How do you get acanthamoeba?

Acanthamoeba (a genus of free-living soil amoebae that produces no flagellate stage)

Acanthamoeba eye infections in contact lens wearers are rare but serious, and they often start because of improper lens handling and poor hygiene.To avoid Acanthamoeba keratitis, contact lens wearers...

This pus-producing condition is very painful. It is a common source of infection in people who wear soft or rigid contact lenses. It can be found in tap water, soil, and swimming pools