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Two patients who had excimer laser photorefractive keratectomy (PRK) for myopia developed bacterial keratitis, one from Staphylococcus epidermidis and the other with a negative culture. Both were treated with topical antimicrobial agents. One eye recovered an uncorrected visual acuity of 20/20. The other was left with a moderate subepithelial scar and an uncorrected visual acuity of 20/150.
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Amayem et al. (1996) studied this question.
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