Table of contents

• Strabismus Surgery at a Glance
• What Is Strabismus Surgery?
• Who Is a Good Candidate for Strabismus Surgery?
• How Is Strabismus Surgery Performed?
• Why Visit Korea for Strabismus Surgery?
• Key Information for International Patients
• Which Are the Best Clinics in Korea for Strabismus Surgery?
• Strabismus Surgery From Start to Finish
• Alternatives to Strabismus Surgery
• How Can I Prepare for Strabismus Surgery?
• Aftercare Advice

Considering treatment in Korea? Everything you need to know e.g. — how to avoid scams, visas, interpreters, recovery tips — in our Medical Tourism Master Guide. Plan with confidence in minutes, not weeks!

Last updated: September 2026

Strabismus Surgery at a Glance

• What it does — Strabismus surgery repositions one or more eye muscles beneath the eye’s surface to improve misalignment, double vision, abnormal head posture, function, or appearance; it is not laser vision correction and does not operate inside the eyeball.
• Best candidates — Candidates need a stable, measurable deviation confirmed in person, including esotropia, exotropia, vertical or torsional strabismus, recurrent cases, or selected stable restrictive or paralytic patterns.
• Same-day surgery — Most procedures use general anesthesia and are outpatient, with discharge the same day once medically stable; selected cooperative adults may have an adjustable-suture technique with an awake adjustment phase.
• Recovery and results — Scratchiness, redness, tearing, soreness, and temporary double vision are common early effects; alignment is usually assessed after settling at 6–8 weeks, while fuller tissue healing takes about 2–3 months.
• Travel planning — International patients should plan about 7–10 days in Korea for in-person measurements, surgery, and an early postoperative review; long-haul travel should wait for surgeon clearance rather than follow a fixed flight timeline.
• Limits and repeat treatment — Improved cosmetic alignment does not guarantee restored stereopsis or complete relief of double vision, especially in longstanding or neurologic cases, and residual or recurrent deviation can require further treatment or reoperation.
• Korea-specific evidence — A Yonsei University retrospective series of 71 patients reported 76.1% alignment success at 6 months with one-stage topical-anesthesia adjustable surgery, but this does not prove adjustable sutures are better than fixed sutures or available at every hospital.

What Is Strabismus Surgery?

Strabismus surgery is an eye-muscle operation that repositions one or more muscles to correct eye misalignment. It aims to improve eye position, reduce double vision or an abnormal head posture, and support comfortable visual function or appearance. It is a surgical procedure, usually performed as same-day outpatient care.

Who Is a Good Candidate for Strabismus Surgery?

• Function-focused adults — Adults with stable esotropia, exotropia, vertical or torsional strabismus who have double vision, an abnormal head posture, difficulty using both eyes together, or a bothersome visible deviation.
• Children with a defined treatment plan — Children whose pediatric ophthalmology assessment identifies surgery as part of care alongside glasses and amblyopia treatment when needed.
• Restrictive, paralytic, sensory, or recurrent cases — Patients with a stable, measurable deviation after thyroid eye disease, cranial-nerve palsy, reduced vision in one eye, or previous eye-muscle surgery can be considered once the underlying condition and measurements are stable.
• Patients seeking alignment improvement — Surgery can improve eye position and, in selected cases, binocular function or double vision. It does not replace glasses or contact lenses when refractive correction remains necessary.

A complete in-person assessment must establish the cause and measure the deviation before a surgical dose is selected. New, fluctuating, or neurologically concerning double vision—especially with ptosis, headache, weakness, sensory symptoms, or systemic illness—needs neuro-ophthalmic or neurologic assessment rather than elective surgery. Active infection, uncontrolled illness that makes anesthesia unsafe, unstable thyroid eye disease, myasthenia gravis, orbital disease, or inconsistent measurements can make surgery inappropriate until stabilized. Good cosmetic alignment does not guarantee stereopsis or complete relief of diplopia, particularly in longstanding adult, neurologic, restrictive, or sensory strabismus.

How Is Strabismus Surgery Performed?

The operation repositions extraocular muscles beneath the conjunctiva, the clear membrane over the white of the eye. It is not laser vision correction and does not involve operating inside the eyeball. The method depends on the diagnosis, prism-diopter measurements, eye movements, prior surgery, and anesthesia plan.

• Muscle recession — The surgeon moves a muscle farther back on the eye to reduce its pulling effect. Recession is commonly used to weaken a muscle contributing to inward, outward, or vertical deviation.
• Resection or plication — Resection removes a measured segment before reattaching the muscle; plication folds and shortens it. Both strengthen a selected muscle, with the choice based on the surgeon's strategy and the individual pattern.
• Transposition procedures — The surgeon changes the direction of muscle pull to address selected paralytic or restrictive deviations, such as those caused by a cranial-nerve palsy or thyroid eye disease.
• Fixed sutures — Conventional surgery usually uses fixed sutures under general anesthesia. The final muscle position is set during the operation.
• Adjustable sutures — A temporary adjustment allows refinement after surgery or during an awake phase in cooperative patients. This is often considered for adults, reoperations, paralytic or restrictive patterns, and other less predictable deviations; it is not automatically better for every case. A Yonsei University retrospective series reported 76.1% alignment success at six months in 71 patients undergoing one-stage topical-anesthesia adjustable surgery, but its case selection and retrospective design cannot prove superiority over fixed sutures.
• One-eye or two-eye strategy — Surgery can involve one or both eyes. The decision follows the measured angle, gaze pattern, visual status, and the amount of correction required rather than which eye appears to turn.

Why Visit Korea for Strabismus Surgery?

Korea has published clinical experience in adjustable-suture strabismus surgery and population-level research on pediatric reoperation. These sources support discussion of specific techniques and long-term care realities, but they do not rank hospitals or establish that a particular method is best for an individual international patient. Confirm that the treating hospital has dedicated strabismus, orthoptic, anesthesia, and postoperative support for the exact case.

• Published adjustable-suture experience — A Korean Yonsei University series found one-stage topical-anesthesia adjustable surgery feasible in a retrospective cohort of 71 patients, with 76.1% alignment success at six months and no serious reported intraoperative or postoperative complications.
• Technique choice requires case-specific judgment — International observational evidence found higher short-term alignment success with adjustable versus nonadjustable sutures in an adult cohort (74.8% versus 61.3%), most clearly in reoperations for childhood strabismus. The study's observational design means it supports discussing adjustability in selected cases, not promising a better individual result.
• Korean pediatric follow-up data — Nationwide Korean claims research reported cumulative reoperation incidences of 8.43% after exotropia surgery and 15.59% after esotropia surgery among children aged 9 years or younger having initial surgery between 2008 and 2020. These population-level figures are not hospital benchmarks and cannot predict an adult's or an individual child's outcome.
• Important evidence limit — No reliable public Korean registry was identified that compares hospital-level alignment outcomes, complications, reoperation rates, or adjustable-suture availability for international patients.

Key Information for International Patients

• Minimum stay — Plan about 7–10 days in Korea for an elective case. This cautious clinical-logistics window allows in-person motility, refraction, and sensory testing; anesthesia review; surgery; an early adjustable-suture check or refinement when relevant; and a postoperative examination.
• Remote review before travel — Send recent ophthalmology and orthoptic notes, distance and near prism-diopter measurements, refraction, glasses prescription, prior operative reports, medication and allergy lists, and relevant neurologic imaging or records. Remote review supports triage, but a 2024 review of telemedicine assessment found that current remote methods remain less accurate than in-person examination for definitive planning.
• Flight timing — There is no authoritative universal commercial-flight interval after uncomplicated strabismus surgery. Fly only after the operating surgeon clears vision, pain, nausea, diplopia, and wound findings at the early review.
• Activity and itinerary — Surgery is usually same-day outpatient care, but do not plan driving, strenuous sightseeing, or visually demanding activities immediately afterward. Scratchiness, redness, tearing, and temporary double vision can disrupt reading, navigation, and screen use for days to weeks.
• Repeat visits — Alignment is commonly reassessed after early healing and stabilization at about 6–8 weeks. Arrange this visit with the Korean surgeon when feasible or with a strabismus specialist at home, supported by a written operative and discharge handoff.
• Urgent-care plan — Before booking, obtain the hospital's after-hours contact route and identify urgent ophthalmic care near the accommodation and at home.

Travel note: Do not schedule a fixed long-haul return flight immediately after surgery. Keep flights and accommodation flexible until the early postoperative examination is complete.

Which Are the Best Clinics in Korea for Strabismus Surgery?

Listed below are some of the best clinics in Korea for strabismus surgery.

1. BnVIIT Eye Clinic

If you are considering strabismus surgery, the available information does not confirm that BnVIIT Eye Clinic provides this procedure. Its documented strengths are individualized vision-correction planning and a broad range of refractive, implantable-lens, cataract, and orthokeratology services, rather than eye-muscle surgery.

• URL: BnVIIT Eye Clinic Website
• Location: Seoul
• Documented eye-care services:
  • Refractive options include SMILE, all-laser LASIK, and all-laser LASEK (PRK).
  • PIOL phakic intraocular lenses are available for some high refractive errors when laser procedures may not be suitable.
  • The clinic also documents cataract surgery and overnight Ortho-K (Dream Lens) options.
• Planning considerations:
  • Treatment customization is described as being based on your visual needs and lifestyle.
  • The clinic cites an A.I. Vision Correction Prediction System in its vision-correction planning.

2. Bright Eye Clinic

If you are exploring strabismus surgery in Korea, the available information does not establish that Bright Eye Clinic performs eye-muscle surgery. You may find its documented pre-surgery eye examinations and experience with laser vision correction and cataract care relevant to broader eye-health assessment, but these services are distinct from strabismus treatment.

• URL: Bright Eye Clinic Website
• Location: Seoul
• Eye examinations:
  • Pre-surgery examinations are described for assessing suitability for SMILE, LASIK, and cataract procedures.
  • General eye-health checkups are offered to monitor eye health and identify potential concerns.
• Documented vision and cataract care:
  • Laser vision-correction options include SMILE Pro using VisuMax 800, SMILE LASIK, LASIK, and LASEK.
  • Cataract care includes cloudy-lens removal, intraocular lens implantation, and a range of premium lens options tailored to visual needs.
  • Cataract removal is described as using a Lumera 700 microscope.

Strabismus Surgery From Start to Finish

1. Remote inquiry and record review — Contact the hospital with ophthalmology and orthoptic records, prism measurements, glasses prescription, prior surgery reports, medications, allergies, and relevant imaging. Ask whether English-language consultation, consent, discharge instructions, and a written handoff are available.
2. In-person strabismus assessment — The ophthalmologist confirms visual acuity and refraction, cover-test findings at distance and near, prism-diopter angle, motility in all gaze positions, binocular sensory status, head posture, and the cause of the deviation. Photographs and remote measurements do not replace this examination for final surgical dosing.
3. Cause-directed and anesthesia review — The team reviews thyroid eye disease, neurologic history, myasthenia gravis, prior eye operations, infection symptoms, systemic illness, and all medicines and supplements. Additional testing is arranged when the pattern suggests a neurologic, restrictive, or other underlying disorder.
4. Surgical planning and consent — The surgeon explains which muscle or muscles will be recessed, resected, plicated, or transposed; whether one or both eyes will be treated; fixed versus adjustable sutures; expected functional limits; and the possibility of undercorrection, overcorrection, persistent diplopia, or later reoperation.
5. Surgery day — Most operations use general anesthesia. In selected cooperative adults, adjustable techniques can involve topical anesthesia or an awake adjustment phase. The surgeon opens the conjunctiva, repositions the planned extraocular muscles, and closes the surface with dissolving sutures.
6. Immediate recovery and discharge — Most patients go home the same day once medically stable. Expect soreness, a gritty sensation, tearing, redness, and sometimes blood-tinged tears; temporary diplopia is also common while the brain adapts. Do not drive after anesthesia or while vision is blurred or double.
7. Early postoperative review — Return for the surgeon's scheduled check, including adjustment when an adjustable suture was used. The surgeon assesses vision, wound healing, eye position, pain, nausea, and suitability for international travel.
8. Home-country follow-up — Share the operative note and discharge plan with a local ophthalmologist, ideally a strabismus specialist. Alignment is generally judged after stabilization at roughly 6–8 weeks, while fuller tissue healing can take 2–3 months.

Alternatives to Strabismus Surgery

Non-surgical options can reduce symptoms, improve vision, or defer surgery, but they do not reliably correct every large, constant, restrictive, or functionally significant deviation. Surgery changes muscle position; alternatives generally address refractive error, visual development, double vision, or the underlying disease.

Glasses, Contact Lenses, and Prism

• Refractive correction — Glasses or contact lenses correct refractive error and can improve alignment in some patients, particularly children with accommodative esotropia.
• Prism glasses — Fresnel stick-on prism or ground-in prism can shift the image to reduce diplopia in selected stable deviations. Prism strength is limited by the size and pattern of the deviation.

Amblyopia Treatment

• Childhood visual development — Patching, atropine penalization, and accurate refractive correction treat amblyopia when indicated. They are often complementary to surgery rather than replacements for it.

Orthoptic Exercises

• Selected convergence disorders — Exercises can help specific diagnoses, such as convergence insufficiency. They do not reliably correct constant, large-angle, paralytic, or restrictive strabismus.

Botulinum Toxin

• Temporary muscle weakening — Injection into an extraocular muscle can be considered in selected acute, small-angle, or diagnostic situations. Effects are temporary and less predictable than a planned surgical repositioning.

Observation or Underlying-Disease Treatment

• Stable asymptomatic deviation — Observation can be appropriate when there is no troublesome diplopia, abnormal head posture, visual-development concern, or major functional impact.
• Unstable medical cause — Thyroid eye disease, cranial-nerve palsy, myasthenia gravis, orbital disease, or a neurologic cause should be treated or stabilized before elective alignment surgery is planned.

How Can I Prepare for Strabismus Surgery?

• Send complete records early — Provide recent eye and orthoptic examinations, exact distance and near prism measurements, refraction, prior operative notes, relevant imaging, and a list of allergies and medical conditions. Bring copies to the in-person assessment.
• Disclose every medicine and supplement — List prescribed anticoagulants, antiplatelets, NSAIDs, diabetes or weight-loss injections, vitamins, and herbal products. Do not stop prescribed blood thinners independently; the prescribing clinician, anesthesia team, and surgeon must create the plan.
• Report new symptoms immediately — Tell the clinic about new or fluctuating diplopia, droopy eyelid, headache, weakness, numbness, fever, respiratory symptoms, eye discharge, or sinus infection. These can require postponement or further diagnostic assessment.
• Follow fasting instructions exactly — The anesthesia team will give individualized instructions for food, clear fluids, and day-of-surgery medicines. Do not use generic fasting schedules from the internet.
• Avoid alcohol and smoking as directed — Tell the team about nicotine, vaping, alcohol, recreational substances, and sleep or anxiety medicines so anesthesia risks can be assessed accurately.
• Arrange a responsible adult and local accommodation — Plan escorted transport after anesthesia and accommodation within practical reach of the treating hospital for the early review. Do not drive yourself.
• Keep travel flexible — Schedule arrival early enough for in-person testing and anesthesia review, and retain flexibility for the postoperative check before long-haul travel.

Travel note: Confirm in writing that the actual treating hospital can provide orthoptic/binocular-vision testing, appropriate pediatric or adult strabismus expertise, anesthesia support, emergency contact arrangements, and English-language clinical documentation when needed.

Confirm all clinic-specific medication, fasting, transport, and travel requirements with the treating doctor; their individualized instructions take precedence over general guidance.

Aftercare Advice

Protect the operated eye, use prescribed treatment exactly as directed, and treat new vision loss or escalating pain as urgent.

• Drops, ointment, and hygiene — Use the prescribed drops or ointment on schedule. Wash hands before touching the eye area, avoid rubbing, and expect dissolving sutures to cause some surface irritation for several weeks.
• Expected early symptoms — Scratchiness, soreness, tearing, redness, blood-tinged tears, and transient double vision are often strongest during the first 1–2 days. Redness can remain visible for weeks, while the brain's adjustment to double vision often improves within about a week but can take longer.
• Driving and activity — Do not drive after anesthesia or while vision is blurred or double. Resume light routine activity only as visual comfort permits; work or school commonly requires around 1–2 weeks when diplopia and comfort allow.
• Water, heat, contact lenses, and makeup — Follow the surgeon's written schedule for swimming, hot tubs, saunas, strenuous exercise, eye makeup, and contact lenses. These restrictions vary with the operation and healing, so no single universal timeline is safe.
• Warning signs — Contact the clinic urgently for reduced vision, worsening pain after the expected early period, increasing redness or swelling, purulent discharge, fever, severe persistent nausea or vomiting, suddenly worse eye position, or severe or persistent diplopia.
• Result timing and follow-up — Attend the early postoperative review before travel and arrange follow-up at about 6–8 weeks. Alignment needs time to settle; fuller tissue healing can take 2–3 months, and residual or recurrent deviation can sometimes require further treatment.

Follow the treating doctor's written instructions over general advice, and contact the clinic promptly when recovery appears different from the expected course.