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  2. Cherry-red spot - Wikipedia

    en.wikipedia.org/wiki/Cherry-red_spot

    The cherry red spot is seen in central retinal artery occlusion, appearing several hours after the blockage of the retinal artery occurs. [4] The cherry red spot is seen because the macula receives its blood supply from the choroid, supplied by the long and short posterior ciliary arteries , while the surrounding retina is pale due to retinal ...

  3. Central retinal artery occlusion - Wikipedia

    en.wikipedia.org/wiki/Central_retinal_artery...

    Cherry red spot in a person with central retinal artery occlusion. Central retinal artery occlusion is characterized by painless, acute vision loss in one eye. [1] Upon fundoscopic exam, one would expect to find: cherry-red spot (90%) (a morphologic description in which the normally red background of the choroid is sharply outlined by the swollen opaque retina in the central retina), retinal ...

  4. Central retinal artery - Wikipedia

    en.wikipedia.org/wiki/Central_retinal_artery

    The entire retina (with the exception of the fovea) becomes pale and swollen and opaque while the central fovea still appears reddish (this is because the choroid color shows through). This is the basis of the famous "Cherry red spot" seen on examination of the retina on funduscopy of a central retinal artery occlusion (CRAO).

  5. Ocular ischemic syndrome - Wikipedia

    en.wikipedia.org/wiki/Ocular_ischemic_syndrome

    Ocular ischemic syndrome is the constellation of ocular signs and symptoms secondary to severe, chronic arterial hypoperfusion to the eye. [1] Amaurosis fugax is a form of acute vision loss caused by reduced blood flow to the eye; it may be a warning sign of an impending stroke, as both stroke and retinal artery occlusion can be caused by thromboembolism due to atherosclerosis elsewhere in the ...

  6. Central retinal vein occlusion - Wikipedia

    en.wikipedia.org/wiki/Central_retinal_vein_occlusion

    A systematic review studied the effectiveness of the anti-VEGF drugs ranibizumab and pagatanib sodium for patients with non-ischemic CRVO. [5] Though there was a limited sample size, participants in both treatment groups showed improved visual acuity over 6 month periods, with no safety concerns.

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  8. Central serous chorioretinopathy - Wikipedia

    en.wikipedia.org/wiki/Central_serous_chorio...

    Recently, central serous chorioretinopathy has been understood to be part of the pachychoroid spectrum. [5] [6] In pachychoroid spectrum disorders, of which CSR represents stage II, the choroid, the highly vascularized layer below the retina, is thickened and congested with increased blood vessel diameter, especially in the deep choroid (the so-called Haller's layer).

  9. Sickle cell retinopathy - Wikipedia

    en.wikipedia.org/wiki/Sickle_cell_retinopathy

    Central retinal artery occlusion is a known feature of non-proliferative sickle cell retinopathy that has a low incidence in patients with non proliferative sickle cell retinopathy. [ 5 ] Optic nerve sign is represented by dilated capillaries that can be visualized in the nerve using fluorescein angiography.