Related Experiment Video
Updated: Aug 22, 2026

A Mouse Model of Retinal Ischemia-Reperfusion Injury Through Elevation of Intraocular Pressure
Published on: July 14, 2016
Elevated intracranial pressure associated with idiopathic retinal vasculitis, aneurysms, and neuroretinitis syndrome
Matthew D Hammond1, Thomas P Ward, Barrett Katz
1Ophthalmology Service, Walter Reed Army Medical Center, 5900 Georgia Avenue NW, Washington, DC 20307, USA.
Insights
Idiopathic Retinal Vasculitis, Aneurysms, and Neuroretinitis (IRVAN) syndrome can present with optic disc swelling and elevated intracranial pressure. This case highlights a potential initial presentation of IRVAN syndrome in young patients.
Area of Science:
- Ophthalmology
- Neurology
- Vascular Biology
Background:
- Idiopathic Retinal Vasculitis, Aneurysms, and Neuroretinitis (IRVAN) syndrome is a rare condition typically affecting young individuals.
- It is characterized by retinal macroaneurysms, neuroretinitis, and peripheral capillary nonperfusion.
Observation:
- A 12-year-old girl presented with bilateral optic disc swelling and peripapillary hemorrhage.
- Brain MRI was normal, but lumbar puncture revealed elevated intracranial pressure (360 mm H2O).
- MR venography showed poor filling of transverse venous sinuses.
Findings:
- Fluorescein angiography confirmed saccular aneurysms in the retinal arteriolar vasculature.
- IRVAN syndrome was diagnosed based on clinical presentation and angiographic findings.
- The patient's optic nerve swelling and elevated intracranial pressure preceded the characteristic vascular abnormalities.
Implications:
- This case suggests that optic nerve swelling and elevated intracranial pressure may be initial manifestations of IRVAN syndrome.
- Early recognition of these signs could lead to earlier diagnosis and management of IRVAN syndrome.
- Understanding the varied presentations of IRVAN syndrome is crucial for effective patient care.
Abstract:
The idiopathic retinal vasculitis, aneurysms, and neuroretinitis (IRVAN) syndrome typically occurs in young patients and may produce multiple retinal macroaneurysms, neuroretinitis, and peripheral capillary nonperfusion. Optic disc edema has been described, but elevated intracranial pressure has not been previously documented. We report a case of a 12-year-old girl who presented with bilateral disc swelling and peripapillary hemorrhage. Brain magnetic resonance imaging (MRI) was normal, but lumbar puncture yielded an opening pressure of 360 mm H2O with normal constituents. Fluorescein angiography delineated saccular aneurysms of the retinal arteriolar vasculature, and IRVAN syndrome was diagnosed. MR venography disclosed poor filling of both transverse venous sinuses. Acetazolamide treatment of 14 months did not alter the fundus findings. IRVAN syndrome may present initially with optic nerve swelling and elevated intracranial pressure with subsequent development of the characteristic retinal vascular abnormalities.
Related Concept Videos
Increased Intracranial Pressure ll: Pathophysiology
Increased Intracranial Pressure l: Introduction
Cerebral Edema ll: Pathophysiology
Glaucoma: Overview
Diabetic Retinopathy
Encephalitis ll: Pathophysiology