Fig. 1

Clinical manifestation of optic disc edema in Case 1: Upper panel shows the initial fundus photographs of both eyes, OD with optic disc edema. Middle panel shows the optical coherence tomography (OCT)-derived retinal thickness map while the circle diagram illustrates the four segments of the peripapillary retinal nerve fiber layer thickness upon initial examination. Lower panel shows the cross-sectional OCT scan of macula and optic nerve head of OD