Intraocular minocycline for the treatment of ocular pythiosis

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A case of ocular pythiosis successfully treated with surgery and intraocular and oral minocycline is reported.


A 30-year-old man who wore corrective contact lenses traveled to Brazil and Colombia where he swam in salt and fresh waters while wearing contact lenses. He sought treatment at an emergency department after 2 weeks of suffering with a painful corneal ulcer, redness, and loss of vision in his right eye that had been treated at other centers with ophthalmic moxifloxacin for 10 days and with fortified topical antibiotics (amikacin and vancomycin) for 2 days. Examination using a slit lamp revealed a deep central corneal ulcer with surrounding white infiltrate, endothelial plaque, and hypopyon. Due to infection severity, the patient was admitted and received empirical antibiotic therapy and i.v. and topical antifungals. During the first corneal transplantation, the patient's original infection relapsed and was treated with voriconazole and liposomal amphotericin B intraocular injections. A subsequent infection developed, and a second keratoplasty was performed. One month after hospital admission, the patient was diagnosed with ocular pythiosis and therapy with oral minocycline was initiated. After severe infection relapse in the anterior chamber, the patient underwent a third penetrating keratoplasty, where minocycline intraocular injection was administered. After this intervention, complete infection control was achieved, and the patient was discharged 45 days after admission with oral minocycline and 1% cyclosporine and 0.3% ofloxacin eye drops.


A patient with ocular pythiosis was successfully treated with penetrating keratoplasty and 2 months of treatment with intracameral and oral minocycline.

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