Fig. 18. Emissary canal in sclera for the long temporal posterior ciliary artery and nerve (LTPCA and LTPCN). Submacular arterial branch (arrowhead) curves posteriorly to enter choroid abruptly. LTPCN (double arrowhead) and LTPCA slip into suprachoroidal space obliquely. Equator (E) toward left, and optic nerve (ON) toward right.(H & E, × 31)