Acanthamoeba Keratitis Infection

Acanthamoeba keratitis infection is a rare but serious eye infection caused by the amoeba Acanthamoeba. Typically affecting individuals who wear contact lenses, especially those using improper lens care practices, this infection can lead to significant visual impairment if not promptly diagnosed and treated. Symptoms include severe eye pain, redness, blurred vision, and light sensitivity. The amoeba can invade the cornea, causing a ring-like ulcer that may be mistaken for other corneal infections initially. Diagnosis of Acanthamoeba keratitis is challenging and often requires specialized laboratory techniques such as confocal microscopy or polymerase chain reaction (PCR) testing. Treatment involves aggressive topical and systemic antimicrobial therapy, including medications like propamidine and biguanides. In some cases, corneal transplantation may be necessary to restore vision, and long-term follow-up is crucial to monitor for recurrence.