Bilateral anterior ischemic optic neuropathy caused by optic nerve head drusen: a case report

A case of bilateral Anterior Ischemic Optic Neuropathy (AlON) which is rela ted to buried optic nerve head drusen is presented. Such an etiology has ra rely been described and is poorly-documented in the literature. This etiolo gic diagnosis is brought by the imaging techniques: fluorescein angiography , B-scan ultrasonography and computed tomography. The pathogenesis may be r elated to the compressive effects encountered in a small scleral canal. The other complications of optic nerve head drusen are described and their sim ilar mechanisms discussed.