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Human ophthalmomyiasis interna caused by Hypoderma tarandi, Northern Canada
Philippe R S Lagacé-Wiens1, Ravi Dookeran, Stuart Skinner
1Department of Medical Microbiology and Infectious Diseases, University of Manitoba, 543-720 William Avenue, Winnipeg, Manitoba, Canada. csplw@mts.net
Emerging Infectious Diseases
|February 9, 2008
Summary
Human myiasis, an infection from bot fly larvae, is rare but rising. Prompt treatment, including larva removal and steroids, can restore vision in cases of ophthalmomyiasis.
Area of Science:
- Ophthalmology
- Veterinary Entomology
Background:
- Human myiasis, particularly ocular involvement (ophthalmomyiasis), is an uncommon condition.
- Bot fly infections (Hypoderma spp.) in humans, originating from nonhuman animal hosts, are infrequently documented but show a potential increase.
Observation:
- Ophthalmomyiasis caused by Hypoderma spp. presents a rare but significant threat to vision.
- Larval presence within the eye necessitates urgent and specialized intervention.
Findings:
- The primary treatment involves surgical removal of the bot fly larva.
- Laser photocoagulation or vitrectomy, combined with intraocular corticosteroids, are the recommended therapeutic strategies.
Implications:
- Early recognition and prompt treatment of Hypoderma-induced ophthalmomyiasis are crucial for visual recovery.
- This condition highlights the zoonotic potential of certain bot fly species and the importance of veterinary and medical collaboration.
