Binasal Hemianopia Due to Bilateral Internal Carotid Arteries Dolichoectasia: A Case Report and Literature Review

Binasal hemianopia is rare. It more commonly associated with ocular diseases than intracranial pathologies. Nevertheless, the proximity of internal carotid arteries (ICA) to visual pathway may cause a variety neurologic effects which lead loss. Although loss uncommon, ICA aneurysm compress optic nerve causing field defect and reduced acuity. We report 66-year-old male presented asymptomatic binasal detected during routine glaucoma screening. Computed tomography (CT) magnetic resonance imaging (MRI) brain orbit showed dolichoectasia in cavernous segment both ICA, compressed pre-chiasmatic bilaterally. Humphrey’s test confirmed diagnostic respecting vertical midline. This was first reported case without disturbances. highlights importance using CT MRI as additional tools identify true (ICA dolichoectasia) patients glaucoma. A thorough assessment any helps detect life-threatening pathologies effectively managed accordingly.