[Conjonctival human myiasis by Oestrus ovis in southern Tunisia]

Conjunctival myiasis is the most frequent expression of ocular myiasis. It results from infestation of the conjunctiva by the larval form of flies. We report 11 cases of conjunctival myiasis to encourage ophthalmologists to be aware of the diagnosis of external ophthalmomyiasis, its complications, and its treatment. Most of the cases occurred amongst males during summer and autumn. Symptoms are related to the foreign body with a sudden evolution. We diagnosed this affection by direct observation of the larva on conjunctiva. The number of larvae ranged from 2 to 30. The larvae were identified as first-instars of Oestrus ovis. The treatment was performed by removal of the larvae which resulted in rapid improvement. In conclusion, early diagnosis and management are important in preventing complications of internal ophthalmomyiasis.