Medical Tourism Blog
Correcting Crossed Eyes with Strabismus Surgery in Korea: Advanced Solutions for Eye Alignment

Table of contents
- Strabismus Surgery: A Closer Look
- Best Clinics in Korea for Crossed Eyes
- Medical Tourism for Strabismus Surgery in South Korea
- Cost Analysis: Korea vs. Global Destinations
- Patient Perspectives: After Strabismus Surgery
- Conclusion
- References
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This guide offers clear, thorough information for anyone researching "crossed eyes" (strabismus) and considering Strabismus Surgery—especially those looking abroad for treatment. You'll find detailed explanations of what strabismus is, the underlying causes, and how it can affect vision and life quality. We delve into the surgical procedure, the risks, and recovery expectations, with a special focus on South Korea’s position as a top medical tourism destination. Real patient stories illustrate both the functional and emotional transformations surgery can provide. With this knowledge, you’ll be better equipped to make informed choices about your eye health and treatment journey.
In this section, you'll gain a clear picture of what strabismus is, how to distinguish it from similar-looking conditions, what causes it, and the different ways it can present. You'll also learn about classic symptoms, potential long-term issues, and the array of non-surgical treatments available.
What is Strabismus? Definition and Types
Strabismus is an eye condition where the eyes aren’t aligned, meaning they don’t look in the same direction at the same time. It affects 2–4% of people, especially kids, often because the six tiny muscles that control the eyes don’t work together properly. The brain normally orchestrates these muscles, but if it can’t, strabismus can occur.
The direction of misalignment varies:
- Esotropia: an inward turn, or "crossed eyes"
- Exotropia: an outward turn, or "wall eyes" or "wandering eye"
- Hypertropia: an upward turn
- Hypotropia: a downward turn
Children can be born with strabismus (infantile strabismus), or it may develop later (acquired strabismus), often from injuries, neurological issues, or even uncorrected vision problems. Early diagnosis is vital for kids, because untreated strabismus can lead to amblyopia ("lazy eye") and permanent loss of depth perception. Parents should seek help if misalignment persists past three or four months of age.
Common Nicknames and Related Conditions
Strabismus is often described as "crossed eyes", "squinting eyes", "wandering eye", or "wall eyes". Not all apparent misalignments are true strabismus; sometimes it’s pseudostrabismus—a harmless illusion common in babies. A simple light reflection test in a photo can help tell the difference.
Amblyopia (lazy eye) is closely linked, especially in young children, and happens when the brain starts ignoring input from one eye. Double vision (diplopia) is more common in older kids and adults. Strabismus can thus create both visual and psychological challenges, impacting learning, social confidence, and long-term vision.
Causes, Symptoms, and Complications
Strabismus can have many causes, from unknown origins (idiopathic) to neurological disorders, uncorrected vision issues like strong farsightedness, anatomical quirks, injuries, or genetics. Both major and subtle risk factors—like premature birth or a family history—can play a role.
Symptoms range from obvious eye turning to compensatory head tilts, frequent squints, or complaints of double vision. Untreated, strabismus can lead to vision loss, especially in children, as well as issues with self-esteem and socialization.
Importantly, strabismus isn’t just a muscle problem—it's intertwined with brain-eye communication. Treatments must often enhance both eye muscle control and brain adaptation.
Non-Surgical Treatment Options
Early intervention—often with non-surgical methods—is key. Options include:
- Corrective lenses: Glasses or contacts may solve strabismus caused by focusing problems, especially in young children.
- Prism lenses: These bend incoming light and may relieve double vision.
- Patching: Covering the stronger eye can force the weaker one to work harder and improve.
- Eye exercises/vision therapy: Structured activities, sometimes computer-based, help the eyes and brain coordinate.
- Botulinum toxin (Botox) injections: Temporarily relax an overactive muscle; effective in select cases.
- Monocular occlusion: Patching or "fogging" one lens can suppress double vision in severe cases.
Strabismus treatment is often a combination of these approaches, tailored for each patient. Surgical intervention is considered when these measures do not achieve alignment.
Table 1: Types of Strabismus
| Type of Deviation | Description | Common Names | Age of Onset | Key Characteristics |
|---|---|---|---|---|
| Esotropia | Inward turning | Crossed Eyes | Infantile or Acquired | Convergent, can cause amblyopia, often with hypermetropia |
| Exotropia | Outward turning | Wall/Wandering Eye | Infantile or Acquired | Divergent, can be intermittent, causes amblyopia/diplopia |
| Hypertropia | Upward turning | - | Infantile or Acquired | Subtle vertical misalignment |
| Hypotropia | Downward turning | - | Infantile or Acquired | Less common vertical misalignment |
Strabismus Surgery: A Closer Look

Here, you'll get an accessible walkthrough of strabismus surgery—what it aims to accomplish, what happens during the procedure, the main risks, and what to expect afterward.
Goals of Strabismus Surgery
The core goal is to correct the eye’s misalignment for both improved vision and appearance. For children, it helps prevent vision loss and promote healthy visual development; in adults, it can resolve double vision and boost confidence.
The Surgical Procedure
Pre-operative Preparation
Before surgery, patients go through detailed eye exams, medical history checks, and, if necessary, adjustments of glasses or contacts. It’s important to stop certain medications and avoid eye irritants beforehand. On the day, comfort and relaxation are encouraged.
Anesthesia
Most children get general anesthesia for comfort and safety, while adults may have local anesthesia with sedation.
Surgical Techniques
Surgeons adjust the eye muscles:
- Recession: Weakens a strong muscle by moving its attachment back.
- Resection: Strengthens a weak muscle by shortening it.
- Plication: Folds and sutures the muscle without removing tissue.
- Adjustable suture: Allows fine-tuning alignment after surgery, mostly for adults.
Intraoperative Process
A speculum holds the eye open, the surgeon makes an incision in the conjunctiva, adjusts the muscles, and then closes the wound with dissolvable stitches. No facial skin incisions are made, and the eyeball isn’t removed.
Post-operative Care and Recovery
Patients usually go home the same day. It’s normal for the eye to be red, sore, or scratchy, and even for double vision to occur, but this usually resolves as healing progresses. Over-the-counter pain relief, protective eye shields at night, and careful hygiene are important. Regular follow-up visits are needed, and final alignment takes several months.
Potential Risks and Complications
While rare, complications can include:
- During surgery: Scleral perforation, lost or slipped muscles, and temporary effects on heart rate (oculocardiac reflex)
- After surgery: Infections, conjunctival scarring, eyelid position changes, refractive changes, and—rarely—more severe complications like anterior segment ischemia
- Functional: Unsatisfactory alignment or persistent double vision, occasionally requiring reoperation
Table 2: Main Surgical Risks
| Category | Complication | Description/Impact | Incidence |
|---|---|---|---|
| Intraoperative | Scleral Perforation | Needle goes too deep; may cause scarring or infection | 0.3–7.8% |
| Intraoperative | Lost/Slipped Muscle | Muscle detaches or pulls back, may need urgent intervention | Rare (<0.02%) |
| Intraoperative | Oculocardiac Reflex | Heart slows during surgery | 14–90% |
| Post-op | Infection | Usually mild but can be serious | 0.14% |
| Post-op | Conjunctival Scarring | Redness, very rarely functionally significant | >90% subtle |
| Post-op | Eyelid changes | Lid retraction, more common with certain muscles | Up to 94% |
| Post-op | Alignment issues | Sometimes more surgeries needed for perfection | Common reason |
Success Rates and Reoperation
Most patients (80–88% of adults, about 87% of children) achieve good outcomes with a single surgery. Sometimes extra procedures are needed if the eyes drift or don’t align perfectly. Recovery is a dynamic process; final results may evolve over months.
Best Clinics in Korea for Crossed Eyes
Listed below are the best clinics in Korea for crossed eyes:
| Clinic Name | Key Features | Special Techniques |
|---|---|---|
| BnVIIT Eye Clinic | Over 30 years of ophthalmology experience; 550,000 successful eye surgeries; cutting-edge A.I. Vision Correction Prediction System; strabismus-focused care with a comprehensive range of vision correction options. | SMILE (minimally invasive), all-laser LASIK, all-laser LASEK (PRK), PIOL implantable lenses for higher prescriptions, cataract surgery with intraocular lens replacement, Orthokeratology (Ortho-K/Dream Lens). |
| Bright Eye Clinic | Advanced eye care supported by world-class technology and experienced specialists; precise diagnostics and individualized planning; comprehensive eye exams, including detailed pre-surgery assessments and regular eye health checkups designed to detect problems early and guide the most appropriate care pathway. | SMILE Pro using the VisuMax 800 system; SMILE LASIK, LASIK, and LASEK for varying corneal and visual profiles; cataract removal with Lumera 700 microscope; personalized intraocular lens (IOL) implantation with multiple premium lens choices. |
BnVIIT Eye Clinic
BnVIIT Eye Clinic, part of the B&VIIT Eye Center in Gangnam, Korea, is a trusted choice for patients seeking care for crossed eyes, backed by over 30 years of ophthalmology experience and 550,000 successful eye surgeries. Known for its cutting-edge A.I. Vision Correction Prediction System, the clinic combines advanced technology with careful evaluation to guide treatment planning and support safer, more predictable outcomes.
In addition to its strabismus-focused care, BnVIIT offers a comprehensive range of vision correction options, making it convenient for patients who may also need refractive correction alongside their crossed-eye treatment plan. Services include minimally invasive SMILE, all-laser LASIK, all-laser LASEK (PRK), PIOL implantable lenses for higher prescriptions, cataract surgery with intraocular lens replacement, and Orthokeratology (Ortho-K/Dream Lens) for non-surgical daytime freedom from glasses. Each approach can be customized to match individual visual needs and lifestyle goals.
Find more about this clinic here: BnVIIT Eye Clinic Website
Bright Eye Clinic
Bright Eye Clinic in Gangnam is known for advanced eye care supported by world-class technology and experienced specialists, drawing patients from Korea and abroad. For people seeking evaluation and treatment options related to crossed eyes, the clinic’s emphasis on precise diagnostics and individualized planning is backed by comprehensive eye exams, including detailed pre-surgery assessments and regular eye health checkups designed to detect problems early and guide the most appropriate care pathway.
Alongside its diagnostic capabilities, Bright Eye Clinic provides a broad spectrum of high-precision vision procedures that reflect its surgical expertise and technology-driven approach. Refractive options include SMILE Pro using the VisuMax 800 system, SMILE LASIK, LASIK, and LASEK for patients with varying corneal and visual profiles, while cataract services include cataract removal with the Lumera 700 microscope and personalized intraocular lens (IOL) implantation with multiple premium lens choices. This combination of advanced equipment and professional care supports high-quality outcomes and a patient experience centered on safety, accuracy, and long-term visual function.
Find more about this clinic here: Bright Eye Clinic Website
Medical Tourism for Strabismus Surgery in South Korea
Let’s look at why South Korea is so popular for this surgery, the steps international patients can expect, and which clinics stand out.
Why South Korea?
South Korea’s advanced medical technology, highly skilled surgeons, excellent hospitals, and patient-centered services (often in English) make it an exceptional choice. Costs are competitive compared to the West, and bundled packages often help keep things clear and stress-free.
The Patient Journey: International Patients
Step 1: Remote Consultation Arrange an online assessment to discuss your case and coordinate next steps, often with the help of medical tourism agencies.
Step 2: Arrival and Assessment You’ll undergo a comprehensive in-person exam to customize your plan.
Step 3: Pre-Surgery Prep Follow instructions regarding medications, contact lenses, food, hygiene, and arrange transportation.
Step 4: Surgery Day Register, meet your doctor and anesthesia team, then undergo the procedure.
Step 5: Recovery in Korea Expect a rapid recovery, with side effects mostly resolving within a few weeks. Attend your follow-up visit (typically after 1–2 weeks).
Step 6: Returning Home Ongoing monitoring and occasional local care may be needed; serious problems are rare but possible.
South Korea’s support infrastructure—including translation services and appointment coordinators—helps minimize barriers for international patients.
Top Clinics and Hospitals
Notable centers include:
- Bright Eye Clinic (Seoul): Renowned for technology (VisuMax 800, Lumera 700) and thorough, patient-centered care
- BnVIIT Eye Clinic: Over 550,000 surgeries, leading in AI-powered planning
- Severance Hospital: World-class team, high volume, robotic techniques
- SNUBH: Innovative “smart hospital” systems, language assistance
- Kim’s Eye Hospital: Specialized pediatric/strabismus center, hundreds of procedures annually
Specializing in strabismus with high surgical volumes, these institutions are trusted globally.
Table 4: Leading Korean Clinics Overview
| Clinic Name | Location | Notable Features | Technologies |
|---|---|---|---|
| Bright Eye Clinic | Gangnam, Seoul | Advanced tech, international patients | VisuMax 800, Lumera 700 |
| BnVIIT Eye Clinic | Gangnam, Seoul | 550,000+ surgeries, AI planning | SMILE, LASIK, LASEK |
| Severance Hospital | Seoul | Top global ranking, robotic surgery | Full ophthalmology |
| SNUBH | Seoul | Smart hospital, international dept. | BESTcare system |
| Kim’s Eye Hospital | Seoul | Strabismus experts, high case numbers | - |
Cost Analysis: Korea vs. Global Destinations

How does Korea’s pricing compare with other hotspots for medical tourism?
Cost Breakdown in Korea
Strabismus surgery in Korea usually costs $1,500–$3,800 USD (2,177,000–5,515,000 KRW), including assessments, surgery, anesthesia, follow-up, with occasional extras like airport transfers. Experienced surgeons or more complex cases may cost more, and a 10% deposit is typical.
Transparent, bundled pricing is a hallmark—patients are less likely to face hidden fees compared to certain other countries.
Comparison with Other Countries
| Country | Typical Cost (USD) | Notable Details |
|---|---|---|
| South Korea | $1,500–$3,800 | Bundled, modern tech, bilingual support |
| USA | $5,000–$10,000 | Costs rise with additional surgery |
| Mexico | $1,200–$4,000 | Very affordable, but vet clinics carefully |
| Turkey | $1,900–$4,700 | Similar to Korea, watch for added costs |
| Thailand | $1,919–$4,000 | Popular, but verify inclusions |
| India | $800–$2,000 | Least expensive, balance quality and price |
| UK | $3,800–$8,900 | Comprehensive packages available |
| Australia | $2,500–$5,100 | High quality, modest pricing |
| Singapore | $2,900–$5,800 | Premium care, modern facilities |
Korea’s prices are competitive—lower than western nations, similar or slightly above some Asian countries—but stand out for quality, transparency, and advanced technology.
Additional Costs for Medical Tourists
Remember to budget for:
- Airfare: $500–$1,500 USD
- Accommodation: For 1–2 weeks, usually not included
- Local transportation and meals
- Medical emergencies: Rare complications could require more care
- Reoperation: Occasionally needed; find out in advance about pricing for further care
Using established medical tourism agencies can help you avoid hidden fees and manage logistics efficiently.
Patient Perspectives: After Strabismus Surgery

With first-hand accounts, this section shows the real-world impact of surgery.
Functional Improvements
Most patients notice their eyes work together better, with binocular vision and depth perception restored. Double vision resolves for most, leading to everyday benefits—like improved hand-eye coordination. Children may avoid learning delays, while adults drive, read, and socialize with new ease.
Psychosocial Benefits
Appearance matters—after surgery, patients commonly report profound boosts in confidence, self-esteem, and social comfort. Bullying and self-consciousness fade for many children, and adults describe feeling more comfortable at work and in relationships.
Long-Term Outcomes
Most patients enjoy long-lasting results, but some require a second surgery or further therapy. The healing and adaptation process is dynamic, so don’t judge too soon—your "final" result may evolve for months as your brain adapts.
Real Patient Experiences
Stories range from easy, painless experiences to dramatic life improvements. Some kids go from struggling in school to thriving, while adults regain comfort in social settings. Patient caution is advised if considering cosmetic eye procedures outside ophthalmology—complications can and do occur, so expert care is essential.
Conclusion
Strabismus impacts both vision and confidence, but with early intervention and the right treatment, it’s highly manageable. Strabismus Surgery in South Korea combines world-class skill, advanced technology, and cost-effectiveness for both local and international patients. Patients benefit from thoughtful support, excellent medical care, and a transparent process.
Summary of Key Insights
Strabismus is a significant medical concern affecting vision and personal well-being, but surgery offers high success rates and meaningful life changes. South Korea is a top international choice for its expert surgeons, advanced technology, competitive pricing, and seamless patient experience. Early diagnosis, clear expectations during recovery, and ongoing care are crucial for optimal, lasting results.
References
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