Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Varix of the vortex ampulla

R H Osher, G W Abrams, D Yarian

    American Journal of Ophthalmology
    |November 1, 1981
    PubMed
    Summary
    This summary is machine-generated.

    Extreme eye movements can cause a temporary lesion at the venous vortex ampulla to appear and expand. This dynamic ocular finding, a varix, is not a malignancy and resolves with changes in gaze or pressure.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    InterCarb: A Community Effort to Improve Interlaboratory Standardization of the Carbonate Clumped Isotope Thermometer Using Carbonate Standards.

    Geochemistry, geophysics, geosystems : G(3)·2021
    Same author

    Cervical nodal metastases in squamous cell carcinoma of the head and neck: what to expect.

    Head & neck·2002
    Same author

    Prosthetic iris implantation for congenital, traumatic, or functional iris deficiencies.

    Journal of cataract and refractive surgery·2001
    Same author

    Progressive outer retinal necrosis syndrome in a lymphoma patient with good visual outcome.

    American journal of ophthalmology·2001
    Same author

    CT detection of mandibular invasion by squamous cell carcinoma of the oral cavity.

    AJR. American journal of roentgenology·2001
    Same author

    Demyelinating diseases, leukodystrophies, and other myelin disorders.

    Neuroimaging clinics of North America·2001

    Area of Science:

    • Ophthalmology
    • Vascular Anatomy
    • Medical Imaging

    Background:

    • Understanding the dynamic behavior of orbital vascular structures is crucial for accurate diagnosis.
    • Venous vortex ampullae are key anatomical sites within the choroid.

    Observation:

    • A transient lesion was observed at the venous vortex ampulla site in five patients during extreme gaze.
    • Lesion size and color varied with gaze direction and duration.
    • Expansion occurred with head-down positioning and Valsalva maneuvers.

    Findings:

    • The observed tumefaction originated from the venous vortex ampulla, confirmed by fluorescein angiography.
    • Dynamic ophthalmoscopic and ultrasonographic features are characteristic of a vortex ampulla varix.
    • The lesion rapidly resolved with head elevation, digital globe pressure, or altered gaze.

    Related Experiment Videos

    Implications:

    • Distinguishing vortex ampulla varices from orbital malignancies is essential for appropriate patient management.
    • This highlights the importance of considering dynamic vascular changes in ophthalmic assessments.
    • Further research into the physiological mechanisms of vortex ampullae could improve diagnostic accuracy.