Human appearance and nonverbal communication are largely influenced by the superior periocular area. Therefore, patients desire this area to appear as vital as possible. Appropriate volume of the fat compartments of the eyebrow and eyelid, including the frontalis fat, retro-orbicularis oculi fat (ROOF), and preaponeurotic fat are essential for a youthful appearance (Figure 1A, Figure 2). These fat compartments also allow for smooth movement of surrounding tissues to facilitate eyelid function and facial expression.
Woodward JA, Langelier N. Filler Enhancement of the Superior Periocular Area. JAMA Facial Plast Surg. 2016;18(6):489-490. doi:10.1001/jamafacial.2016.0636