What is Femto LASIK? Get to Know Blade-Free Vision Correction
บทความโดย: seoteam seoteam วันที่อัพเดท: 14 May 2569
Femto LASIK is a revolutionary, blade-less vision correction technology that offers a safe and highly precise path to crystal-clear sight. By utilizing advanced femtosecond lasers, this procedure reshapes your vision with minimal downtime, allowing you to rediscover the world through a sharper, more vibrant lens. Get to know more about the procedure in this article.
Highlight
- Femto LASIK uses the advanced Visumax Femtosecond Laser to create a smooth corneal flap, significantly increasing safety and reducing the risk of surgical complications.
- Most patients experience significantly improved vision within 24 hours, allowing for a quick return to work and daily activities with minimal discomfort.
- The low-energy laser technology protects surrounding eye tissues and reduces the likelihood of long-term side effects like severe dry eye or infections.
- Every procedure is customized to the unique curvature of the patient’s eye, ensuring the most accurate and stable visual results possible for the long term.
Table of Contents
Femto LASIK is a modern innovation in vision correction designed to treat nearsightedness, farsightedness caused from birth, and astigmatism. This procedure is completely "blade-less," using the high-precision Visumax Femtosecond Laser. The technology works by accurately scanning the curvature of the cornea at an impressive speed of 500 kHz.
The laser used in Femto LASIK operates with high frequency but low energy, ensuring a high level of safety. It allows surgeons to define the exact thickness of the corneal flap and separate the corneal layers smoothly without damaging the surrounding tissues. As a result, the corneal wound heals quickly, the surgical time is minimized, and the recovery period is short, significantly reducing the risk of potential complications.
Femto LASIK is a highly versatile procedure that offers numerous benefits for those looking to correct their vision including:
- Femto LASIK effectively treats nearsightedness (myopia), farsightedness (hyperopia), and astigmatism.
- Patients with relatively small eye structures can safely undergo surgery using this specific method.
- The procedure results in very few side effects and requires a significantly short recovery time.
- The LASIK surgical process is quick, and patients typically feel comfortable and pain-free throughout the procedure.
- This LASIK eye surgery reduces the risk of errors during corneal flap separation and minimizes the chance of corneal surface epithelial damage.
- The process is safe, accurate, and convenient because there is no need to move the patient between different machines during surgery.
- Surgeons can precisely determine the specific depth and thickness of the corneal layers for every individual patient.
While all Femto LASIK & ReLEx SMILE (ReLEx SMILE Pro) & Conventional LASIK aim to reshape the cornea, they differ significantly in technique and specific advantages.
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Feature
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Conventional LASIK
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Femto LASIK
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ReLEx SMILE
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Technology
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Mechanical Blade (Microkeratome)
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Femtosecond Laser (Blade-less)
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Femtosecond Laser (Blade-less)
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Flap Creation
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Uses a blade to cut a corneal flap.
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Uses a laser to create a precise flap.
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No flap created (Small 2-4 mm incision).
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Procedure
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Blade cuts flap. Excimer laser reshapes cornea.
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The laser creates a flap. Excimer laser reshapes cornea.
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The laser creates a tiny "lenticule" inside, which is then pulled out.
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- Discover how PRK, the flap-less laser treatment restores your vision safely and effectively for patients that are unable to do LASIK : PRK
Ideal candidates for the Femto LASIK eye surgery include:
- Individuals aged 20 years or older whose vision prescription has remained stable for at least one year.
- Those with nearsightedness up to approximately -1,200 to -1,300 diopters, or farsightedness and astigmatism within treatable limits.
- Individuals who are not currently pregnant or breastfeeding.
- Those with good overall eye health and sufficiently strong, healthy corneas.
- Individuals who maintain a correct and realistic understanding of the surgical outcomes and the Femto LASIK process.
- Those who find wearing glasses or contact lenses inconvenient due to their profession, physical activities, or other lifestyle requirements.
- Candidates should not have corneal-related conditions such as keratoconus, severe dry eye syndrome, cataracts, or glaucoma.
- Individuals without systemic medical conditions that could interfere with wound healing, such as poorly controlled diabetes, SLE (Lupus), psoriasis, or other autoimmune diseases.
Choosing Femto LASIK offers several advantages over traditional methods, ensuring a safer and more precise experience for patients looking to correct their vision.
- The blade-less technology significantly reduces risks during the corneal flap separation process.
- This method is far more accurate than conventional LASIK by utilizing high-frequency lasers for both flap creation and vision correction
- It effectively treats a wide range of issues, including nearsightedness, congenital farsightedness, age-related farsightedness (presbyopia), and astigmatism.
- Patients experience a lower risk of post-operative dry eye syndrome and infections compared to older techniques.
- The corneal flap adheres and heals quickly, making the chance of flap displacement extremely low.
While Femto LASIK is a highly advanced procedure, there are specific limitations and factors to consider before deciding on surgery. Limitations of Femto LASIK include:
- The LASIK eye surgery procedure cannot be performed on individuals who are currently pregnant or breastfeeding.
- In some cases, patients may experience complications such as corneal haziness or fogging.
- This type of surgery requires a high level of specialized skill and expertise from the performing ophthalmologist.
- Patients must be extremely careful to avoid eye injuries after surgery. Because the incision is a long, curved flap, physical impact could cause the flap to shift or reopen.
- Individuals with existing corneal diseases or systemic health conditions that affect vision are not suitable candidates.
Possible Side Effects After Femto LASIK include:
- The process of separating the corneal layers may result in microscopic scarring on the cornea.
- There is a possibility that the corneal flap could shift or move out of place before fully healing.
- Some patients may experience dry eyes for a period of 6 to 12 months following the procedure.
- It is common to experience temporary sensitivity to light immediately after the surgery is completed.
- The overall structural strength of the corneal surface tissue may be slightly reduced.
- Femto LASIK may cause inflammation in the corneal layers because of the accumulation of tiny air bubbles (Opaque Bubble Layer) during the laser process.
Preparing properly for Femto LASIK is essential for a safe procedure and optimal results. Before undergoing the surgery, you must follow these preparatory steps:
- Research accurate information about Femto LASIK to ensure you have a realistic understanding of the procedure and appropriate expectations for the final outcome.
- Research potential service providers. Consider factors such as the surgeon's expertise, convenience of travel, facility cleanliness, and total costs.
- If you wear contact lenses regularly, you must stop wearing them before your eye analysis. Discontinue soft lenses at least 3 days before the exam. For hard or semi-rigid lenses, discontinue use at least 14 days prior.
- If you are taking acne medications in the Isotretinoin group, you must stop taking them for at least 1 month before both the eye analysis and the actual surgery.
- Refrain from consuming all alcoholic beverages prior to the procedure.
- Inform your ophthalmologist of any regular medications you are taking, such as treatments for diabetes, high blood pressure, or sleep aids.
- On the day of your eye analysis, bring a pair of sunglasses and a caregiver. The exam involves eye drops to dilate your pupils, which will temporarily cause blurred vision and extreme light sensitivity.
- Undergo a detailed eye health screening to determine the overall condition of your eyes and confirm if you are a suitable candidate for the Femto LASIK method.
It is natural to feel anxious about what happens during a Femto LASIK surgery and whether the process is frightening. Understanding each step can help ease your concerns and allow you to prepare yourself mentally. Typically, the Femto LASIK procedure involves the following stages:
- Once you are ready for the LASIK eye surgery procedure, a specialist will apply numbing eye drops. The surgery will begin only after the anesthesia has taken full effect.
- The surgeon uses a femtosecond laser to precisely separate the corneal layers at the exact thickness previously calculated.
- The corneal flap is gently lifted, and an Excimer laser is used to reshape the curvature of the inner corneal tissue to correct your vision.
- Once the adjustment is complete, the corneal flap is placed back into its original position, where it adheres naturally.
- The ophthalmologist will place a protective shield over your eye to complete the procedure.
While the surgery itself is a major step, your self-care during the recovery phase is equally important for achieving the best visual results. To ensure a smooth healing process, follow these guidelines:
- Always wear the provided eye shields while sleeping to prevent accidental rubbing of your eyes.
- Be extremely careful to prevent water, dust, sweat, or any foreign particles from entering your eyes.
- Avoid unnecessary or strenuous activities that could strain your eyes or lead to injury.
- Get plenty of sleep to allow your eyes to recover and stabilize efficiently.
- Use all prescribed eye drops exactly as directed by your surgeon.
- Use preservative-free artificial tears frequently to relieve any dry eye sensations.
- Avoid applying any makeup or creams around the eye area.
- If you have long hair, keep it tied back to prevent strands from touching or irritating your eyes.
- When going outdoors, always wear high-quality sunglasses to protect against UV rays and wind.
- Refrain from driving at night initially, as you may see "halos" or starbursts around lights.
- Attend all scheduled check-ups with your ophthalmologist to monitor your progress.
- If you experience any unusual symptoms beyond common side effects, contact your doctor immediately.
It is common to experience some temporary symptoms during the first few days of recovery, including:
- Excessive tearing or watery eyes.
- Itching or mild aching in the eye area.
- Eye irritation or a burning sensation.
- Sensitivity to bright lights.
- Fluctuating visual clarity as the eyes heal.
Is Femto LASIK painful during the procedure?
The LASIK eye surgery procedure is virtually painless. Numbing eye drops are used to ensure you feel only mild pressure, but no pain.
When can I return to work after Femto LASIK?
After undergoing Femto LASIK, a recovery period of 2 to 3 days is typically required. During this time, you may experience some eye irritation or frequent tearing as your eyes begin to stabilize.
Can Femto LASIK permanently cure myopia or astigmatism?
Femto LASIK permanently corrects your existing vision problems, restoring clarity to your sight. However, it cannot stop the natural aging process or future bodily changes. While it fixes current issues for good, it does not prevent new vision changes that may occur as you get older.
Femto LASIK is a premier, blade-free surgical option that provides permanent vision correction with unmatched precision. By utilizing dual-laser technology, it offers faster healing and fewer complications than traditional methods. While suitable for most adults with stable vision, success depends on a thorough pre-operative screening and diligent aftercare to protect the eyes as they stabilize into perfect clarity.
At Samitivej Chinatown, we prioritize your comfort and safety. Our expert ophthalmologists use world-class technology and international standards to ensure a gentle, precise experience. We focus on personalized service, making your journey to clear vision feel routine and safe rather than daunting or stressful.
