How Epicanthoplasty Works
앞트임 (apteuin — inner eye corner opening, also called medial epicanthoplasty) targets the epicanthal fold: the vertical skin fold that originates from the upper eyelid and runs across the inner corner of the eye toward the nose. This fold partially or fully covers the lacrimal caruncle (the small pink tissue at the innermost corner of the eye). When the fold is prominent, it reduces the visible horizontal width of the eye and can create the impression that the eyes sit closer together than they anatomically do.
The surgical goal is straightforward: release or remove enough of the fold to expose the inner canthus without creating a scar that is more visible than the fold it replaced. Surgeons access the fold under local anesthesia — sometimes with light sedation — and use small incisions to cut, rearrange, or excise the overlying skin. The specific incision pattern determines how the resulting scar is hidden: most techniques route the scar along natural skin tension lines or within the tear duct shadow to minimise visibility.
Anatomy matters here. The inner corner skin is among the thinnest and most tension-prone on the face, because eyelid movement continuously stresses the closure. That mechanical stress is why inner corner scars carry higher visibility risk than scars elsewhere on the eyelid.
Plastic surgery and dermatology collectively account for the largest share of procedures sought by international patients in Korea,² and epicanthoplasty is one of the most requested procedures within that category — frequently combined with double eyelid surgery (쌍꺼풀, ssangkkeopul) in a single operative session. The Korean Society of Plastic and Reconstructive Surgeons (KSPRS; 대한성형외과학회, Daehan Seonghyeong Oegwa Haghoe) maintains the certification registry for surgeons legally qualified to perform these procedures,¹ and board certification is required by law to operate in licensed facilities.¹
The procedure itself typically takes 30–60 minutes for epicanthoplasty alone, or 90–120 minutes when combined with double eyelid surgery. No general anesthesia is required for most cases.
Technique Comparison: Medial Types and Combined Approaches
Six techniques cover the majority of epicanthoplasty practice in Korea. They differ in incision geometry, the type and prominence of epicanthal fold they suit best, where the resulting scar falls, and how much correction they deliver. No technique is universally superior — the right choice depends on the patient’s fold anatomy, skin thickness, and whether concurrent procedures are planned.
Two points from this table warrant emphasis. First, correction range is modest across all techniques: 2–4 mm per side is the realistic expectation for medial epicanthoplasty alone. Patients expecting dramatically larger eyes from this procedure alone should recalibrate before booking. Second, combining epicanthoplasty with lateral canthoplasty (뒤트임, dwitteuin — outer eye corner opening) in a single session can achieve 3–6 mm of total horizontal elongation across both corners, which is more perceptible, but it doubles the number of incision sites and scar locations to monitor during healing.
Surgeon technique preference matters as much as the technique category. A surgeon who has performed W-plasty hundreds of times will typically produce better W-plasty outcomes than a surgeon experimenting with V-Y advancement for the first time. Asking about a surgeon’s primary technique and case volume is a meaningful consultation question. KSPRS board certification can be verified directly on the KSPRS public registry before consultation.¹
Candidacy and Ethnic Considerations
The epicanthal fold is a normal anatomical feature present in an estimated 40–90% of East Asian individuals, with prominence varying considerably between individuals. Its presence alone is not a reason for surgery. The relevant clinical question is whether the fold is prominent enough that its removal would produce a meaningful aesthetic improvement that outweighs the scarring risk specific to the inner corner.
Often a good candidate
- East Asian patients with a prominent epicanthal fold that makes the eye appear smaller or closer together than desired — and who understand the change will be 2–4 mm, not dramatic
- Patients who have had double eyelid surgery but find the inner corner crease is partially obscured by the remaining fold, reducing the naturalness of the result
- Patients with realistic expectations about horizontal enlargement, who have reviewed before-and-after examples of the specific technique their surgeon uses
- Patients who can commit to sun avoidance at the inner corner scar site for 3–6 months post-operatively to reduce pigmentation risk
Should reconsider or wait
- Patients with very thin, delicate inner corner skin that the surgeon assesses as high-risk for visible scarring — the benefit-to-risk ratio narrows significantly
- Patients seeking a result that would appear incongruous with their remaining facial features, or who are seeking an appearance that does not suit their overall eye anatomy
- Patients under 20, whose aesthetic preferences may shift substantially — the irreversibility of the procedure carries more weight for younger candidates
Not a suitable candidate
- Patients with a personal or family history of keloid scarring involving facial skin — the inner corner is a high-tension site and keloid formation here is disfiguring and difficult to treat
- Patients seeking corrections larger than the anatomically safe limit for their fold size — over-correction produces an operated appearance and cannot be undone
- Patients who cannot commit to post-operative scar management and sun avoidance during the 12–18 month scar maturation window
Ethnic context: epicanthoplasty was developed within and for East Asian anatomy, and the majority of patients undergoing the procedure in Korea are of East Asian heritage. The fold itself is not a deformity — its surgical modification is an aesthetic choice. Non-Asian patients occasionally present with epicanthal folds caused by conditions unrelated to ethnicity (including certain congenital syndromes or trauma), and technique selection in those cases follows different anatomical logic. Surgeons practicing in Korea’s international patient clinics are experienced with this range; Gangnam-gu receives approximately 60% of medical tourists seeking aesthetic procedures,² concentrating relevant surgical volume in a single district.
Results and Longevity
Epicanthoplasty produces permanent results. Unlike non-incisional double eyelid techniques — which can partially relax over years as sutures loosen — epicanthoplasty involves physical excision or permanent rearrangement of tissue. Once healed, the inner corner remains open; there is no regression mechanism.
The visible change after swelling resolves (3–4 weeks for most of the swelling; residual swelling continues for 3 months) is typically a 2–4 mm increase in horizontal eye width per side. At conversational distance, this is noticeable but not dramatic. Photographs taken at close range show the change more clearly than a casual observer would register in person. Patients who evaluate results in high-resolution selfies immediately post-operatively tend to either over-estimate or under-estimate the change — the 3-month mark is more representative.
The lacrimal caruncle (inner pink tissue) becomes partially or fully visible after the fold is released. Some patients find this unfamiliar in the first weeks; most adapt to the new appearance within 1–2 months. A small number find the exposed caruncle aesthetically undesirable — this is worth considering before surgery, and surgeons can show reference images during consultation.
Scar evolution runs on a 12–18 month timeline. At 1 month, inner corner scars are often pink and slightly raised. By 6 months most scars have faded to near-skin-tone. The final scar result is not assessable until 12–18 months post-operatively. Silicone gel applied twice daily from week 3 onward, and consistent sun protection at the scar site, support optimal maturation.
There is no maintenance required after full healing. The result does not require touch-ups, repeat procedures, or any ongoing intervention.
Recovery Timeline
Significant swelling and bruising at the inner corners. Sutures in place. Cold compresses reduce swelling. Sleeping with the head elevated (two pillows) minimises fluid accumulation. Avoid rubbing or touching the suture sites. Most patients are comfortable indoors but not presentable for work or social settings.
Sutures removed, typically at day 5–7 depending on the surgeon's protocol. Swelling begins to decrease visibly after suture removal. The inner corner area will still appear pink and slightly raised. Light activity resumes; strenuous exercise, swimming, and saunas remain off-limits.
Most social swelling resolves. Many patients return to office work with makeup coverage if desired. The scar is still in early maturation — pink, slightly firm. Sun avoidance at the inner corner is important; SPF 50+ physical sunscreen applied carefully around (not directly on) the healing incision.
Swelling largely resolved; the functional result is visible. Silicone gel application typically begins around week 3–4 once the skin is fully closed and the surgeon confirms the surface is intact. The result visible at week 4 is close to the final outcome, though minor residual swelling continues.
Residual deep swelling fully resolved. This is the earliest reliable point to assess the aesthetic result. Scar continues to fade and soften. Most patients are satisfied with the appearance by this stage; some minor scar pinkness may remain.
Scar fully mature. Final assessment of scar quality is possible. Scars that remain hypertrophic or pigmented at this stage benefit from consultation with a dermatologist experienced in scar revision. The functional result (open inner corner) is stable and permanent.
Two practical notes for international patients: suture removal at day 5–7 means a minimum stay in Korea of approximately 7 days is advisable if epicanthoplasty is the primary procedure. When combined with double eyelid surgery, the combined recovery logistics are similar — one suture removal appointment covers both procedures. Most clinics offer post-operative check visits, and some provide teleconsultation for international patients after return home. Confirm these logistics during the consultation before confirming travel dates.