The Retina Reference

CRVO - Color

You should look at the Normal Retina photo first for comparison.In this photo, typical features of a central retinal vein occlusion are illustrated. Notice the dilated veins, hemorrhages within the retina, and small white areas where retinal oxygenation is poor. The problem is a clot blocking outflow of blood from the retinal veins. Swelling is present in the central retina, called macular edema, but this aspect is difficult to demonstrate in a color photo. The associated fluorescein angiogram shows the leakage of fluid out of the veins better. For more information on central retinal vein occlusion, look for this brochure under the heading Information.