When a Parasite Impairs Vision

The protozoan parasite Toxoplasma Gondii can cause significant inflammation and subsequent scarring which can impair vision.  Ocular toxoplasmosis can be congenital or acquired, and worldwide, toxoplasmosis is the most common cause of inflammation in the back of the eye.

Congenital toxoplasmosis is transmitted from the mother to the baby during pregnancy.  This usually results in retinal scars in both eyes.  Strabismus, microphthalmia, cataract, optic atrophy and nystagmus may also be associated with congenital cases.

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