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Revista científica ciencias de la salud

versão On-line ISSN 2664-2891

Resumo

ABENTE, Sonia et al. Keratitis by Acanthamoeba sp. in users of contact lenses: clinical cases. Rev. cient. cienc. salud [online]. 2019, vol.1, n.2, pp.51-57. ISSN 2664-2891.  https://doi.org/10.53732/rccsalud/01.02.2019.51.

Introduction. Amebic keratitis that often occurs in contact lens wearers are in a lot of pain and compromise vision. Symptomatology is non-specific and diagnosis is supported by laboratory studies based on culture and molecular methods for specific identification of Acanthamoeba. Case presentation. Three cases of amebic keratitis occur in contact lens wearers, two women and one male with pictures ranging from mild lesions to neoplasm, all contact lens wearers and a history of water exposure either in the shower or by storage contact lenses with cane water. The lesion is characterized by multifocal infiltrates, epithelopathy, central pseudodendrites and redial peurineritis. Microbiological methods detected the cultured parasite in a sample, while the molecular method was positive in two cases. Treatment was based on propamidine isethionate (Brolene), polyhexamethylbiguanide 0.02% and chlorhexidine 0.02%, inhibitors of DNA synthesis and cell wall formation. The evolution of the tables was of complete recovery in two cases, while in the third case keratitis was an added infection of a neoplasm that required surgical methods for treatment. The importance of this report is that amebic keratitis can simulate infectious tables of an inherited or fungal nature, and because of its low frequency and difficult confirmation for lack of proper laboratory methods, the Acanthamoeba as an etiological agent, and consequently there is a delay in diagnosis and treatment. Conclusions. Amebic keratitis can simulate infectious conditions of a herpetic or fungal viral nature, and due to its low frequency and difficult confirmation due to lack of appropriate laboratory methods, Acanthamoeba is not considered as an etiologic agent, and consequently There is a delay in diagnosis andtreatment.

Palavras-chave : Acanthamoebakeratitis; contact lenses; corneal ulcer.

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