Ocular Changes caused by Angiostrongylus cantonensis : Report of two Cases

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Yosanan Yospaiboon
Arporn Prabriputaloong
Suchart Pariyanond


Angiostrongylus cantoensis is a metastrongylid lung worm of the rat, demonstrated to be the important etiologic agent of eosinophilic meningitis among Thai patients. Man is accidentally infected by consuming raw Pila snails, which are its intermediate host. It is proposed that the parasite required period of development in the brain, the migrated along the optic nerve and reaches the eye. There are some ocular changes caused by this worm migration, involving eyelid, vitreous, retina and optic nerve head. Two cases of intraocular Agiostrongyliasis are reported. Pan-uveitis and pigmentary retinal degeneration.


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Case report