Vein Occlusion

  • Retinal vein occlusion occurs when the blood flow of a retinal vein becomes obstructed, causing haemorrhages in the retina.
  • Swelling and ischemia (lack of oxygen) of the retina as well as glaucoma are common complications.
  • Vision loss can vary from minimal to severe and can be fully reversible or permanent depending on the extent of the ischaemia.
  • Risk factors include smoking, high blood pressure, diabetes and increasing age.
  • If it occurs in a young person without any risk factors investigations should be done to look for inherited blood clotting disorders.

Link: www.nlm.nih.gov/medlineplus/ency/article/007330.htm

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