Abstract
We report the first 2 cases of bacterial keratitis resistant to fourth-generation fluoroquinolones after laser in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK). The first patient had Pseudomonas aeruginosa keratitis after PRK despite treatment with moxifloxacin. The second patient was on gatifloxacin post-LASIK when she had methicillin-resistant Staphylococcus aureus (MRSA) keratitis diagnosed. In both cases, culture susceptibilities showed isolates resistant to moxifloxacin and gatifloxacin, and treatment with topical aminoglycosides and surgical intervention was necessary to effect a cure. These cases show the potential limitations in the coverage of these antibiotics.
Publication types
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Case Reports
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Research Support, Non-U.S. Gov't
MeSH terms
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Adult
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Aza Compounds / pharmacology
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Aza Compounds / therapeutic use
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Bacteria / drug effects
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Bacteria / isolation & purification
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Cornea / microbiology
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Corneal Ulcer / drug therapy
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Corneal Ulcer / microbiology*
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Drug Resistance, Bacterial*
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Drug Therapy, Combination
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Eye Infections, Bacterial / drug therapy
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Eye Infections, Bacterial / microbiology*
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Female
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Fluoroquinolones / pharmacology
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Fluoroquinolones / therapeutic use*
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Gatifloxacin
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Humans
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Keratomileusis, Laser In Situ
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Keratoplasty, Penetrating
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Lasers, Excimer
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Microbial Sensitivity Tests
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Moxifloxacin
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Myopia / surgery*
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Photorefractive Keratectomy
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Postoperative Complications*
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Pseudomonas Infections / drug therapy
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Pseudomonas Infections / microbiology*
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Quinolines / pharmacology
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Quinolines / therapeutic use
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Staphylococcal Infections / drug therapy
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Staphylococcal Infections / microbiology*
Substances
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Aza Compounds
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Fluoroquinolones
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Quinolines
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Gatifloxacin
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Moxifloxacin