Oasis in an Ischemic Desert

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    • By Dr Supreme Goel
      Chaithanya eye hospital and research institute Trivandrum Kerala
      Co-author(s): Dr Manoj S, Head of department of Retina and Vitreous, and Dr Unnikrishnan Nair R, Medical Director, Chaithanya Eye Hospital and Research Institute, Trivandrum, Kerala
    • Uploaded on Jun 17, 2026.
    • Last modified by Joshua Friedman on Jun 18, 2026.
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    Appears in
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    Condition/keywords
    CRVO, capillary nonperfusion
    Photographer
    Dr Supreme Goel
    Imaging device
    Optical coherence tomography system
    UWF SS OCTA INTALIGHT
    Description
    Swept-source ultra-widefield OCT angiography (SS-UWF OCTA) of the left eye of a 74 year-old woman with chronic ischemic central retinal vein occlusion (CRVO) demonstrates extensive capillary non-perfusion along with macular ischemia. The preserved major retinal vessels radiating from the optic disc contrast sharply with the surrounding avascular retina, creating the appearance of a solitary vascular tree standing within a vast ischemic landscape. This image highlights the ability of SS-UWF OCTA to delineate the full extent of retinal ischemia in chronic CRVO without the need for dye-based angiography.

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