Central retinal artery occlusion diagnosed by color Doppler ultrasonography: A case report

• DOI: 10.22533/at.ed.1593332302053

• Palavras-chave: Central retinal artery occlusion, color Doppler ultrasound, ischemic stroke, cherry-red spots, sudden monocular visual loss, atherosclerosis, embolism, carotid stenosis.

• Keywords: Central retinal artery occlusion, color Doppler ultrasound, ischemic stroke, cherry-red spots, sudden monocular visual loss, atherosclerosis, embolism, carotid stenosis.

• Abstract:

  Central retinal artery occlusion (CRAO) is a form of ischemic stroke (CVA), with similar etiologies, but with a variable range of clinical entities in terms of pathophysiology, clinical features, diagnosis and management. Orbital Color Doppler Ultrasound (COUSD) is a useful non-invasive tool for the diagnosis of OACR and other pathologies of the orbit. This report describes the case of a patient diagnosed with CROCA through USDCO, with other exams normal, except for fundoscopy with cherry-red spots. USDCO is an important instrument for the clinical diagnosis and, in some cases, the etiology of sudden monocular visual loss, especially in cases with difficult or ambiguous clinical examination. The typical finding is the absence of flow in the central retinal artery (RCA), although there may be demonstrable flow. As CRCAO is a medical emergency, the USDCO can help in the rapid diagnosis, which is essential to establish the acute treatment and to define the secondary prophylaxis.