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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

    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). However it should be remembered that the Cilio retinal artery itself is a branch of the Short Posterior Ciliary Arteries which is derived from the Ophthalmic Artery.

  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. Acute visual loss - Wikipedia

    en.wikipedia.org/wiki/Acute_visual_loss

    Central retinal artery occlusion: CRAO is characterized by painless, acute vision loss in one eye. [11] Central retinal vein occlusion: CRVO causes sudden, painless vision loss that can be mild to severe. [12] Branch retinal vein occlusion: sudden painless vision loss or visual field defect are the main symptom of BRVO. [13]

  7. Macula - Wikipedia

    en.wikipedia.org/wiki/Macula

    The macula (/ˈmakjʊlə/) [1] or macula lutea is an oval-shaped pigmented area in the center of the retina of the human eye and in other animals. The macula in humans has a diameter of around 5.5 mm (0.22 in) and is subdivided into the umbo, foveola, foveal avascular zone, fovea, parafovea, and perifovea areas.

  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. Ophthalmic artery - Wikipedia

    en.wikipedia.org/wiki/Ophthalmic_artery

    Severe occlusion of the ophthalmic artery causes ocular ischemic syndrome. As with central retinal artery occlusions, ophthalmic artery occlusions may result from systemic cardiovascular diseases ; however, a cherry-red spot is typically absent and the vision is usually worse.

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