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Volume 14, Number 1—January 2008
International Polar Year


Human Ophthalmomyiasis Interna Caused by Hypoderma tarandi, Northern Canada

Philippe R.S. Lagacé-Wiens*Comments to Author , Ravi Dookeran*, Stuart Skinner*, Richard Leicht*, Douglas D. Colwell†, and Terry D. Galloway*
Author affiliations: *University of Manitoba, Winnipeg, Manitoba, Canada; †Agriculture and Agri-food Canada, Lethbridge, Alberta, Canada;

Main Article


Demographics and clinical presentation of 32 patients with ophthalmomyiasis interna*

CharacteristicNo. (%)
Red eye21 (60)
Vision loss24 (68)
Floaters24 (68)
Eye pain6 (17)
Scotomas3 (9)
Male27 (77)
Female7 (20)
Loss of vision
Severe or total†12 (34)
Moderate2 (6)
Mild or none19 (54)

*Patients identified during literature search and described in the Appendix Table. Mean patient age was 25.2 y; median, 16 y.
†Includes blindness caused by enucleation.

Main Article

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