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Specimen Type

Contact lens and /or wash fluids / scalpel blades from corneal scrapes / needles & biopsies.

Specimen Container

Sterile container, e.g. white top universal pot (as above)

Special Instructions

Dry samples (i.e. samples other than contact lens fluid) should be covered in approximately 200ul of sterile saline.

Test Usage

The diagnosis of Acanthamoeba keratitis is made on the basis of the clinical picture and the detection of Acanthamoeba DNA from corneal scrapes or contact lens.


Sent to reference laboratory – Diagnostic Parasitology Laboratory, London School of Hygiene and Tropical Medicine

Processing Time

Up to 7 working days once received at the reference laboratory.

Urgent Specimen Instructions

Please contact the microbiology laboratory.

Useful Links

Diagnostic Parasitology Laboratory – London School of Hygiene & Tropical Medicine

Diagnostic Parasitology Laboratory – User Handbook

Diagnostic Parasitology Laboratory- Acanthamoeba Referral Form

Specimen Labelling Procedure
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