Key result
ICA stenting restores retinal perfusion and vision after delayed central retinal artery occlusion presentation.
Why the study?
In acute central retinal artery occlusion, vessel stenosis and hemodynamic impairment significantly affect visual prognosis.
Case Report (n=1)
Internal carotid artery stenting may facilitate visual recovery in acute central retinal artery occlusion with severe ICA stenosis even beyond the traditional treatment window when trace CRA visualization indicates residual flow.
Answers are grounded in this paper and cite their sources.
May support delayed stenting evaluation in select central retinal artery occlusion cases; leaves open need for prospective validation.
In acute central retinal artery occlusion (CRAO), vessel stenosis and hemodynamic impairment significantly affect visual prognosis. We report a 69-year-old man who presented with 18 hours of acute, severe right eye blurred vision. Fundus examination and optical coherence tomography confirmed central retinal artery (CRA) occlusion with inner retinal edema. Digital subtraction angiography revealed an aortic arch variation and severe C1 segment stenosis of the right internal carotid artery (ICA), accompanied by delayed ophthalmic artery filling and faint visualization of the CRA. After multidisciplinary consultation, the patient underwent ICA stenting. Postoperative imaging showed resolved stenosis and improved retinal perfusion; the patient's vision subsequently improved and stabilized. This case suggests that revascularization can facilitate visual recovery even beyond the traditional window. Furthermore, faint CRA visualization on digital subtraction angiography indicates residual flow, providing a potential rationale for recanalization therapy.
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Du et al. (2026) conducted a case report in Acute central retinal artery occlusion (CRAO) with severe right internal carotid artery (ICA) C1 segment stenosis (n=1). Internal carotid artery (ICA) stenting was evaluated on Resolution of stenosis, retinal perfusion, and visual recovery. Internal carotid artery stenting resolved severe C1 stenosis and improved retinal perfusion and vision in 1 patient presenting 18 hours after acute central retinal artery occlusion.
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