The Disease

The Disease

What is Acanthanoeba keratitis?

Acanthamoeba keratitis (AK) is a rare infectious eye disease that can become severe and seriously debilitating. The infection is caused by Acanthamoeba spp. a common protozoan present in soil, air and water.

AK mostly occurs in contact lens wearers - over 85% of AK cases, but can also follow corneal injury. Incidence is low, approximately 1 in every 100,000  in the EU, however for patients it is a potentially devastating ocular infection causing vision deterioration and lead to blindness without treatment.



How Common is Acanthamoeba Keratitis?


Thanks to Fight for Sight and Prof John Dart 


What are the symptoms of AK? 

Symptoms vary patient to patient, and often resemble other eye infections. The most commonly reported symptoms include eye redness, blurred vision, light sensitivity, eye irritation, excessive tearing, and severe eye pain. The symptoms of Acanthamoeba keratitis can last for several weeks. If you are a contact lens wearer with these symptoms ask your clinician to consider AK as a diagnosis.