Ocular Ischemic Syndrome in the Setting of Normal Carotid Duplex Ultrasound.
Hashem H GhorabaMichael YuGina YuSean WangChris OrIrmak KaracaQuan Dong NguyenPublished in: Retinal cases & brief reports (2023)
CTA or MRA should be performed to rule out OIS if DUS is negative in the setting of high clinical suspicion. Carotid ostial and ophthalmic artery stenoses are rare but possible causes of OIS.