Are you looking for a safe, minimally invasive, and fast-recovering vision correction method? ReLEx SMILE is an advanced technology that allows you to achieve perfect vision without the need for a corneal flap, unlike traditional LASIK. With the ability to treat myopia up to 10 dioptres and astigmatism up to 5 dioptres, ReLEx SMILE is becoming the top choice for those seeking vision improvement while ensuring maximum corneal safety.

So, what makes ReLEx SMILE different? Is this the right procedure for you? Let Hoan My Gold Ky Dong guide you through the details in this article.

Who should choose SMILE laser vision correction surgery? Source: Internet

1. What is ReLEx SMILE?

ReLEx SMILE (Small Incision Lenticule Extraction) is an advanced laser eye surgery that uses Femtosecond laser technology to correct refractive errors without creating a corneal flap, as in LASIK or Femto LASIK. Instead of cutting a large corneal layer, ReLEx SMILE only creates a small incision (2 mm) to extract a lenticule, reshaping the cornea and improving vision.

Mechanism of action

This method utilises a highly precise Femtosecond laser to cut an ultra-thin layer of tissue inside the cornea without affecting the outer surface. This tissue is then removed through a small incision without needing to create a corneal flap, maintaining the integrity of the cornea better than traditional methods.

The development of ReLEx SMILE technology

ReLEx SMILE is the result of years of research and refinement in refractive surgery. Developed by Carl Zeiss Meditec in Germany, this cutting-edge technology has been widely adopted worldwide, especially in leading ophthalmology centres.

ReLEx SMILE is considered the third generation of refractive surgery, following PRK and LASIK. This innovation helps preserve the anatomical structure and biomechanical strength of the cornea while minimising post-surgery dry eye symptoms.

Thanks to this advanced technology, ReLEx SMILE maximises corneal preservation, reduces the risk of dry eyes, and limits post-surgical complications.

2. Advantages of ReLEx SMILE

• World’s most advanced technology: Successfully restored vision for over 7 million patients worldwide.
• Treats up to 10 diopters of myopia and 5 diopters of astigmatism: Approved by the U.S. FDA for safety and effectiveness.
• Performed on the state-of-the-art VISUMAX system: One of the most advanced refractive surgery machines from Germany.
• Exceptional safety: No corneal flap creation, completely avoiding flap displacement or misalignment risks.
• Maximum corneal preservation: Helps maintain corneal structure and minimises dry eye symptoms.
• Very low risk of regression: Depends on individual eye structure and post-surgery eye care habits.
• Quick procedure: Only 23 seconds of laser treatment, and patients can be discharged the same day.
• Fast visual recovery: Patients regain normal vision within 24 hours and can return to work immediately.
• Simple post-operative care: No need for protective eyewear, mobile phone use allowed after one day, and swimming permitted after one month.

With these outstanding benefits, ReLEx SMILE is particularly suitable for individuals requiring high-quality vision while ensuring optimal eye health.

SMILE laser vision correction recovers in just 24 hours. Source: Internet

3. Comparison of ReLEx SMILE vs. LASIK vs. Femto LASIK

ReLEx SMILE is the most advanced among current refractive surgery technologies. Below is a comparison of ReLEx SMILE, LASIK, and Femto LASIK to provide a clearer understanding.

Detailed comparison of ReLEx SMILE and Femto LASIK

• Safety: ReLEx SMILE does not require a corneal flap, reducing the risk of flap-related complications such as dislodgement or wrinkles.
• Surgical duration: ReLEx SMILE is a quick procedure, averaging only 5 – 10 minutes for both eyes.
• Recovery speed: Patients undergoing ReLEx SMILE can resume normal activities within 1-2 days, whereas LASIK requires a longer recovery period.

With these advantages, ReLEx SMILE is becoming the preferred choice for those seeking safe and effective myopia correction.

4. Who should choose ReLEx SMILE?

Suitable for:

• Individuals with myopia up to 10 dioptres and astigmatism up to 5 dioptres.
• Those afraid of pain and seeking a quick recovery.
• People engaged in high-intensity physical activities (sports, martial arts, swimming).
• Individuals with mild to moderate dry eyes.

Not suitable for:

• Severe myopia (>10 dioptres) or excessively thin corneas.
• Individuals under 18 years old (unstable vision).
• Patients with corneal diseases (keratoconus, corneal infections).

5. ReLEx SMILE surgical procedure

• Eye examination, myopia measurement, and corneal health assessment

The patient undergoes a comprehensive eye examination, including measuring myopia, assessing corneal thickness, and checking other factors to ensure eligibility for the procedure.

• Anaesthesia with numbing eye drops

No injections are required; only numbing eye drops are used to ensure a painless and comfortable surgical experience.

• Femtosecond laser creates a lenticule inside the cornea

The surgeon uses a femtosecond laser to create a thin layer of tissue (lenticule) inside the cornea without affecting the outer surface.

• Lenticule removal through a small incision (2 mm)

The lenticule is carefully extracted through a tiny incision, reshaping the cornea and improving vision.

• Post-surgery vision checks and rest

After the procedure, the patient’s vision is re-evaluated, followed by a short rest at the clinic before being discharged.

• Post-operative care instructions

The ophthalmologist provides detailed guidance on using prescribed eye drops, necessary precautions, and follow-up appointments to monitor recovery.

The surgery takes less than five minutes per eye, making it a quick and gentle procedure. Patients can return home the same day and experience rapid visual recovery.

6. Pre- and post-surgery care instructions

Important notes to know before undergoing laser vision correction surgery. Source: Internet

6.1. Before surgery

• Stop wearing soft contact lenses one week (or hard lenses two weeks) before surgery.
• Avoid using cosmetics or eye care products on the day of surgery.
• Undergo necessary tests and eye examinations as instructed by the ophthalmologist.

6.2. After surgery

• Use prescribed eye drops as directed.
• Avoid rubbing eyes or exposure to dirty water in the first week.
• Minimise exposure to bright light and prolonged screen time for 1-2 weeks.
• Refrain from applying eye creams or makeup for 2 weeks post-surgery.
• Attend follow-up appointments for recovery monitoring.
• Avoid contact sports or strenuous activities for 4 weeks post-surgery.

ReLEx SMILE is a modern, safe, and minimally invasive vision correction procedure, ideal for those who seek optimal eyesight while preserving corneal integrity. If you are looking for a painless, flap-free laser eye surgery with long-term effectiveness, this is the perfect solution.

Hoan My Gold Ky Dong Medical Centre takes pride in being the only facility within the Hoan My Medical Corporation to offer comprehensive eye care services. With a team of highly skilled ophthalmologists, state-of-the-art equipment, and dedicated patient care, we are committed to providing safe, effective, and personalised refractive surgery solutions.

For detailed consultations and comprehensive eye examinations, contact us today via Hotline 0919 209 039 or register online here.

We are always here to support you on your journey to clearer and healthier vision.

References:

• ZEISS. Refractive lasers. Clinical solutions for wide-ranging vision correction applications.
• Smile of Shroff Eye. Differences between ReLEx SMILE and LASIK.
• PubMed. Comparison of the efficiency of Femto LASIK and ReLEx SMILE in terms of dioptric error reduction.
• Suc khoe & Doi song Newspaper. Recovery potential after ReLEx SMILE surgery.

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HOAN MY GOLD KY DONG MEDICAL CENTRE
Hotline: 0919 209 039
Address: 27 Ky Dong, Ward 9, District 3, HCMC
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