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Ocular larva migrans | |
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Other names | Ocular toxocariasis |
Puppies are a major source of environmental contamination with Toxocara eggs |
Ocular larva migrans (OLM), also known as ocular toxocariasis, is the ocular form of larva migrans syndrome. It occurs roundworm larvae invade the human eye. OLM infections in humans are caused by the larvae of Toxocara canis (dog roundworm), Toxocara cati (feline roundworm), Ascaris suum (large roundworm of pig), or Baylisascaris procyonis (raccoon roundworm).[1][2]
They may be associated with visceral larva migrans. Unilateral visual disturbances, strabismus, and eye pain are the most common presenting symptoms.