[Possibility of the survival of free-living amoebae which cause keratitis in decontamination solutions used for the maintenance of contact lenses].
Because Acanthamoeba keratitis associated with contact lenses were described, several solutions used in stationary eye wash stations were contaminated by free-living amoebae. 0.9% sodium chloride rinsing solutions allowed cyst and trophozoite growth and only one solution for decontamination using hydrogen peroxide led to rapid elimination of cysts and trophozoites. Antiseptic solutions containing ammonium derivatives or chlorhexidine killed only trophozoites. Because of the constant contamination of tap water with Acanthamoeba cysts resistant to chlorine, the prevention of amoebic keratitis in wearers of contact lenses needs: use of sterile solutions for decontamination or rinsing, choice, if possible, of oxidizing solutions, suppression of tap water for rinsing.
Georges
P
P
Perrine
D
D
D000048:Acanthamoeba / Q000187:drug effects; D000562:Amebiasis / Q000517:prevention & control*; D000818:Animals; D002710:Chlorhexidine / Q000494:pharmacology; D003261:Contact Lenses; D006801:Humans; D006861:Hydrogen Peroxide / Q000494:pharmacology; D007634:Keratitis / Q000469:parasitology* / Q000517:prevention & control; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology; D012965:Sodium Chloride / Q000494:pharmacology
D000644:Quaternary Ammonium Compounds; D012965:Sodium Chloride; D006861:Hydrogen Peroxide; D002710:Chlorhexidine
Possibilité de survie d'amibes libres responsables de kératites dans les solutions décontaminantes proposées pour l'entretien des lentilles de contact.