Two Patients with a Rapid Increase in the Ocular Pressure after Carotid Artery Stenting for Cervical Internal Carotid Artery Stenosis with Ocular Ischemic Syndrome

Objective: We report two patients with a rapid increase in the ocular pressure after carotid artery stenting (CAS) for cervical internal carotid artery stenosis with ocular ischemic syndrome. Case Presentations: Case 1 was a 67-year-old male. Case 2 was a 70-year-old male. In the two patients, a reduction in vision and transient hemiparesis had persisted for a few months, leading to a diagnosis of severe internal carotid artery stenosis. Furthermore, they were diagnosed with ocular ischemic syndrome and neovascular glaucoma. Panretinal photocoagulation was performed before CAS in the Department of Ophthalmology. In Case 1, ocular pain appeared 9 days after CAS. In Case 2, it appeared the day after CAS, and increased ocular pressure was noted. After conservative treatment, trabeculectomy was performed, but the visual prognosis was unfavorable. Conclusion: In patients with severe internal carotid artery stenosis and ocular ischemic syndrome, there may be a rapid increase in the ocular pressure after revascularization. Therefore, it is necessary to establish a cross-sectional treatment strategy in cooperation with ophthalmologists.