(A) Standard Point cloud 3D reconstruction showing the scleral openings, nerve and BMO (B) The anterior and posterior scleral surface point clouds from the ONH in (A) have been transparently surfaced. Dark transparent circles correspond to the scleral openings and the nerve is transparent green, BMO is shown with red dots (C) A digital section through portions of both the nasal and temporal LPCAs has been removed and its cut surface is visualized in (D). Note that the inferior LPCA is, in this eye, a branch of the temporal LPCA (B). The temporal LPCA (left in B and D) enters the sclera near the CRA opening and slowly achieves the choroidal space well away from the ONH. The nasal LPCA (right in Band D) takes an even more gradual course through the sclera. In most eyes, the space between the LPCAs and the CRA contains choroidal branches from the LPCA which can be very dense (Figure 1D – 1F). Finally, note the general superior and temporal passage of the nerve (transparent green) relative to the dark scleral canal openings and (red) inferior arterial tree (Panels B and C) N – Nasal; T – Temporal; I – Inferior; S – Superior.