[Bilateral occlusion of the venous arm]

The paper reports on a clinical case of occlusion of retinal venous arm in both eyes, at a time interval of 6 months, the right eye being the former affected. The clinical observation showed the following: symmetrical topographic sites (superotemporal venous arm); existence of arteriovenous crossing in the occlusion site; ischemic capillaropathy with serious macular involvement. The clinical and lab examinations did not show pathogenic elements. The paper discusses largely on the role of arteriovenous crossing and of arteriosclerosis in the pathogeny of affection, the visual prognosis and on some therapeutic considerations.