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Ocular toxocariasis in Korea.
Soon Il Kwon1, Jung Pil Lee, Sung Pyo Park
1Department of Ophthalmology, Hallym University Sacred Heart Hospital, Anyang, Korea.
Japanese Journal of Ophthalmology
|March 15, 2011
Summary
Ocular toxocariasis, an eye infection caused by Toxocara, typically affects middle-aged men, presenting as unilateral inflammation. Prompt treatment leads to good visual outcomes.
Area of Science:
- Ophthalmology
- Infectious Diseases
- Parasitology
Background:
- Ocular toxocariasis is a parasitic infection of the eye caused by the larvae of the dog and cat roundworm, Toxocara.
- It can lead to significant visual impairment if not diagnosed and treated promptly.
Purpose of the Study:
- To analyze the clinical characteristics and manifestations of ocular toxocariasis.
- To evaluate the diagnostic methods and treatment outcomes in affected patients.
Main Methods:
- A retrospective study of 33 patients diagnosed with ocular toxocariasis between 1999 and 2008.
- Diagnosis was confirmed using clinical evaluation, enzyme-linked immunosorbent assay (ELISA), and immunoblotting.
- Patients completed questionnaires regarding risk factors, demographics, and social characteristics.
Main Results:
- The study included 33 patients (73% male, mean age 41.6 years).
- Common symptoms included blurred vision (67%) and floaters (18%).
- Unilateral inflammation with peripheral Toxocara granuloma was observed in 52% of eyes. Visual acuity improved significantly after treatment, with 79% achieving 20/40 or better.
Conclusions:
- Ocular toxocariasis in Korea predominantly affects adult men.
- Clinical presentation typically involves unilateral, acute inflammation with a peripheral inflammatory mass.
- Effective treatment offers a favorable visual prognosis.
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