February.013. The Blue Mountains Eye Study. Less severe damage yields a greater chance of restoring and/or preserving vision. Medline . The ERG may be normal in some cases despite poor visual acuity if the blood flow renormalizes. If this occurs in the veins, it is called retinal vein occlusion; in the arteries, it is called retinal artery occlusion. There are less common conditions which may put a patient at risk for developing a vein occlusion including blood clotting abnormalities such as hyperhomocysteinemia, activated protein C resistance Factor V Leiden, protein C and S deficiency, anti–phospholipid antibodies and diseases which cause kludging of the circulation or so-called hyper viscosity. As to the prevalence of retinal vein occlusions both bravo and CRVO, a study published in February 2010 that pooled data from population studies from the U.S., Europe, Asia and Australia found: The prevalence of bravo was 4.4 per 1,000.
Next,.our.octor will do a thorough eye examination, including tests of your visual acuity how well you can see and peripheral vision. Answers to Frequently Asked Questions about CRVO Our data on CRVO, giving full, scientifically based information on these questions, can be found elsewhere 3 . Full Text . Philadelphia, PA: Lippincott Williams & Wilkins; 2013:vol 3;chap 14. Augsburger DJ, Magargal LE. Graeme's Arch Cain Exp Ophthalmol 1990;228:201-17.