Kératite à Acanthamoeba. Etude clinique, histologique et ultrastructurale.

: Acanthamoeba keratitis is a rare but very severe necrotizing stromal keratitis due to a non-parasitic free-living soil and freshwater amoeba. It affects more readily soft and hard lens wearers. It is often clinically mistaken for herpetic keratitis because of the similarity of the signs and the difficulty in performing the specific microbiological tests. This is the reason why the diagnosis is most often made at the time of penetrating keratoplasty and histological study of the buttons with special stains. Medical treatment is effective only when starting at the beginning of the disease.