Ocular external myiasis. A series of cases due to larvae Oestrus ovis in Navarra, Spain. / Miasis ocular externa. Serie de casos por larvas Oestrus ovis en Navarra.

ABSTRACT

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.