Close follow-up or admission depending on the final determined cause
Amaurosis fugax
Causes are divided into embolic, hemodynamic, ocular, neurologic, and idiopathic [3]
Pellagra
Carotid emboli or Cardiac emboli in origin causing
Traumatic mydriasis
Central Retinal Artery Occlusion 
Proctalgia fugax
Central Retinal Vein Occlusion 