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What’s New

About Us

BGN Group is the largest group of ophthalmology clinics in South Korea and is equipped with the most advanced technology currently used in laser and cataract surgery (FDA & CE approved).

A combination of our technology and highly skilled professionals employed by our clinic has allowed us to claim over 400 000 successful eyesight correction cases so far.

We ensure that our patients get the best post-operative results by constantly developing new technologies and introducing new equipment.

  • BGN Eye Clinic Jamsil Lotte Tower Branch

    5 doctors, 40 medical staff

    Chairman Park Seh Kwang

    • Korean Ophthalmological Association Eye Specialist, Ph. D.

    • Member of the Korean Ophthalmological Society

    • Member of Korean Society of Cataract and Refractive Surgery (KSCRS)

    • Member of the Korean Contact Lens Study Society

    • Member of American Academy of Ophthalmology

    • ICL/Intra Laser/DaVinci Doctor

    • ReLEx SMILE Surgery recognized qualifications

  • BGN Eye Clinic Gangnam Branch

    10 doctors, 60 medical staff

    Chairman Cheon Hyeon Cheol

    • Chief Doctor at BGN in Gangnam/Eye specialist

    • Korean Ophthalmological Association MD

    • Member of the Korean Ophthalmological Society

    • Member of Korean Contact Lens Study Society

    • Member of Korean Society of Cataract and Refractive Surgery (KSCRS)

    • Member of American Academy of Ophthalmology

    • Daejeon Military Hospital Ophthalmologist

    • ICL/SMILE Doctor

    • A formal Chief Doctor at BGN Clinic in Busan

  • BGN Eye Hospital

    14 doctors, 100 medical staff

    Chairman Jeong Ji Won

    • Korean Ophthalmological Association Eye Specialist, Ph. D.

    • Member of American Academy of Ophthalmology

    • Member of American Society of Cataract and Refractive Surgery

    • ICL/SMILE Doctor

    • Member of the Korean Ophthalmological Society

    • Member of Korean Society of Cataract and Refractive Surgery (KSCRS)

    • Member of the Korean Contact Lens Study Society

    • A director of BGN Eye Hospital in Busan


  • Seoul
  • Seoul
  • Busan

Our Equipment

All of our facilities are equipped with the most modern and cutting-edge technology to ensure safety and the best outcome of operations.

Eye Examination Equipment

Pentacam - Corneal tomography

Pachymetry - Corneal thickness

Slit lamp

OPTOS - Retinal Exam


Optical Coherence Tomography

Surgical Equipment

ZEISS VisuMax®

4th generation of low-energy laser.
The only laser in the world
that can perform ReLEx SMILE.

  1. Provides a three-dimensional picture of the eye in real time
  2. Uses data from comprehensive eye examination for a customized ReLEx SMILE Surgery

BGN Eye Group is equipped with 4 VisuMax, which is the largest number in Korea


The newest
excimer laser system

which shows the most accurate results with the help of the 3-dimensional high-speed control eye tracker.


Extremely high precision

The SCHWIND AMARIS 750 combines highest speed with extremely high precision.

Cataract Surgery

  1. Precise and stable surgical performance
  2. Customized surgery
  3. Fast healing time and vision recovery

Cataract Surgery

3D Catalys Laser System

New concept of laser surgery with real-time
diagnosis with 3D OCT

Cataract Surgery


Highest quality performance and reliability
among cataract surgical equipment

Cataract Surgery


The world’s leading ophthalmological
microscope from Carl Zeiss

Cataract Surgery


Integrated equipment for both retinoscopy and
cataract surgery


  • All

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Refractive Surgery



Intrastromal lenticule extraction (Flapless)

Advantage Minimum corneal damage and fast recovery
Disadvantage Price
Recovery 3-5 Hours

SMILE LASIK is the most advanced procedure existing in modern laser surgery. The first minimally invasive vision correction procedure offers high safety and comfort to patients. The desired vision is achieved by creating a lenticule inside the cornea, which is later removed through a small (1.5~2mm) incision. The cutting-edge technology used for performing SMILE surgery is provided by the lead manufacturer Zeiss. The laser is characterized by supreme precision and speed.

  1. Speedy recovery

  2. Patients may pursue normal daily routine from the next day

  3. The least invasive, hence the safest method

  4. No pain or other severe discomfort followed after the surgery

  5. Decreases after surgery xerophthalmia (eye dryness)


Stromal Ablation (Flap)

Advantage Relatively fast recovery
Disadvantage Weak to external impact
Recovery 2 Days

Custom LASIK adds a lot more personalization to the standard LASIK surgery. All measurements taken during the eye examination are used to create a precise map of the refractive errors (including the higher-order aberrations (HOAs) that cannot be fixed with regular contact lenses or glasses). Based on the patient's personal data laser is programmed in a way so it could deliver an absolutely personalized vision correction.

  1. The highest level of preciseness

  2. Fully customized procedure

  3. Around 25 times more accuracy compared to traditional LASIK


Subepithelial ablation (Layer Removal)

Advantage Resistant to external impact
Disadvantage Slow recovery and pain for a few days
Recovery 5~7 Days

The cutting-edge laser technology has allowed doctors to perform LASEK surgery without harsh methods such as using medication or blades. Laser Fit LASEK is a sole laser or blushing (doctor controlled) performed surgery, characterized by high preciseness and causing less tissue loss of the cornea.

  1. High preciseness

  2. Preventing corneal opacity and fuzzy night vision

  3. The laser is applied to the eye without a mild ethanol solution in order to reduce injury

SMILE Comparison

  • BGN Smile

    2mm Cut
    Low Energy
    Cross-Linking (CXL)
    Treatment for
    Dry Eyes
  • Triple Smile

    1.8mm Cut
    Low Energy
    Cross-Linking (CXL)
    Treatment for
    Dry Eyes
  • Quattro Smile

    1.7mm Cut
    Low Energy
    Cross-Linking (CXL)
    Treatment for
    Dry Eyes
    1. Incision - 2mm

    1. CXL – Enhancement of Corneal Epithelial Cells

    1. Energy

  1. Treatment for Dry Eyes

    1. Punctal plugs are tiny, biocompatible devices that can be inserted into tear ducts to block drainage.

    2. Healon (Sodium Hyaluronate) moistens, soothes and lubricates the surface of your eyes, making it feel more comfortable.

  • Punctal Plug

    Healon Eye Drop


ICL implantation is an alternative vision correction method for patients with thin cornea and high myopia/astigmatism, as unlike LASEK/LASIK the procedure does not require tissue to be removed from cornea.

  1. Safe & Effective

  2. Reversible process

  3. Fast recovery

  4. Excellent visual acuity

  • Aqua ICL+

  • ICL

  • Toric Artiflex

  • Artiflex

  • Toric Aqua ICL

Artiflex lens is positioned in the anterior chamber in front of the iris. It is made of a foldable silicone material and can be inserted through a small incision. To make the natural aqueous flow possible it requires a small incision to the iris.

Aqua ICL is a new implantable contact lens that offers a sharper, clearer, and more vivid vision correction without an incision to the iris. It is placed behind the iris and in front of the natural lens. The placement of the lens makes it invisible to the patient and any observer.
There is a hole in the center of the lens which assists the flow of aqueous fluid. The improved aqueous flow greatly reduces the possibility of cataract caused by the contact between ICL and the natural lens of the eye.

Cataract IOL


A clouding of a natural lens in the eye is called a cataract. Usually, cataract starts in patients after age 50, but it can be noticed in younger patients as well, mostly caused by trauma.
During cataract surgery the natural lens is removed and artificial intraocular lens is inserted instead of it.

  • Normal Lens

  • Cloudy Lens


An age-related process caused by the loss of elasticity of the human lens. The lens becomes stiffer as the structural crystallin proteins become misfolded. This increased lens stiffness limits the eye’s ability to adjust its focus for reading or other tasks that require clear vision at near distances.

  • Normal View

  • Presbyopic view

IOL Lens Types

  • Multifocal Lenses

    Multifocal lenses are very similar to glasses with bifocal or progressive lens. Multifocal IOL is not fixed at one certain distance, instead it helps patients to see objects at all three distances.

    Approx. 40 cm (reading)
    Approx. 80 cm (computer work)
    Beyond 100 cm (spatial orientation)

  • Monofocal Lenses

    With this type of lens, your vision will be in focus at just one distance – either near, far, or intermediate distance. Patients may still require to wear reading glasses after surgery.

    Only one distance

Additional Procedures

Avellino DNA Testing

Corneal Dystrophy is an inherited eye condition that may not be detected until “triggered” by laser vision correction.
Symptoms may include white spots on the cornea, which affect vision.The corneal dystrophy gene mutations can be detected by the Avellino DNA testing.

DNA Test identifies autosomal dominant hereditary disorders involving the TGFBI gene, on chromosome 5.

BGN owns lab for DNA testing!

  • Normal

  • Abnormal

  1. BGN provides DNA testing as a part of pre-surgery examination to ensure our patients' safety.

  2. Avellino DNA testing is included in the cost of surgery!

Corneal Cross-Linking (CXL)

The main purpose of the corneal cross-linking (CXL) is to strengthen the cornea that has been negatively impacted by various eye diseases or other complications.
Eventually, after the treatment, patient’s cornea is a lot stronger and healthier than it was before the procedure. The procedure employs eye drops and UV light. Riboflavin drops (Vitamin B2) are applied to the stormal bed of the cornea, then UV light is used to activate the riboflavin.

  • Before

  • After

Treatment for Dry Eyes with IPL

Oasis Laser Treatment with Lumenis IPL M22

Intensive Pulsed Light (IPL) therapy is a new way of treating dry eye syndrome. The method has proved to be very effective even in patients with severe eye dryness. IPL therapy is a quick procedure after which patients may notice immediate improvements.

A light pulse is used to treat the skin around the eyes, which decreases inflammation, helps to unclog Meibomian gland for a better tear production.


  • Q

    What is the follow-up schedule after the vision correction surgery?

  • A

    SMILE LASIK or LASIK: 1 day after or 1 week after (mandatory), 1 month after (if needed).

    LASEK: (post-surgery care is extremely important to prevent corneal opacity): 5 days after (to take off protective lenses), 1 week after, 1 month after, every 1-2 months for 4-6 months (the patient has to use steroid eye drops up to 5-6 months after surgery).

    ICL: 1 day after, 3 days after, 1 week after, 1 month after, 3 months after, then regular check-ups every 6 months ~ 1 year.


  • Q

    Can I get laser vision correction if I am pregnant or breastfeeding?

  • A

    Pregnant and breastfeeding women are not advised to undergo laser vision correction, as hormonal changes can cause visual fluctuations. In addition, antibiotics and steroidal eye drops are prescribed after the surgery which may possibly have an effect on lactation.

    If you are planning a pregnancy, please make sure you allow around 6 months for your cornea and vision to stabilize after the surgery.

    If you are a breastfeeding mom, please first stop nursing and give your body a month to go back to its stable condition. 

  • Q

    Am I a candidate for vision correction?

  • A

    - Age, general health, lens prescription, and the health of your eyes are just a few factors to consider. If you have an eye disease, unstable vision, an uncontrolled systemic disease, or are pregnant and/or nursing, you might not be a candidate for refractive surgery.

  • Q

    Will I be able to see right after the procedure?

  • A

    - Most patients notice an immediate improvement of their vision following the procedure. Naturally, you will experience some intermittent blurriness immediately after the procedure, but this usually clears up within a few hours. 

  • Q

    Does it hurt?

  • A

    - Most patients experience little to no discomfort during surgery because anesthetic (numbing) drops are administered prior to the procedure. As a result, patients feel only slight pressure while the laser reshapes the cornea.

  • Q

    What if I blink or move my eye during the procedure?

  • A

    - We will use a small speculum to hold your eyelids open during the procedure; so blinking is not a concern. You will focus on a blinking light during the procedure. Uncontrollable movements of the eye are expected, and the advanced lasers used for refractive surgery include an eye tracker, which follows these movements to ensure the accurate delivery of laser pulses.

  • Q

    Are there any side effects?

  • A

    - Patients may experience dry eyes following the procedure, which are remedied through the use of artificial tears. Other common side effects are glares and halos and they typically disappear in 6 months after the procedure but may last up to 1 year. Patients usually experience this discomfort whenever they are exposed to bright lights like street lights or headlights.

Precautions · Post-Surgery Instructions

Precautions before examination · surgery

  • Refrain from wearing contact lenses before eye examination and surgery.

    Soft lenses : 5~7 days

    Toric lenses : ~10 days

    Hard lenses : ~14 days

    Ortho-K : ~1 month

  • Please bring your glasses with you.

  • Pupil dilation is performed to examine the health of the optic nerve and retina. It can cause trouble focusing on close objects for 3-4 hours. It is not recommended to drive on the same day.

    (Patients are advised to take public transport)

Post-Surgery Instructions

  • Alcohol·Cigarettes

    Avoid drinking and smoking for 1 week.

  • Driving

    For the first 2 weeks after surgery be careful while driving at night.

  • Eye Protection

    Use sleeping goggles for 2 weeks (LASEK & LASIK). Sunglasses to be used for protection from UV light for 6 months.
    Use of UV protection and sleeping goggles is not required for SMILE surgery.

  • Makeup

    No eye makeup for 3 weeks (SMILE – 1 week).
    Face makeup after 1 week (SMILE – the next day).

  • Washing

    No water in eyes
    LASEK for 5 days
    LASIK for 3 days
    SMILE-on the day of surgery.

  • Workout·Hair Dying·Swimming

    Avoid heavy workout, dying hair, sauna, spa and public pools for 1 month.
    (1 week after SMILE surgery)


  • Bright Eye Clinic Gangnam Introduction

    Bright Eye Clinic Gangnam Introduction

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Contact Us

  • Seoul Jamsil
    Lotte Tower
  • Seoul Gangnam
    Kyobo Tower
  • Busan

Seoul Jamsil Lotte Tower

11F Lotte World Tower, 300 Olympic-ro,
Songpa-gu, Seoul, Korea Zip: 05551

Mobile+82 10 3435 5770


Seoul Gangnam Kyobo Tower

15F Kyobo Tower Bldg, 1303-22 Seocho-dong,
Seocho-gu, Seoul, Korea Zip: 06611

Busan Seomyeon

Busanjin-gu, Busan Zip : 47195

Tel1670-3993Mobile+82 10 7670 3995