"Silent" ocular toxocariasis
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Updated: Oct 27, 2026

Obtaining Highly Purified Toxoplasma gondii Oocysts by a Discontinuous Cesium Chloride Gradient
Published on: November 3, 2009
Abstract:
We describe an unusual presentation of ocular Toxocara infection. On examination of a 52-year-old asymptomatic male with no previous relevant general or ocular history, a lesion suggestive of a scarred Toxocara worm was found in his right fundus, medical workup revealed normal blood count and blood chemistry. Serologic tests were negative for Toxoplasma and Echinococcus and in 1:4 dilution were positive for Toxocara. The patient appeared to have a subclinical Toxocara infection, resulting in the present picture.
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