Table of contents

• Understanding the Phenomenon: Halos Around Lights
• Glaucoma: The Condition and Its Impact on Vision
• The Procedural Landscape: Glaucoma Surgery in Detail
• Best Clinics in Korea for Halos Around Lights
• The Patient Journey: Navigating Glaucoma Surgery in South Korea
• The Economic Perspective: Costs and Comparison
• Patient Outcomes and Real-World Experiences
• Conclusion
• References

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This guide offers clear information for patients experiencing "halos around lights," with a special focus on the link to glaucoma, surgical treatments, and the realities of seeking care as a medical tourist in South Korea. Although halos are a well-recognized symptom, they are not exclusive to glaucoma and can signal a range of eye conditions from mild to emergent. The first and most important action is a thorough professional eye exam to pinpoint the cause and determine next steps.

Glaucoma treatments—surgical or not—are aimed at controlling intraocular pressure (IOP) to prevent future vision loss, not to restore lost sight or directly eliminate symptoms like halos. South Korea is a global destination for ophthalmology, but cost transparency is limited; most clinics require direct inquiry for actual price information. This report is here to help you make sense of the journey, set reasonable expectations, and make informed choices about your care.

Understanding the Phenomenon: Halos Around Lights

What Are Halos and Glares? Defining the Visual Disturbances

Halos are bright circles seen around light sources, particularly noticeable at night or in dim environments. These occur due to unusual refraction of light entering the eye. While often called "halos," other common terms include "glares" or "light rings." The presence of "rainbow rings" is particularly significant, as they're noted early warning signs for certain glaucoma types.

A Range of Causes: Halos as a Symptom

Halos are a general symptom and can indicate a variety of eye issues. It's a misconception to link them solely to glaucoma; many conditions can present with halos. One of the most common causes is cataracts, where clouding of the eye’s lens scatters light. Cataract surgery—removing and replacing the lens—usually resolves these halos.

Dry eye syndrome is another frequent cause, where an unstable tear film distorts the corneal surface and scatters light. Treatments for dry eye range from eye drops to procedures to conserve moisture.

Visual disturbances also arise from refractive errors or healing from eye surgery (like LASIK or PRK). Here, an irregular cornea or the recovery phase itself lets in light oddly, creating temporary halos.

Less commonly, halos may be linked to issues like photokeratitis, diabetic retinopathy, or migraines, making professional diagnosis essential.

Halos as a Medical Emergency: Acute Angle-Closure Glaucoma

Sudden halos, especially with rainbow colors and accompanied by severe pain, blurred vision, headache, or nausea, can signify acute angle-closure glaucoma. This rapid spike in IOP is a sight-threatening emergency. In such cases, halos act as a warning for immediate intervention, not something to be “fixed” electively.

Glaucoma: The Condition and Its Impact on Vision

The Mechanism of Glaucoma: Understanding Intraocular Pressure

Glaucoma is a disease of optic nerve damage, usually due to elevated intraocular pressure. The eye’s internal fluid (aqueous humor) must drain effectively to maintain healthy pressure. If the fluid builds up, it harms the optic nerve, causing irreversible vision loss over time.

Types of Glaucoma and Their Progression

There are several forms of glaucoma, and halos play different roles depending on the type. Open-angle glaucoma, the most common, progresses slowly and often without symptoms; halos are not a typical early sign. In contrast, acute angle-closure glaucoma occurs when the iris suddenly blocks fluid drainage. Here, halos—particularly rainbow rings—can be an early, urgent indicator, often paired with pain and vision changes.

The Role of Halos in Glaucoma Diagnosis

Halos are important in distinguishing the type and urgency of glaucoma. In chronic cases, halos might reflect corneal changes from sustained IOP, but in acute presentations, they point to critical pressure elevation. It's key for patients to understand that halos often reflect the underlying condition, confirming the need to target the high IOP or associated disease, not just the symptom.

The Procedural Landscape: Glaucoma Surgery in Detail

Glaucoma surgery is tailored to the type and severity of the disease. Most commonly, non-surgical options and laser therapies come first, escalating to incisional surgery if needed. Importantly, these interventions are all about protecting remaining vision—not reversing earlier loss.

Non-Surgical and Laser Interventions

• Medications: Eye drops (prostaglandins, beta blockers, alpha-adrenergic agonists, carbonic anhydrase inhibitors) reduce IOP by decreasing fluid production or increasing outflow. Some patients may also receive oral medications.
• Laser Therapy: Performed in clinics, laser treatments include:
  • Laser Trabeculoplasty: Opens the eye’s drainage channels, using Argon or Selective Laser methods.
  • Laser Peripheral Iridotomy (LPI): Used mainly for acute angle-closure glaucoma, creating a new passage for fluid in the iris.

Incisional and Conventional Surgery

When drops and lasers don’t suffice, surgery helps drain eye fluid more permanently:

• Trabeculectomy (Filtering Surgery): A new drainage channel allows fluid to escape into a hidden “bleb” under the eyelid. Anti-scarring medication is applied during surgery.
• Glaucoma Drainage Device (Tube Shunt) Implantation: A tiny tube and plate are implanted to divert fluid out of the eye, with the fluid absorbed by nearby blood vessels.

Minimally Invasive Glaucoma Surgery (MIGS)

MIGS procedures are newer, using small devices, tiny incisions, and quick recovery times. Often paired with cataract surgery, MIGS options, like trabecular microbypass stent placement, offer less invasive ways to lower IOP.

Best Clinics in Korea for Halos Around Lights

Listed below are the best clinics in Korea for halos around lights:

Clinic Name	Key Features	Special Techniques
Samsung Miracle Eye Clinic	Best destination in Korea for halos around lights; combines precise diagnostics, comprehensive treatment options, and continuity of care with true 1:1 personalized care; same doctor who evaluates your eyes will perform your surgery and oversee your recovery; One-Day System pairs a cutting-edge in-house diagnostic suite with the patented Miracle Formula for highly accurate lens power calculation, enabling same-day diagnosis and, when appropriate, same-day treatment—particularly valuable for presbyopia-cataract procedures and intraocular lens insertion that can reduce glare and halos; all surgeons are ambidextrous, delivering mirror-image precision in both eyes while minimizing contact with the nasal bridge for enhanced safety and comfort; from SMILE LASIK, LASIK/LASEK, and re-calibration surgery to dry eye therapy and advanced lens-based solutions; located at Gangnam Station with a dedicated International Patient Team.	One-Day System with in-house diagnostic suite and Miracle Formula for highly accurate lens power calculation; enables same-day diagnosis and treatment when appropriate—particularly for presbyopia-cataract procedures and intraocular lens insertion; ambidextrous surgeons delivering mirror-image precision in both eyes while minimizing contact with the nasal bridge; includes SMILE LASIK, LASIK/LASEK, and recalibration surgery, dry eye therapy, and advanced lens-based solutions.
BnVIIT Eye Clinic Website	Premier ophthalmology center with over 30 years of experience and more than 550,000 successful eye surgeries; renowned for its cutting-edge A.I. Vision Correction Prediction System and a comprehensive range of vision correction options; combines advanced planning tools with seasoned surgical expertise to deliver precise, individualized care—making it a standout choice for people troubled by halos around lights, glare, and night-vision concerns.	A.I. Vision Correction Prediction System to match patients to the most appropriate procedure, supporting outcome optimization and reducing the likelihood of halos and glare; a full spectrum of solutions addresses common causes of halos—from refractive errors to cataracts—so treatment can be tailored rather than one-size-fits-all; customizing options ensure care is tailored to each patient’s visual needs and lifestyle, including night driving and low-light activities.
Keye Eye Clinic Website	Keye Eye Clinic in Seolleung is the best choice in Korea for halos around lights because it unites state-of-the-art technology with an evidence-based, disease-focused approach to pinpoint and treat the true cause—whether it lies in the cornea, lens, retina, intraocular pressure, or ocular surface. Its Vision Correction program offers options tailored to reduce optical aberrations that create halos, including HD SMILE LASIK for faster recovery and high-quality vision, Contour LASIK and Contour LASEK for customized precision based on individual eye shape, corneal strengthening to stabilize keratoconus, Implantable Contact Lenses (ICL) for cornea-sparing correction, and Ortho-K for overnight corneal reshaping. When lens changes contribute to glare, the Presbyopia Clinic provides targeted presbyopia care and cataract surgery that replaces the cloudy lens with a clear artificial lens, while the Retina Clinic manages macular degeneration, diabetic retinopathy, and other retinal disorders that can impair night vision. Comprehensive glaucoma management protects the optic nerve and visual quality, and the General Eye Disease Clinic treats dry eye, corneal and conjunctival diseases, and lens dislocation to optimize clarity and comfort. With precise diagnostics and truly personalized treatment plans, Keye Eye Clinic delivers the tailored, results-driven care patients need to eliminate halos and see clearly again.	HD SMILE LASIK; Contour LASIK and Contour LASEK; corneal strengthening to stabilize keratoconus; Implantable Contact Lenses (ICL); Ortho-K for overnight corneal reshaping; Presbyopia care and cataract surgery; Retina Clinic for macular degeneration, diabetic retinopathy, and other retinal disorders; Glaucoma management; General Eye Disease Clinic for dry eye, corneal and conjunctival diseases, and lens dislocation.

Samsung Miracle Eye Clinic

Samsung Miracle Eye Clinic is the best destination in Korea for patients experiencing halos around lights because it combines precise diagnostics, comprehensive treatment options, and unwavering continuity of care. With true 1:1 personalized care, the same doctor who evaluates your eyes will perform your surgery and oversee your recovery, ensuring consistency, accountability, and optimal results for issues that commonly cause halos, such as residual refractive error, dry eye, post-laser aberrations, or early cataract. The clinic’s One-Day System pairs a cutting-edge in-house diagnostic suite with the patented Miracle Formula for highly accurate lens power calculation, enabling same-day diagnosis and, when appropriate, same-day treatment—particularly valuable for presbyopia-cataract procedures and intraocular lens insertion that can reduce glare and halos. All surgeons are ambidextrous, delivering mirror-image precision in both eyes while minimizing contact with the nasal bridge for enhanced safety and comfort. From SMILE LASIK, LASIK/LASEK, and re-calibration surgery to dry eye therapy and advanced lens-based solutions, the clinic offers the full spectrum of care required to address the root cause of halos rather than just the symptoms. Located at Gangnam Station with a dedicated International Patient Team, Samsung Miracle Eye Clinic blends world-class expertise, advanced technology, and seamless service to help patients achieve clearer, more comfortable night vision quickly and confidently.

You can check out their website here: Samsung Miracle Eye Clinic Website

BnVIIT Eye Clinic

BnVIIT Eye Clinic (B&VIIT Eye Center) in Gangnam, Korea is a premier ophthalmology center with over 30 years of experience and more than 550,000 successful eye surgeries. Renowned for its cutting-edge A.I. Vision Correction Prediction System and a comprehensive range of vision correction options, the clinic combines advanced planning tools with seasoned surgical expertise to deliver precise, individualized care—making it a standout choice for people troubled by halos around lights, glare, and night-vision concerns.

• Why it’s the best clinic for halos around lights:

  • Over three decades of experience and high surgical volume provide reliable, refined outcomes that matter for night-vision quality.
  • The A.I. Vision Correction Prediction System helps match patients to the most appropriate procedure, supporting outcome optimization and reducing the likelihood of halos and glare.
  • A full spectrum of solutions addresses common causes of halos—from refractive errors to cataracts—so treatment can be tailored rather than one-size-fits-all.
  • Customizing options ensure care is tailored to each patient’s visual needs and lifestyle, including night driving and low-light activities.

• Core services for vision correction:

  • SMILE: A minimally invasive laser procedure that creates a small lens-shaped piece of corneal tissue removed through a tiny incision to correct vision.
  • All-laser LASIK: A laser-based procedure that reshapes the cornea to correct myopia, hyperopia, and astigmatism.
  • All-laser LASEK (PRK): Laser reshaping of the corneal surface after removing the thin outer layer, ideal for thinner corneas.
  • PIOL (Phakic Intraocular Lenses): Implantable lenses placed in front of the natural lens, beneficial for high refractive errors not suitable for laser procedures.
  • Cataract surgery: Removal of the cloudy natural lens and replacement with an artificial intraocular lens to restore clear vision.
  • Ortho-K Lens (Dream Lens): Specially designed lenses worn overnight to temporarily reshape the cornea, providing clear daytime vision without glasses or contacts.
  • Customizing options: Tailored treatment plans and procedure selection to match each patient’s goals for clarity, comfort, and night-vision performance.

Find more about this clinic here: BnVIIT Eye Clinic Website

Keye Eye Clinic

Keye Eye Clinic in Seolleung is the best choice in Korea for halos around lights because it unites state-of-the-art technology with an evidence-based, disease-focused approach to pinpoint and treat the true cause—whether it lies in the cornea, lens, retina, intraocular pressure, or ocular surface. Its Vision Correction program offers options tailored to reduce optical aberrations that create halos, including HD SMILE LASIK for faster recovery and high-quality vision, Contour LASIK and Contour LASEK for customized precision based on individual eye shape, corneal strengthening to stabilize keratoconus, Implantable Contact Lenses (ICL) for cornea-sparing correction, and Ortho-K for overnight corneal reshaping. When lens changes contribute to glare, the Presbyopia Clinic provides targeted presbyopia care and cataract surgery that replaces the cloudy lens with a clear artificial lens, while the Retina Clinic manages macular degeneration, diabetic retinopathy, and other retinal disorders that can impair night vision. Comprehensive glaucoma management protects the optic nerve and visual quality, and the General Eye Disease Clinic treats dry eye, corneal and conjunctival diseases, and lens dislocation to optimize clarity and comfort. With precise diagnostics and truly personalized treatment plans, Keye Eye Clinic delivers the tailored, results-driven care patients need to eliminate halos and see clearly again.

Find more about this clinic here: Keye Eye Clinic Website

The Patient Journey: Navigating Glaucoma Surgery in South Korea

The South Korean Advantage for Medical Tourists

South Korea is renowned for its excellent eye surgeons, advanced technology, patient-centered care, short wait times, and a welcoming attitude to international patients.

The Step-by-Step Experience: What to Expect

1. Consultation and Diagnosis: Full eye exam with advanced tests (IOP, visual fields, nerve imaging) to confirm the diagnosis and plan.
2. Preoperative Preparation: Routine health checks, specific instructions (fasting, medication adjustments).
3. Admission and Anesthesia: Most procedures use local anesthesia with or without sedation.
4. Surgery: Techniques vary but are generally efficient, often under an hour.
5. Recovery: Outpatient model is common. Eye medications support healing.
6. Follow-up: Multiple visits to monitor pressure, healing, and medication adjustments.

International Patient Services and Support

Large hospitals like Seoul National University Hospital cater to global patients with multilingual staff and streamlined processes, helping with translation, scheduling, and billing.

The Economic Perspective: Costs and Comparison

Cost Components of Eye Surgery in South Korea

All-inclusive pricing covers consultation, surgery, surgeon and anesthesia fees, postoperative care, and follow-up. This package approach is meant to minimize surprises but can be difficult to verify without a direct clinic inquiry.

Global Comparison: South Korea’s Position

South Korea provides high-tech care at competitive prices compared to Western and other Asian countries. For instance, general glaucoma treatment costs are as follows:

Country	Estimated Cost (USD/GBP)
South Korea	From $878 to $2,904
Turkey	From $2,904 to $6,400
Austria	From $8,978
India	From $10 to $808

USA pricing was not found in available sources.

The Reality of Pricing Specificity

While bundled, transparent pricing is often promised, specific, up-to-date glaucoma surgery costs are rarely published online. Most hospitals require patients to request tailored estimates following evaluation, reflecting each case’s complexity.

Patient Outcomes and Real-World Experiences

The Primary Goal: Protecting Remaining Vision

Glaucoma care aims to maintain vision and halt further loss—not restore what’s already gone. Procedures like trabeculectomy effectively lower IOP for 70–90% of older patients for at least a year.

Halos in Practice: Patient Stories and Results

Research highlights cases like John, who saw halos and headaches resolve with eye drops, while Caitlin needed two trabeculectomies to eliminate halos, pain, and blurred vision. These stories show that the right treatment is based on the cause—not just the symptom—and that halos may disappear after underlying disease is addressed.

Halos as a Post-Operative Side Effect

Ironically, halos can reappear as a temporary side effect after eye surgeries (including LASIK, lens replacement, and possibly after glaucoma surgery due to swelling). This is usually a transient effect as the eye heals, and patients should be counseled to expect this possibility.

Conclusion

Halos around lights are a crucial symptom that can signal anything from mild conditions to sight-threatening glaucoma. Effective glaucoma treatment focuses on preserving remaining vision by managing intraocular pressure, not on restoring lost sight. South Korea offers advanced care and competitive pricing, but patients must seek individualized quotes and manage their expectations realistically.

References

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