Figure 1

Figure 1 : 

(A) Left eye fluoresceing angiography showing a prepapillary arterial loop. Optic disc, arterial and venous vascularization are not affected by further significant abnormalities. As the kinking course of vessels does not allow a complete visualization of the vascular course, the loop is probably upstream of the inferotemporal retinal artery. (B) Preoperative right eye B-scan ultrasonography demonstrating the vitreous hemorrhage and a posterior vitreous detachment with residual adhesion on a prepapillary hyperechogenic vascular anomaly (arrow). (C) One-week post-surgical retinography showing a prepapillary vascular abnormality. (D) The one-week postoperative fluoresceing angiography shows a prepapillary hyperfluorescent vascular abnormality with a hypofluorescent central spot corresponding to the surgically coagulated vessel. Inferotemporal retinal artery is characterized by a reduced lumen and a delayed perfusion.