Undiagnosed Patent Foramen Ovale as a Rare Cause for Branch Retinal Artery Occlusion

Purpose To present the case of a man with branch retinal artery occlusion (BRAO) and concomitant patent foramen ovale (PFO), which was first diagnosed during the evaluation of BRAO. Methods A 35-year-old man presented with blurred vision in the left eye for 2 days. His best-corrected visual acuity (BCVA) was 6/6 in the right eye and 6/12 in the left eye. He had no ophthalmic or medical history. Results Ophthalmologic examination revealed a left...