Although, there are inter-individual variations. The eyebrows tend to be heavier, flatter, and higher in males whereas they are more arched in females. 14 Eyebrow position is also different between males and females. 13 Among Whites, the eyelid skin crease varies in height and tends to lie 8 to 11 mm above the eyelid margin centrally in males and 6 to 9 mm above the eyelid margin centrally in females. The upper eyelid skin crease is created by attachments of the posterior layer of the levator aponeurosis into the orbicularis muscle and sub cutaneous tissue. 1 It is well known that these facial features vary with race, age, and sex. The eyebrows, eyelid crease, and pretarsal skin are among the facial features that play important roles in facial appearance and ethnic identification. Understanding the anatomy of the eyelids and upper face helps provide information on their functions and roles in one’s appearance.
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