use of slightly different refractive indices in calculations related to optical modeling of the cornea for refractive surgery, corneal diagnostics, and cataract surgery. SETTING Scientific Institute H.S. Raffaele, Milan, Italy. METHODS The cornea is represented as a centered optical system composed by(More)
PURPOSE To assess whether a chemical debridement method for excimer laser photorefractive keratectomy may lead to better refractive and visual results than the standard method which involves the use of a blunt blade to scrape off the epithelium. METHODS Ninety-three eyes with a mean attempted correction of -5.72 +/- 2.47 D were debrided using a surgical(More)