[Amaurosis fugax: case report].

We describe the case of 27-year-old woman with systemic lupus erythematosus (SLE) and the presence of anticardiolipin antibodies (aCL) IgG isotype in high titre in the plasma, who reported sudden loss of vision in both eyes. We established diagnosis of acute optic neuropathy probably associated with aCL and SLE flare. Treatment with anticoagulation, high dose steroids and intravenous cyclophosphamide was followed by improvement of the visual function.