Lower Canthoplasty (Lower Eyelid Line) in Seoul

What is lower canthoplasty?

Lower canthoplasty is a procedure that gently lowers the outer half of the lower eyelid margin. In Korea it is widely known as mitteurim , and it is often described as creating a softer, gentler eye. In medical terms it is a controlled lowering of the lower lid, achieved by adjusting the structures that hold the lower lid in place.

The lower eyelid is supported by the lower tarsal plate, a thin firm strip along the lid margin; the capsulopalpebral fascia, a sheet of tissue that connects the lid to the muscles below the eye and pulls the lid down slightly when you look down; and the lateral canthal tendon, which anchors the outer corner to bone. By releasing and repositioning some of these connections on the outer side, the surgeon can lower the lid margin there by a small, planned amount.

The result is an eye that looks taller vertically, with a softer, less upturned outer contour. Because the change is at the lower lid, it complements rather than replaces work on the upper eyelid.

Who is a good candidate?

• A lower lid that rises high over the iris, making the eye look narrow vertically
• A steeply upturned outer eye that gives a sharp or stern expression
• Good lower-lid tone: the lid snaps back quickly when gently pulled down
• Healthy tear film and full eye closure
• A wish for a subtle softening rather than a dramatic change

It is usually not suitable if the lower lid is already low (with visible white beneath the iris), if the lid is lax, if the eye is prominent, if there is significant dry eye, or if you have had previous lower-lid surgery that weakened support. In those situations, lowering the lid further risks exposure of the eye's surface and an unnatural, pulled-down look.

What lower canthoplasty can and cannot do

It can increase the vertical height of the visible eye by a small amount, soften the outer contour, and balance an upturned tilt. It cannot make a short eye longer on its own; that is the role of lateral canthoplasty. It does not open the upper lid; if the upper lid sits low, ptosis correction may be the more effective choice. And it does not treat under-eye bags or dark circles, which are addressed by lower blepharoplasty or fat repositioning.

Like other corner and lid procedures, lower canthoplasty is affected by healing contraction. Some of the lowering may be lost in the months after surgery, and the amount varies between people.

Why the lower lid shapes expression

When people describe eyes as kind, sharp, tired or bright, they are often reacting to the lower lid as much as the upper. A lower lid that rises high across the iris narrows the eye vertically and, combined with an upturned outer corner, can give a watchful or severe look even at rest. A lid that curves gently downward toward the outer corner tends to read as relaxed and approachable.

The ideal is not the lowest possible lid. In a well-balanced eye, the lower lid margin typically sits near the lower edge of the iris, with little or no white visible beneath it. Beyond that point, lowering stops looking soft and starts to look pulled. Lower canthoplasty works within this narrow window, which is why millimeters matter.

Alternatives to consider

Lower canthoplasty is one way to change eye shape, but not always the right one. If your eyes look small mainly because the upper lid sits low, strengthening eye opening often makes a larger difference. If the eye is short horizontally, the outer or inner corner may be the better focus. If puffiness under the eye is changing the lower-lid line, treating the bags first may reveal a softer shape without lowering the lid at all. And sometimes a change to the upper crease alone rebalances the whole eye. Dr. Kim will explain which option, or combination, fits your anatomy and your goals, and why.

How Dr. Kim approaches design at Will Be

At Will Be, Dr. Kim Jun-young personally assesses, designs, operates and follows up. He measures where your lower lid sits relative to the iris, tests lid tone with gentle traction (the snap-back test), checks eye prominence and tear quality, and looks at the tilt of the eye in relation to your brows, cheekbones and upper eyelids.

The planned lowering is usually modest, and it is concentrated where it softens your expression most effectively, typically the outer third to half of the lid. The goal is harmony: an eye that looks gentle and open, without visible white beneath the iris. If the assessment suggests the lid cannot safely be lowered, you will be told so plainly.

How is the procedure performed?

1. Design. The segment to be lowered and the amount are marked while you look straight ahead.
2. Anesthesia. Local anesthesia, often with IV sedation.
3. Access. Most commonly, the surgeon works through the inner surface of the lower lid (the conjunctiva), which leaves no visible skin incision. In some designs, a small incision at the outer corner or below the lashes is added to adjust skin.
4. Release and repositioning. The capsulopalpebral fascia is identified and repositioned downward on the outer segment, which allows the lid margin to sit lower.
5. Anchoring. Where needed, the outer lid is re-anchored to maintain the new position and resist relapse, while preserving support so the lid still closes well.
6. Symmetry check and closure. Both sides are compared; fine absorbable or removable sutures are placed.

Anesthesia and surgery time

On its own, lower canthoplasty typically takes 40–60 minutes. With lateral canthoplasty or upper-lid surgery, total time is longer. It is performed under local anesthesia, often with light IV sedation, and you go home the same day. See anesthesia options.

How long does recovery take?

Risks and how they are minimised

Risks include relapse (the lid rising back toward its original position), over-lowering with visible white below the iris (scleral show), lid malposition or eversion (ectropion), dry eye, tearing, redness of the inner lid, asymmetry, bleeding and infection. Individual results vary.

These risks are minimised by strict candidate selection, modest design, preserving lid support, careful anchoring and regular follow-up. Protective ointment and lubricating drops are used during early healing. For more, see eyelid surgery risks.

Combining with other procedures

Lower canthoplasty is frequently combined with lateral canthoplasty, where the outer corner is extended at the same time, for a softer and slightly longer eye. It is also often done together with double eyelid surgery or ptosis correction, so the upper and lower lids are balanced in one plan. Combining procedures can mean a single recovery period, but it also means more swelling at once, so it is recommended only when each part is clearly justified.

Preparing and caring for your eyes

Before surgery, follow instructions on pausing medicines and supplements that increase bruising, and stop contact lenses as advised. Afterwards, sleep with your head raised, use cold compresses for the first 48 hours, apply prescribed ointment and drops, and avoid rubbing the eyes or pulling on the lower lids. Hold off on eye makeup, especially along the waterline, until your surgeon confirms healing, and avoid saunas and strenuous exercise for about two weeks.

Staying in Korea as an international patient

Plan about 7 days in Seoul: consultation, surgery, an early check, suture removal if needed around day 5–7, and a final review before flying. Tell your surgeon if you plan to fly long-haul soon after, so lubricating drops can be planned for the dry cabin air. Photo follow-up from home helps monitor the lid position as it settles. Take photos in the same light and at the same distance each time, looking straight ahead, so that small changes can be compared fairly. If you notice increasing redness, pain, discharge or a sudden change in lid position, contact the clinic promptly by KakaoTalk or phone.