Central retinal vein occlusion associated with retinal arteriovenous malformation.
OBJECTIVE
Retinal arteriovenous malformations can be seen in a variety of ways and have multiple, associated, ocular changes that can affect vision. The authors report two cases of retinal arteriovenous malformation. In each case, a central retinal vein occlusion developed.


METHODS
Each patient underwent clinical examination and fluorescein angiography. One patient was followed over a long period of time.


CONCLUSIONS
The authors propose that a turbulent flow, high intravascular volume, and arteriolar pressure in the venous side of the retinal arteriovenous malformation may lead to vessel wall damage, thrombosis, and occlusion. They also suggest that compression of the central retinal vein by the mass effect of the arteriovenous malformation on the optic nerve further leads to turbulence and thrombosis.
Schatz
H
H
Chang
L F
LF
Ober
R R
RR
McDonald
H R
HR
Johnson
R N
RN
D001165:Arteriovenous Malformations / Q000150:complications* / Q000473:pathology; D002648:Child; D005260:Female; D005451:Fluorescein Angiography; D005500:Follow-Up Studies; D005654:Fundus Oculi; D006801:Humans; D008875:Middle Aged; D012161:Retinal Artery / Q000002:abnormalities*; D012169:Retinal Vein / Q000002:abnormalities*; D012170:Retinal Vein Occlusion / Q000209:etiology* / Q000473:pathology; D014792:Visual Acuity