[Increased episcleral venous pressure in uveal effusion]

This paper reports on two patients with bilateral, spontaneous choroidal and retinal detachment. One patient had scleritis, while in the other no underlying eye disease was found. No signs of orbital venous congestion were detected. Although the pathogenesis of this disease is not fully known, the findings of (1) dilated episcleral veins and (2) elevated episcleral venous pressure suggest an obstruction of venous outflow from the uveal tract. The authors believe that these two findings may have been caused by shunting of venous blood anteriorly from the uveal tract into the episcleral veins due to partial obstruction of the vortex veins.