[Acute visual loss with bilateral corneal edema].

An 84-year-old woman presented with bilateral visual loss that had appeared 3 days previously. Split lamp examination showed bilateral corneal edema with normal intraocular pressure. The patient complained of headache and vomiting, and finally collapsed. Elevated levels of inflammation markers led to the suspicion of an inflammatory disease. After investigation for internal or neurological diseases, a biopsy of the temporal artery was performed. Giant cell arteritis (Horton's disease) was found, and steroid therapy was begun. The patient's general condition then improved.