Retinal Vein Occlusion
Retinal Vein Occlusion - Related Videos
07:23
Optimization of the Retinal Vein Occlusion Mouse Model to Limit Variability
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Cited by 9 •
2021
Here, we describe an optimized protocol for retinal vein occlusion using rose bengal and a laser-guided retinal imaging microscope system with recommendations to maximize its reproducibility in genetically modified strains.
10:46
Doppler Optical Coherence Tomography of Retinal Circulation
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Cited by 29 •
2012
Total retinal blood flow is measured by Doppler optical coherence tomography and semi-automated grading software.
10:16
Intravital Video Microscopy Measurements of Retinal Blood Flow in Mice
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Cited by 14 •
2013
Intravital microscopy can be used in animals to visualize and measure retinal vascular diameters, bloodstream velocities, and total retinal blood flow.
02:54
Preparation of Mouse Retinal Cryosections to Assess Retinal Permeability to Adeno-Associated Virus
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2026
Source: Vacca, O., et al. Using Adeno-associated Virus as a Tool to Study Retinal Barriers in Disease. J. Vis. Exp. (2015)This video demonstrates the step-by-step procedure for preparing mouse retinal cryosections to visualize adeno-associated virus permeability across disrupted retinal barriers.
10:14
Using Adeno-associated Virus as a Tool to Study Retinal Barriers in Disease
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Cited by 6 •
2015
To investigate the blood-retinal barrier permeability and the inner limiting membrane integrity in animal models of retinal disease, we used several adeno-associated virus (AAV) variants as tools to label retinal neurons and glia. Virus mediated reporter gene expression is then used as an indicator of retinal barrier permeability.
FAQs
The key early consequence is a rise in venous pressure behind the obstruction. This pressure slows retinal circulation and can disrupt the vessel environment enough to produce hemorrhage and fluid leakage. Because the macula supports visual function, leakage in this region is especially important: it can contribute to retinal swelling and threaten vision even when the initiating vascular problem is localized.
Oxygen deficiency links vascular disturbance to later tissue responses. Prolonged retinal ischemia can stimulate signaling through vascular endothelial growth factor, or VEGF, which promotes abnormal blood-vessel growth. This response shows that retinal vein occlusion is not only a drainage problem; altered oxygen status can activate molecular pathways that further change retinal vascular behavior.
Fluid leakage into the macula provides a direct connection between vascular injury and visual impairment. The affected region is clinically important because macular involvement can threaten vision. Studying this relationship helps neuroscientists examine how disturbed circulation affects neural tissue and how vascular changes translate into loss of visual function.
Clinical evaluation and imaging are used together to characterize the retinal consequences of the occlusion. They help guide treatment by assessing the vascular disorder and its effects, including hemorrhage, ischemia, or macular fluid leakage. This workflow matters because management is informed by observed retinal changes rather than by the vascular event alone.
Anti-VEGF therapy targets the signaling associated with abnormal vessel growth. Its relevance follows from the sequence in which prolonged oxygen deficiency stimulates VEGF-related responses. By addressing this pathway, treatment is directed at a molecular consequence of the vascular disturbance, while clinical evaluation and imaging remain important for determining how the retina has been affected.
Retinal vein occlusion serves as a research model for retinal vascular regulation, edema, and vision loss. In neuroscience, the condition is valuable because it connects blood-flow disruption with damage to neural tissue and visual function. Investigators can therefore use its vascular and fluid-related changes to study neurovascular interactions in the retina, not merely vessel blockage.