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Toxocariasis Uveitis

Introduction

Toxocara Canis can be obtained through ingestion of faeces of infected animals.
- Larvae is released in the intestines, which inter circulation
- Migration causes inflammation
- Can enter major organs, causing systemic toxocariasis
- Larvae migration to eye causes ocular toxocariasis

Dead Giveaways

Fundus Appearance

  • Characterised by posterior pole and peripheral granuloma

  • Unilateral most of the time

  • Granulomas in the posterior pole or located peripherally

  • Associated pigmentary changes and/or retinal traction

  • It's most unique feature is the migration of granulomas, which can be continuous or discontinuous

    Shows some ERMs. Additionally, shows the movement of the granuloma, which is a fairly big giveaway
    Shows some ERMs. Additionally, shows the movement of the granuloma, which is a fairly big giveaway
    Can also manifest with vitreous/vitreoretinal lesions which may have a membrane extending from the posterior pole
    Can also manifest with vitreous/vitreoretinal lesions which may have a membrane extending from the posterior pole
    By Eye Serbia, shows the consequence of ocular toxocariasis, which is nematode endophthalmitis
    By Eye Serbia, shows the consequence of ocular toxocariasis, which is nematode endophthalmitis

diagnostic features

Progression:

  • Vision loss from associated vitritis, ERM, macula oedema, retinal detachment.

  • Severe inflammation can cause nematode endophthalmitis, which is a panuveitis

2025, made by Eric Qin. UNSW. SOVS

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