نتایج جستجو برای: photorefractive keratectomy
تعداد نتایج: 17246 فیلتر نتایج به سال:
PURPOSE To evaluate the long-term side effects of mitomycin C (MMC) assisted photorefractive keratectomy (PRK) on corneal keratocytes of highly myopic eyes. METHODS Twenty-eight patients with bilateral myopia from -7.00 to -14.25 diopters (D) underwent PRK on both eyes, one eye of each patient received topical application of 0.02% MMC for 2 minutes immediately after the PRK procedure. Corneal...
purpose : to report a case of bilateral dense ring-shaped marginal keratitis after photorefractive keratectomy (prk) case report : a 44-year-old man developed bilateral dense ring-shaped marginal keratitis after prk. the patient had moderate to severe meibomian gland dysfunction preoperatively that was treated incompletely. he was treated with mild topical antibiotics, topical and systemic ster...
BACKGROUND A return toward toward photorefractive keratectomy has occurred due to better corneal stability and fewer corneal flap complications; however, pain remains a major drawback of the procedure. Currently, clinical pain control measures focus on the administration of pain medications, which may delay corneal epithelial healing and has, occasionally, led to serious corneal toxicity. OBJ...
BACKGROUND In astigmatism clinical trials where more complex measurements are common, especially in nonrandomized small sized clinical trials, there is a demand for the development and application of newer statistical methods. METHODS The source data belonged to a project on astigmatism treatment. Data were used regarding a total of 296 eyes undergoing different astigmatism treatment modaliti...
BACKGROUND The purpose of this work is to report our experience using loteprednol 0.5% for routine prophylaxis after photorefractive keratectomy in an academic refractive surgery center. MATERIALS AND METHODS Photorefractive keratectomy was performed on 579 eyes from 316 patients in this retrospective chart review of patients treated postoperatively with either fluorometholone 0.1% (273 eyes)...
purpose : although applying mitomycin c (mmc) during photorefractive keratectomy (prk) has shown to reduce postoperative corneal haze but there is considerable evidence of mmc toxicity in the literature and concerns exist regarding side effects and long-term complications. we conducted this study to compare the efficacy of mmc 0.02% and 0.01% in prevention of haze after prk. methods : 210 eyes ...
purpose : infectious corneal ulceration is a serious potential complication of prk. although gram positive organisms are the most common pathogens, in this study we present the first case of gram negative bacilli keratitis, alcaligenes, after prk. case report : a 22-year-old man was referred to our institution due to infection following corneal refractive surgery. three days after surgery, the ...
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