Related Experiment Video
Updated: Jul 18, 2026

05:20
A Murine Model of Ischemic Retinal Injury Induced by Transient Bilateral Common Carotid Artery Occlusion
Published on: November 12, 2020
[Pseudoangiitis in bilateral ocular ischemia]
1Augenzentrum Recklinghausen, Erlbruch 34-36, 45657 Recklinghausen. holger.baatz@augenzentrum.org
Summary
Ocular ischemia can mimic inflammatory conditions like frosted branch angiitis. This case highlights how vascular occlusion may present with similar retinal vessel leakage, emphasizing the need for thorough vascular assessment.
Area of Science:
- Ophthalmology
- Vascular Medicine
Background:
- Frosted branch angiitis initially described idiopathic vasculitis with panuveitis.
- The term now also refers to retinal vessel leakage in various ocular and systemic diseases.
Observation:
- A 57-year-old male presented with acute vision loss and headaches.
- Temporal artery pulse was absent; fluorescence angiography revealed diffuse retinal vessel leakage resembling frosted branches.
- Vascular imaging showed bilateral common carotid artery occlusion and left vertebral artery hypoplasia.
Findings:
- Laboratory and histological findings excluded vasculitis.
- The patient's presentation mimicked inflammatory conditions but was attributed to ocular ischemia.
- Angiographic appearance of diffuse retinal leakage can be caused by vascular occlusion.
Implications:
- Ocular ischemia can present with angiographic findings similar to inflammatory diseases.
- This case underscores the importance of considering vascular causes for retinal abnormalities.
- Differential diagnosis for frosted branch angiitis should include non-inflammatory vascular events.
Related Concept Videos
Glaucoma: Overview
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
Angle Closure Glaucoma: Treatment
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
Open Angle Glaucoma: Treatment
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...

