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Related Experiment Videos

Chronic retinal vein occlusion in glaucoma.

R A Hitchings, G L Spaeth

    The British Journal of Ophthalmology
    |October 1, 1976
    PubMed
    Summary

    Asymptomatic chronic retinal vein occlusion linked to glaucoma causes elevated retinal vein pressure and unique vascular changes. This condition may impact long-term vision and retinal perfusion.

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    Color Doppler imaging in glaucoma patients with asymmetric optic cups.

    Journal of glaucoma·2009

    Area of Science:

    • Ophthalmology
    • Glaucoma Research
    • Retinal Vascular Diseases

    Background:

    • Chronic simple glaucoma is a progressive optic neuropathy.
    • Retinal vein occlusion (RVO) can affect vision and ocular health.
    • The association between asymptomatic RVO and glaucoma requires further investigation.

    Purpose of the Study:

    • To describe asymptomatic chronic retinal vein occlusion in patients with chronic simple glaucoma.
    • To characterize the specific vascular changes associated with this condition.
    • To explore the role of intraocular pressure and optic disc changes in its pathogenesis.

    Main Methods:

    • Clinical case description of patients with glaucoma and RVO.
    • Ophthalmoscopic examination to identify vascular abnormalities.
    • Measurement of retinal vein pressure.
    • Follow-up assessments to monitor RVO persistence.

    Main Results:

    • Asymptomatic RVO observed in chronic simple glaucoma patients.
    • Characterized by elevated retinal vein pressure, collateral vessels, and vein loops (central RVO) or veno-venous anastomoses (hemisphere RVO).
    • Absence of arterial changes, capillary closure, leakage, or hemorrhages; not limited to end-stage glaucoma.

    Conclusions:

    • Increased intraocular pressure and optic cup enlargement contribute to retinal vein distortion and occlusion in glaucoma.
    • Persistent RVO with elevated retinal vein pressure can reduce retinal and optic disc perfusion.
    • Potential long-term implications for visual prognosis in affected individuals.

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