Fig. 4

Optical coherence tomography (OCT) images of the patient’s left eye that were obtained when she was 22 years of age. a OCT image showing bundle shading at the optic disc combined with the finding that the nasal retina was overlaid on the optic disc (arrows). b OCT image showing that the layer structure of the surrounding retina was well preserved (arrows). c OCT image of the temporal side of the optic disc showing elevated stalk of the fold protruding into the vitreous at the site of the FRD (arrows), yet the upper and lower retinal layered structures were relatively well retained. d OCT image of the temporal peripheral side, showing that the retina was remarkable thinned, the layered structure was unclear and that the ellipsoid zone could not be clearly identified (arrows)