SMILE LASIK For High Myopia: A Practical Guide For International Patients At GS Eye Clinic




Direct answer summary
SMILE LASIK is a modern laser vision correction procedure that can be an attractive option for people with high myopia who want to reduce or stop relying on glasses or contact lenses. For suitable candidates, it can offer stable vision, a quick recovery, and a gentler impact on the cornea compared with traditional LASIK. At GS Eye Clinic, high myopia patients are guided through detailed examinations, personalized planning, and structured aftercare to support safe and predictable outcomes.
Understanding high myopia
Myopia, or nearsightedness, means you can see nearby objects more clearly than distant ones. High myopia is a more severe level of nearsightedness, usually defined as a prescription of about -6.00 diopters or stronger. Many patients who consider SMILE LASIK have prescriptions in the range of -6.00 to -10.00 diopters, and sometimes even higher, depending on corneal thickness and eye health.
In high myopia, the eyeball is usually longer than average or the cornea is more curved. This causes light to focus in front of the retina instead of directly on it, making distant objects look blurry. People with high myopia often experience:
- Very thick glasses or strong contact lenses
- Distortion or smaller image size with glasses
- Difficulty with sports, swimming, or outdoor activities
- Fogging or discomfort with masks or temperature changes

Because of these daily inconveniences, many high myopia patients look for long term vision correction options such as SMILE LASIK.
Why high myopia patients seek surgical vision correction
For people with strong prescriptions, glasses can feel heavy and limiting. Contact lenses can be inconvenient, cause dryness, or carry a risk of infection if not used carefully. High myopia is also associated with a higher risk of certain eye conditions, such as retinal problems, so regular eye checkups are important whether or not you choose surgery.
Surgical vision correction does not cure high myopia as a condition of eye shape, but it can significantly reduce the need for glasses or contact lenses by reshaping the cornea so that light focuses properly on the retina. For many international patients, this means:
- Greater freedom in daily life and travel
- More comfortable sports and outdoor activities
- Less dependence on contact lenses
What is SMILE LASIK
SMILE stands for Small Incision Lenticule Extraction. It is a type of laser vision correction that uses a femtosecond laser to reshape the cornea through a very small opening.
In traditional LASIK, the surgeon creates a thin flap on the surface of the cornea, lifts it, reshapes the underlying tissue with an excimer laser, and then replaces the flap. SMILE LASIK does not require a large flap. Instead, it uses one laser to create a small, lens shaped piece of tissue called a lenticule inside the cornea, and then removes that lenticule through a tiny incision.
How SMILE LASIK works in simple terms
A femtosecond laser creates a precise, thin lenticule inside the cornea based on your prescription.
The same laser creates a very small side opening, usually only a few millimeters wide.
The surgeon gently removes the lenticule through this opening.
Once the lenticule is removed, the shape of the cornea changes so that light focuses more accurately on the retina.

Because there is no large flap, more of the corneal surface and nerves are preserved compared with traditional LASIK.
Why SMILE LASIK can be attractive for high myopia
High myopia requires more reshaping of the cornea than mild myopia. SMILE LASIK has several potential advantages that can be especially meaningful for patients with stronger prescriptions, when their eye anatomy is suitable.
Preservation of corneal tissue
SMILE LASIK can preserve more of the anterior corneal structure and may result in better biomechanical stability compared with a flap based procedure. This can be particularly important for high myopia, where more tissue needs to be removed to correct the refractive error.
Reduced dry eye risk
Because SMILE LASIK uses a small incision and does not involve creating a wide flap, it may disturb fewer corneal nerves. This can reduce the risk or severity of dry eye symptoms after surgery for some patients, which is a common concern, especially for contact lens users who already experience dryness.
Suitability for higher prescriptions
For patients with sufficient corneal thickness and healthy eye structure, SMILE LASIK can be suitable for higher myopia levels. The exact limit depends on individual measurements, including corneal thickness, curvature, and overall eye health. At GS Eye Clinic, these factors are carefully evaluated before recommending SMILE LASIK.
Comfort and quick recovery
Many patients report that the SMILE procedure itself is very quick and that discomfort is usually mild and short lived. Visual recovery is often rapid, with many people returning to routine activities within a few days, although full stabilization of vision can take several weeks.
Who may consider SMILE LASIK for high myopia
Not every high myopia patient is a candidate for SMILE LASIK. A detailed preoperative assessment is essential. In general, candidates often meet the following criteria:

Age: usually at least 18 years old, often early 20s or older
Stable prescription: no major change in refraction for at least one to two years
Corneal thickness: sufficient thickness to allow safe reshaping
Corneal shape: regular shape without signs of diseases such as keratoconus
Overall eye health: clear cornea, healthy tear film, no active eye infections or severe dry eye
Your lifestyle and expectations are also important. If you want to reduce dependence on glasses or contact lenses, understand the possible risks and limitations, and are prepared to follow postoperative instructions, you may be a good candidate.
When SMILE LASIK may not be recommended
Even if you have high myopia, SMILE LASIK is not always the best choice. It may not be recommended in situations such as:
- Very thin corneas where safe tissue removal is not possible
- Irregular corneas or keratoconus, which can weaken the cornea
- Significant corneal scarring or previous corneal disease
- Uncontrolled severe dry eye
- Certain retinal conditions, which can be more common in high myopia
- Autoimmune or systemic diseases that affect healing
In these cases, the ophthalmologist may suggest alternative options, such as other types of laser vision correction, implantable lenses, or continuing with glasses or contact lenses. At GS Eye Clinic, the priority is safety and long term eye health, so the team will not recommend SMILE LASIK if your examination shows that it is not appropriate.
GS Eye Clinic for high myopia vision correction
GS Eye Clinic is an ophthalmology clinic that focuses on vision correction procedures, including SMILE LASIK for patients with high myopia. International patients can expect detailed diagnostic testing, careful screening for high myopia related issues, and a personalized treatment plan based on individual eye measurements.
The clinic emphasizes:
- Comprehensive preoperative eye examinations
- Customized surgical planning for each eye
- Clear explanations in understandable language
- Structured postoperative care and follow up

Treatment overview: what to expect with SMILE LASIK
SMILE LASIK is usually a day surgery procedure. You arrive at the clinic, undergo final checks, have the treatment, rest for a short time, and then return to your accommodation the same day.
Key points of the procedure include:
Numbing eye drops are used, so you should not feel pain, though you may feel gentle pressure.
The laser step typically takes only a few minutes per eye.
You will be asked to look at a target light while the laser works.
The surgeon removes the lenticule through the small incision.
After the procedure, your vision may be hazy for a few hours.
Most patients can open their eyes comfortably soon after surgery, though some light sensitivity, tearing, or mild discomfort is common on the first day.
Typical patient journey at GS Eye Clinic
Initial online consultation
For overseas patients, the journey often begins before arriving in Korea. You can usually contact GS Eye Clinic online, share your glasses or contact lens prescription, and provide information about any previous eye problems or surgeries.
During this stage, the clinic can:
- Explain whether SMILE LASIK might be suitable in general terms
- Recommend how long you should plan to stay in Korea
- Answer initial questions about costs, schedules, and language support
This early communication helps you decide if a visit to Korea for SMILE LASIK is realistic for you.
Pre visit preparation
Before your trip, you may be advised to:
- Stop wearing soft contact lenses for several days before your examination
- Stop wearing rigid gas permeable lenses earlier, often a few weeks before
- Prepare your medical history, including any systemic conditions and medications
- Arrange travel dates that allow enough time for surgery and follow up

Bringing previous eye examination records can also be helpful, especially if you have high myopia with any known retinal issues.
Day 1 in Korea: comprehensive eye examination
On your first clinic visit, you will undergo a series of detailed tests, which may include:
- Measurement of your exact prescription
- Corneal topography and tomography to map shape and thickness
- Pupil size measurement
- Tear film and dry eye evaluation
- Retinal examination, often with dilation, to check for high myopia related changes
These tests are essential to determine whether SMILE LASIK is safe and appropriate for you.
Treatment planning and discussion
After the tests, the ophthalmologist will:
- Explain the condition of your eyes in simple language
- Discuss whether SMILE LASIK is recommended for your level of myopia
- Compare SMILE LASIK with other possible options if needed
- Describe expected visual outcomes and any limitations
- Review potential risks and side effects
You will have the opportunity to ask questions and decide whether to proceed. If you agree, surgery is often scheduled within a short time frame during your stay.

Day of SMILE LASIK surgery
On the surgery day, you should:
Avoid eye makeup, perfume, and heavy lotions
Have a light meal before coming, unless instructed otherwise
Arrange for someone to accompany you if possible, or plan for a safe way back to your accommodation
At the clinic, staff will:
- Reconfirm your identity and treatment plan
- Apply numbing eye drops
- Clean the area around your eyes
- Guide you step by step through the procedure
The procedure itself is usually very quick. Many patients are surprised at how fast it feels. After surgery, you will rest in the clinic for a short time while staff check your eyes.
First 24 hours after surgery
In the first hours, you may experience:
- Blurry or hazy vision
- Watery eyes and mild burning or foreign body sensation
- Light sensitivity
You will be given eye drops for infection prevention and inflammation control, and often lubricating drops for comfort. It is important not to rub your eyes and to rest as much as possible. Many patients sleep or keep their eyes closed for several hours after returning to their accommodation.
Follow up visits and recovery timeline
Most patients have a follow up visit the next day. The ophthalmologist checks the healing of the small incision, the clarity of the cornea, and your early vision.
Typical recovery milestones can include:
Next day: Many patients can see well enough for basic activities, though vision may still fluctuate.
First week: Vision usually becomes clearer and more stable; you can often resume office work and gentle daily activities.
First month: Most restrictions on exercise and cosmetics around the eyes are gradually lifted, depending on the clinic’s guidance.
Three to six months: Vision typically stabilizes fully, and any minor fluctuations or halos often improve.

Your exact schedule may differ, and GS Eye Clinic will provide specific instructions based on your case.
Expected visual outcomes
For suitable high myopia candidates, SMILE LASIK can significantly reduce dependence on glasses or contact lenses. Many patients achieve vision close to their previous corrected vision with glasses.
However, results can vary depending on factors such as:
- Initial prescription strength
- Corneal thickness and shape
- Healing response and dry eye status
A small number of patients may still need thin glasses for certain tasks, such as night driving or very fine work. Enhancements or additional treatments may be discussed if necessary, once healing is complete.
Safety, pain, and long term stability
Safety
SMILE LASIK is a well established procedure with a strong safety profile when performed on properly selected patients. A key part of safety is the comprehensive preoperative screening to rule out conditions like keratoconus or unstable corneas.
Pain during the procedure
Numbing drops are used, so most patients feel only mild pressure or a brief sensation of contact. The laser step is very short. Some people feel mild discomfort or tearing afterward, but this usually improves quickly.
Recovery time
Many patients return to light daily activities within one to two days and to office work within a few days. You should avoid swimming, heavy exercise, and eye makeup for a period recommended by the clinic.

Long term stability
For most patients with stable preoperative prescriptions, SMILE LASIK provides long lasting results. However, the eye can still change slowly with age, and high myopia patients should continue regular eye checkups to monitor for retinal or other issues.
Aftercare and lifestyle tips
After SMILE LASIK, GS Eye Clinic will guide you on:
- Using prescribed eye drops as directed
- Avoiding eye rubbing and protecting your eyes from dust and water
- Wearing sunglasses outdoors to reduce light sensitivity
- Limiting screen time in the first days if your eyes feel tired
- Scheduling follow up visits before returning to your home country
Even after you go home, it is wise to have periodic eye examinations locally, especially if you have high myopia.
FAQ about SMILE LASIK for high myopia
Is SMILE LASIK safe for very high myopia
It can be safe and effective for many patients with high myopia, but not for everyone. The key is whether your cornea is thick and regular enough and whether your retina and overall eye health are suitable. Detailed testing at GS Eye Clinic will determine this.
Will I feel pain during SMILE LASIK
You should not feel sharp pain because numbing drops are used. You may feel pressure or slight discomfort. After surgery, mild burning or foreign body sensation is common but usually temporary.
How long do I need to stay in Korea
Many international patients plan to stay about one to two weeks. This allows time for the initial examination, surgery, and at least one or two follow up visits. The exact schedule can be adjusted based on your travel plans and the clinic’s advice.
Can SMILE LASIK fix my astigmatism too
Yes, SMILE LASIK can correct many cases of myopic astigmatism within certain ranges. During your examination, the ophthalmologist will check whether your combination of myopia and astigmatism is within the treatable range.

What if my cornea is too thin for SMILE LASIK
If your cornea is too thin for safe SMILE LASIK, the clinic may discuss other options, such as alternative vision correction methods or continuing with glasses or contact lenses. Safety always comes first.
Will I still need glasses after SMILE LASIK
Many patients do not need glasses for most daily activities after SMILE LASIK. However, some may still use thin glasses for specific tasks. Later in life, age related changes such as presbyopia can still occur, meaning reading glasses may be needed regardless of previous surgery.
Soft call to action
If you have high myopia and are exploring SMILE LASIK in Korea, an online consultation with GS Eye Clinic can help you understand whether this procedure might be suitable for your eyes. By sharing your current prescription and medical history, you can receive preliminary guidance before planning your trip. When you are ready, the team at GS Eye Clinic can support you through each step of the process, from detailed examination and personalized planning to surgery and follow up, so you can make an informed and confident decision about your vision correction.



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