No Evidence for Retinal Damage Evolving from Reduced Retinal Blood Flow in Carotid Artery Disease.

Introduction: Carotid artery disease (CAD) comprising high-grade internal carotid artery stenosis (CAS) or carotid artery occlusion (CAO) may lead to ipsilateral impaired cerebral blood flow and reduced retinal blood supply.

Objective: To examine the influence of chronic CAD on retinal blood flow, retinal morphology, and visual function.

Methods: Patients with unilateral CAS ≥ 50% (ECST criteria) or CAO were grouped according to the grade of the stenosis and to the flow direction of the ophthalmic artery (OA).