Alteration of choroidal thickness in a case of carotid cavernous fistula: a case report and a review of the literature

Abstract

Background To measure the alterations of the choroidal thickness in Carotid cavernous fistula (CCF) using enhanced depth imaging optical coherence tomography (EDI-OCT). Case presentation A 64-year-old woman was referred to us for redness, exophthalmos and visual disturbance in her right eye. She was diagnosed with CCF by magnetic resonance imaging (MRI) and magnetic resonance angiography. Observations; Embolization resulted in improvement of ocular symptoms, and there was a reduction of the subfoveal choroidal thickness in the right eye from 351 μm preoperatively to 142 μm postoperatively in EDI-OCT. Conclusion EDI-OCT demonstrated that the choroidal thickness increases occurred due to congestion in a CCF case.