Acanthamoeba keratitis associated with contact lenses--United States.
D000293:Adolescent; D000328:Adult; D000562:Amebiasis / Q000209:etiology*; D003263:Contact Lenses, Hydrophilic / Q000009:adverse effects*; D005260:Female; D006801:Humans; D007634:Keratitis / Q000469:parasitology*; D008297:Male; D008875:Middle Aged; D014481:United States