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A 67-year-old female asked:

What is a hemi-crvo ? & what's the difference from crvo or branch occlusion?

1 doctor answer1 doctor weighed in
Dr. Jon Fishburn
Ophthalmology 31 years experience
Vein occlusion : A retinal vein occlusion may be total (crvo), 1/2 the retina (hemi-retinal), branched (brvo), or tertiary (smaller, branch retinal vein occlusion). So it's the size of vein that's occluded that depicts the name. Most often these occur from hypertension.

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Last updated Mar 13, 2014

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