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[Keratouveitis and lens opacity caused by butterfly hair].

Butterfly hair is known to cause eye injury. In Africa, incriminated butterflies are Hylesia (spp). We report a case of a sub-epithelial keratitis associated with anterior uveitis following a trauma by a butterfly that was complicated by late lens opacity due to butterfly hair. Ocular lesions caused by butterfly hair are rare, but require an urgent management to prevent late and severe complications due to intraocular migration of the hairs.