Fig. 2

Oblique optical coherence tomographic image (enhanced depth imaging). Oblique optical coherence tomographic image (enhanced depth imaging), showing a defect between the central end of Bruch’s membrane (vertical green arrow with red border) and the peripheral end of the border tissue of Elschnig and Jacoby (horizontal blue arrows with red border), which normally separates the choroid from the intrapapillary region and connects between the central end of Bruch’s membrane and the pia mater of the optic nerve (horizontal yellow arrow with blue borders); retinal nerve fiber layer tissue is herniated (white arrows) into the suprachoroidal / supra-cerebrospinal fluid space cavitation; the cavitation is bordered by an elongated and thinned posterior sclera (green arrows) which connects with the peripapillary scleral flange (between both yellow arrows) at the merging point of optic nerve dura mater (horizontal blue arrow with yellow borders) with the sclera; the peripapillary scleral flange forms the roof of the cerebrospinal fluid space (yellow star) between the pia mater of the optic nerve (horizontal yellow arrow with blue borders) and the presumed dura mater (horizontal blue arrow with yellow borders); between vertical green arrow with red borders and the vertical red arrow: peripapillary alpha zone with presence of Bruch’s membrane and presence of irregularly structured retinal pigment epithelium; there is no peripapillary beta zone since Bruch’s membrane (vertical black arrow with white borders) is covered with retinal pigment epithelium (normal or irregularly structured) all along its course