How to Achieve Double Eyelids for Those with Natural Partial Folds

Individuals with “inner double eyelids”—a term commonly used in East Asian aesthetics to describe a subtle or partially hidden upper eyelid crease—often seek cosmetic enhancement to create a more defined, visible, and symmetrical double eyelid fold. This anatomical variation is not a medical condition but rather a normal variant in eyelid morphology, frequently associated with a thicker orbital septum, increased preseptal fat, or a lower insertion point of the levator aponeurosis.

Two primary surgical approaches are widely employed: incisional blepharoplasty and non-incisional (suture) techniques. Incisional blepharoplasty involves precise excision of excess skin, orbicularis oculi muscle, and/or fat, followed by anchoring the levator aponeurosis to the tarsal plate via permanent sutures. This method offers maximal control over fold height, shape, and longevity—particularly beneficial for patients with significant dermatochalasis, ptosis, or thickened tissues.

In contrast, non-incisional suture techniques—such as the埋线法 (buried suture method)—create the fold by placing multiple strategically positioned absorbable or non-absorbable sutures through the upper eyelid without external incisions. While recovery is typically faster and scarring minimal, long-term stability may be reduced, especially in individuals with heavier lids or greater tissue elasticity. Revision rates tend to be higher compared with incisional methods.

Preoperative assessment is critical and must include evaluation of lid anatomy, skin elasticity, fat distribution, levator function, and ocular surface health. Patients with active thyroid eye disease, severe dry eye syndrome, or uncontrolled glaucoma require careful risk-benefit analysis and often multidisciplinary consultation. Realistic expectations, thorough informed consent—including discussion of potential complications such as asymmetry, undercorrection, overcorrection, lagophthalmos, or suture exposure—are essential components of ethical practice.

Ultimately, the optimal technique depends on individual anatomical characteristics, aesthetic goals, and surgeon expertise—not on standardized protocols. A board-certified oculoplastic or facial plastic surgeon with specialized experience in Asian eyelid surgery is strongly recommended to ensure both functional integrity and natural-appearing outcomes.