Stephen J. Schueler, M.D.

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Central Retinal Artery Occlusion Underlying Cause

Central retinal artery occlusion is caused by a blood clot that gets stuck in the retinal artery. A clot may travel through the bloodstream from a distant site and become lodged in the central retinal artery, blocking blood flow. This is known as embolization.

Within minutes of being blocked, the cells of the retina stop working. This causes a sudden, painless loss of vision.

Causes of central retinal artery occlusion include:

Continue to Central Retinal Artery Occlusion Anatomy

Last Updated: Jan 26, 2011 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Central Retinal Artery Occlusion References
  1. Fraser S, Siriwardena D. Interventions for acute non-arteritic central retinal artery occlusion. Cochrane Database Syst Rev. 2002;(1):CD001989. [1186961]
  2. Ramakrishna G, Malouf JF, Younge BR, Connolly HM, Miller FA. Calcific retinal embolism as an indicator of severe unrecognised cardiovascular disease. Heart. 2005 Sep;91(9):1154-7. [1610354]
  3. Rumelt S, Brown GC. Update on treatment of retinal arterial occlusions. Curr Opin Ophthalmol. 2003 Jun;14(3):139-41. [12777932]
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