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Updated: May 12, 2026
06:33
3-D Imaging and Analysis of Neurons Infected In Vivo with Toxoplasma gondii
Published on: December 9, 2014
Toxocariasis of the optic disc
Yong Joon Kim1, Chan Hee Moon, Jee Ho Chang
1Department of Ophthalmology, Soonchunhyang University College of Medicine, Bucheon Hospital, Bucheon, South Korea.
Summary
A man with decreased vision was diagnosed with ocular toxocariasis, an infection caused by Toxocara, after eating raw meat. Treatment with corticosteroids and albendazole improved his vision and eye condition.
Area of Science:
- Ophthalmology
- Infectious Diseases
- Parasitology
Background:
- Ocular toxocariasis is a parasitic infection of the eye caused by the larvae of the nematode Toxocara.
- It can lead to significant visual impairment and is often associated with exposure to contaminated soil or undercooked meat.
Observation:
- A healthy 46-year-old male presented with acute vision loss in his right eye.
- Funduscopic examination revealed an edematous optic disc with a cystic lesion and adjacent serous retinal detachment.
- Optical coherence tomography confirmed these findings, detailing a peripapillary serous retinal detachment and a distinct cystic lesion.
Findings:
- The patient exhibited moderate eosinophilia and tested positive for anti-Toxocara IgG antibodies.
- The clinical presentation and serological results led to a diagnosis of ocular toxocariasis.
- Histopathology of the excised lesion revealed features consistent with a granulomatous inflammatory response to Toxocara larvae.
Implications:
- This case highlights the importance of considering ocular toxocariasis in patients with unexplained vision loss, especially after potential exposure to the parasite.
- Early diagnosis and prompt treatment with antiparasitic agents (e.g., albendazole) and corticosteroids are crucial for preserving vision.
- Public health awareness regarding the risks of consuming raw or undercooked meat and proper hygiene practices are essential for preventing toxocariasis.
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