[Clinical Picture] Caught on camera: confirmation of choroidal ischaemia causing transient vision loss
The differential diagnosis of transient monocular vision loss (TMVL), based on clinical history alone, is a common clinical problem. A 66-year-old man presented with a 3-month history of recurrent right TMVL. He had more than 15 episodes without provocation. He described multiple islands of visual loss that coalesced to complete monocular blindness—persisting for several minutes—followed by recovery in a reverse manner. While venous access was being obtained for fluorescein angiography (FA), the patient reported onset of an attack.