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Treatment of refractory acanthamoeba keratitis and experimental studies Ritsuko Yamada 1 , Satoki Ueno 1 , Sakiko Minami 1 , Tatsuma Watanabe 1 , Toyokazu Miyamoto 2 , Isao Harasawa 2 , Kohichiro Fujita 3 , Setsuko Tsukidate 3 , Seiichi Yamada 3 1Department of Ophthalmology, St. Marianna University School of Medicine. 2Laboratory of Bacteriol, St. Marianna Univ Sch of Med 3Dept of Medical Zoology, Tokyo Meidcal and Dental Univ Sch of Med pp.543-547
Published Date 2000/4/15
DOI https://doi.org/10.11477/mf.1410906769
  • Abstract
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We observed bilateral Acanthamoeba keratitis in 6 females. All were wearers of soft contact lens. Acanthamoeba (group II) was detected in the corneal smear or its culture in all the cases. All the cases resulted in improved visual acuity following corneal abrasion, topical micronazole and sisomicin, and systemic tinidazole. We also induced experimental keratitis by inoculating the encysted amoeba in the cornea of 4 colored rabbits. Histologically, trophozoites were observed in the cornea, conjunctiva, ciliary body and the vitreous. Their presence in ocular tissues other than the cornea appeared to be one of the major causes for Acanthamoeba keratitis to run a protracted course and to withstand topical medications. The findings show the importance of early detection and use of adequate systemic medication for this disease.


Copyright © 2000, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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