Fig. 4. Topographic markings for midface analysis are demonstrated on the left hemiface, including the malar equator (ME), medial vertical reference (MVR), lateral vertical reference (LVR), lower malar partition (LMP), upper malar partition (UMP), and infraorbital rim margin (SIRM). The right hemiface illustrates the deep fat compartment layers. The suborbicularis oculi fat is adherent to the undersurface of the orbicularis oculi. The prezygomatic space (blue capsule) overlies the ...