FIGURE 13.

Fluorescein angiography in nonarteritic anterior ischemic optic neuropathy in young patients (NAIONy), chronic renal failure (CRF). Upper left, Fundus photograph showing segmental, pale optic disc edema. Inferotemporal segment (arrow) is relatively spared. Upper right, Fluorescein angiogram, early arteriovenous phase, showing diffusely poor filling of the optic disc (arrows) at 8.4 seconds. Lower left, Fluorescein angiogram, early arteriovenous phase, showing diffusely poor filling of the optic disc with inferotemporal segment of relatively intact filling (arrow) at 16.1 seconds. Lower right, Fluorescein angiogram, late phase, showing late leakage from optic disc at 540.0 seconds.