FAQs About Acanthamoeba
What is Acanthamoeba?
Acanthamoeba is a microscopic amoeba that is relatively common in the environment. This amoeba has been found in natural and pool water, soil, air, cooling towers, heating, ventilation and air conditioner systems, sewage systems, and drinking water systems. Most people will be exposed to Acanthamoeba during their lifetime and will not get sick.
How common is Acanthamoeba infection?
Acanthamoeba keratitis primarily affects otherwise healthy people, most of whom wear contact lenses. In the United States, an estimated 85 percent of cases occur in contact lens users. The incidence of the disease in the United States is approximately one to two cases per million contact lens users. Contact lens wearers who practice proper lens care and non-contact lens wearers can still develop the infection.
Can Acanthamoeba spread from person to person?
No known cases of Acanthamoeba keratitis being spread from one person to another have been reported.
Is it possible to get infected if you don't wear contact lenses?
Yes. And people who practice good lens care can also be infected.
What are the treatment options?
Early diagnosis is essential for effective treatment of Acanthamoeba keratitis. Several prescription eye medications are available for treatment. However, the infection can sometimes be difficult to treat, and the best treatment regimen for each patient should be determined by an eye doctor. If you suspect your eye might be infected with Acanthamoeba, see an ophthalmologist immediately.
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