Related Experiment Video
Updated: May 15, 2026

Quantification of Acanthamoeba spp. Motility
Published on: September 20, 2024
[Acanthamoeba sp.: a case report in a non-contact lens wearer]
Claudia Menghi1, María C Caride, Claudia Gatta
1Laboratorio de Parasitología Clínica, Cátedra de Microbiología Clínica, Hospital de Clínicas, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires. Av. Córdoba 2351 (1113) Ciudad Autónoma de Buenos Aires, Argentina. cmenghi@fibertel.com.ar
Abstract:
Acanthamoeba sp. keratitis is generally related to wearing contact lenses, and, to a lesser extent, to contaminated water. It is characterized by reduced visual capacity and the presence of severe ocular pain. Clinically, it can be mistaken for a herpes infection. if it is not diagnosed, and timely and adequately treated, it can result in corneal perforation and, eventually, in vision loss. One of the few registered cases of Acanthamoeba sp. keratitis not related to the use of contact lenses is herein reported.
Insights
Acanthamoeba keratitis, an eye infection, can lead to vision loss. This case highlights a rare instance not linked to contact lens wear, emphasizing the need for broader diagnostic considerations.
Area of Science:
- Ophthalmology
- Infectious Diseases
- Microbiology
Background:
- Acanthamoeba keratitis is an infection of the cornea, often associated with contact lens use or contaminated water.
- Symptoms include decreased vision and severe eye pain, potentially mimicking herpes infections.
- Untreated cases can lead to corneal perforation and irreversible vision loss.
Observation:
- This report details a rare case of Acanthamoeba keratitis.
- The patient's infection was not associated with contact lens usage.
- This presentation deviates from the typical etiology of the disease.
Findings:
- Acanthamoeba keratitis can occur without the usual risk factors like contact lens wear.
- The clinical presentation may be misleading, requiring a high index of suspicion.
- Prompt diagnosis and treatment are crucial to prevent severe visual impairment.
Implications:
- Highlights the importance of considering Acanthamoeba keratitis in non-contact lens wearers presenting with severe keratitis.
- Underscores the need for accurate and timely diagnosis to avoid sight-threatening complications.
- Suggests a broader range of potential exposures or predispositions for this infection.
Related Concept Videos
Angle Closure Glaucoma: Treatment
Microbiome of the Eye
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...
Glaucoma: Overview
