External ophthalmomyiasis is a superficial infestation of the eye tissues by the larvae or maggots of flies. External ophthalmomyiasis, caused by Oestrus ovis, is found occasionally in shepherding areas, but is rare in the cities of eastern China. We present a case of a 30-year-old man with complaints of a foreign body sensation, lacrimation and itching in the right eye, with uncorrected visual acuity of 20/20 in each eye. Six larvae were removed from the conjunctival sac and were ultimately authenticated as the first instar larvae of Oestrus ovis. He responded well after prompt appropriate therapy.
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