Ocular external myiasis. A series of cases due to larvae Oestrus ovis in Navarra, Spain.

OBJECTIVE

To report a case series of external ophthalmomyiasis in a region of Spain together with its common epidemiological factors and treatment.

MATERIAL AND

METHODS

A presentation is made of four clinical cases of patients with external ocular myiasis caused by Oestrus ovis larvae.

RESULTS

Ocular myiasis is a parasitic infection by larval stages of flies. It can affect the ocular globe externally and / or internally, with the former being the most frequently found condition. The organism that mainly affects the eyes is the Oestrus ovis larvae.

CONCLUSION

Ocular external myiasis is a rare condition that occasionally can occur in humans. In this case series, a common risk factor for infection is established: the previous exposure to livestock and / or agricultural activity. An adequate diagnosis and treatment could avoid the transition from external to internal form, as well as its complications.