Eye Corner Surgery (Canthoplasty)

Clinical Overview & Guide

Eye Corner Surgery (Canthoplasty) encompasses anatomical procedures that reshape the inner corner (medial canthus) and outer corner (lateral canthus and lower lateral lid margin) to improve horizontal eye length, vertical aperture, and canthal tilt in harmony with overall facial proportions. At IBON Plastic Surgery, Dr. Ju-Chan Kim (Board-Certified Plastic Surgeon) carefully evaluates intercanthal distance, lacrimal caruncle exposure, orbital rim position, and lateral canthal tendon tension to prevent overcorrection, visible scarring, or postoperative re-adhesion.

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Comparison of Canthoplasty Procedures

Canthoplasty techniques can be performed individually or combined depending on the patient's medial and lateral eye anatomy:

Procedure	Target Anatomy & Mechanism	Primary Aesthetic & Structural Outcome
Epicanthoplasty (Inner Eye Corner Surgery)	Releases medial epicanthal fold skin and orbicularis muscle tension, repositioning the inner canthus	Opens a blunted or wide-set inner corner and allows smooth medial continuation of the double eyelid crease
Lateral Canthoplasty (Outer Corner Extension)	Mobilizes the lateral canthal tissue and secures it to the lateral orbital periosteum	Extends horizontal eye length laterally while minimizing mucosal re-adhesion
Dual Canthoplasty (Lateral + Lowering)	Combines horizontal lateral extension with downward repositioning of the outer one-third of the lower eyelid	Softens an upward-slanted outer eye corner and simultaneously expands both horizontal and lower-outer vertical eye dimensions

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Anatomical Design Principles & Clinical Considerations

• Balanced Intercanthal Ratio & Caruncle Exposure: During Epicanthoplasty, excessive exposure of the pink lacrimal caruncle can create an unnatural or harsh expression. Vector redirection is calibrated to match the patient's nasal bridge and intercanthal width.
• Periosteal Fixation to Prevent Re-Adhesion: Simple skin-only incisions at the outer corner often re-attach during wound healing. Both Lateral Canthoplasty and Dual Canthoplasty at IBON Plastic Surgery utilize deep ligament release and secure periosteal fixation to maintain stable long-term contour.
• Clinical Guides & References: For detailed candidacy criteria and recovery expectations, read our guides on Epicanthoplasty Procedure, Candidacy, and Recovery and Dual Canthoplasty: Treating the Outer Corners. Surgical protocols follow clinical standards from the Korean Society of Plastic and Reconstructive Surgeons (KSPRS) and the Archives of Craniofacial Surgery (ACFS).

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Surgical & Recovery Overview

• Procedure Time: Approximately 30 to 60 minutes (depending on single vs. combined corner procedures)
• Anesthesia: Local anesthesia with short-acting intravenous sedation
• Suture Removal: Days 5 to 7 post-op (absorbable sutures are used concurrently where indicated)
• Recovery Timeline: Mild conjunctival swelling (chemosis), slight redness, or a feeling of tightness at the outer corner may appear initially and settles over 1 to 3 weeks. To determine which canthoplasty vector suits your eye proportions, schedule a 1:1 Online Consultation.

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Frequently Asked Questions (FAQ)

Q. Will the outer corners stick back together after Lateral or Dual Canthoplasty?
A. Re-adhesion typically occurs when only superficial skin is cut and sutured under tension. By releasing the deeper lateral retinacular structures and anchoring the mobilized canthal tissue directly to the lateral orbital periosteum, Dual Canthoplasty significantly reduces the risk of re-attachment or blunted corner deformity.

Q. Can Canthoplasty be performed as a standalone procedure without Double Eyelid Surgery?
A. Yes. Patients who wish to keep their existing double eyelid crease—or maintain a natural monolid—while relieving a tight medial epicanthal fold (Epicanthoplasty) or softening a steeply upturned outer eye angle (Dual Canthoplasty) can undergo canthoplasty independently.