Femtosecond-Laser Frequently Asked Questions
A list of commonly asked questions about the Femtosecond-Laser.
- What is the Femtosecond-Laser?
- How does the Femtosecond-Laser work?
- What is the difference between a corneal flap created with the Femtosecond-Laser and one created with a microkeratome?
- How is the Femtosecond-Laser different from Epi-LASIK or photorefractive keratectomy (PRK)?
- Are there other benefits to using the Femtosecond-Laser?
- Is the Femtosecond-Laser painful?
- Is the Femtosecond-Laser safe?
- How long does it take to create a flap using the Femtosecond-Laser?
- What’s the reaction of patients who have experienced the Femtosecond-Laser?
- Is the Femtosecond-Laser right for me?
- How can I find an Femtosecond-Laser doctor?
What is the Femtosecond-Laser?
The Femtosecond-Laser is a 100% blade-free technique used to perform the critical first step in the LASIK procedure: creating the corneal flap. The creation of the corneal flap prepares the eye for the second step of the LASIK procedure, where an excimer laser is used on the inner cornea to correct vision.
How does the Femtosecond-Laser work?
The Femtosecond-Laser uses tiny, rapid pulses of laser light to create your corneal flap — instead of using a metal blade — during the first step of LASIK. Each pulse of light passes through the top layers of your cornea and forms a microscopic bubble at a specific depth and position within your eye that is determined by the doctor. The Femtosecond-Laser moves back and forth across your eye, creating a uniform layer of bubbles just beneath your corneal surface.
Just prior to applying laser vision correction, the doctor creates your corneal flap by gently separating the tissue where these bubbles have formed. The corneal flap is then folded back so the doctor can perform the second step of your LASIK treatment.
What is the difference between a corneal flap created with the Femtosecond-Laser and one created with a microkeratome?
The microkeratome is a hand-held instrument, which contains a steel blade that moves back and forth and creates a cut as it travels across the cornea. A microkeratome is only capable of making a single, one-dimensional cut across the cornea. As it cuts, the blade oscillates back and forth, which can leave an irregular surface after the flap is lifted. This can affect the quality of your postoperative vision.
Because of the unique way in which the Femtosecond-Laser creates a precisely positioned layer of bubbles just beneath the surface of your eye, it creates a smooth even surface after your flap is lifted. With the Femtosecond-Laser, a blade never touches your eye.
How is the Femtosecond-Laser different from Epi-LASIK or photorefractive keratectomy (PRK)?
These procedures differ from one another in the way they prepare the surface of the cornea for the second step of LASIK. Epi-LASIK uses an epikeratome — a blunt separator — to make a superficial flap. Similarly, PRK is performed by gently scraping the surface layer of the cornea, which may lead to corneal scarring. Both the Epi-LASIK and PRK procedures can be painful and require more postoperative medication. In addition, healing times may be longer than with procedures performed with the Femtosecond-Laser.
Are there other benefits to using the Femtosecond-Laser?
There are several benefits to using the Femtosecond-Laser:
l Better outcomes. More patient get better outcomes when their LASIK procedure is performed with the Femtosecond-Laser.1 Patients report faster recovery, fewer LASIK flap-related complications, and fewer induced higher order aberrations.2 Higher order aberrations may contribute to visual disturbances such as halos and glare.
l Ability to tailor the procedure to your eye. The Femtosecond-Laser gives your doctor the ability to tailor the dimensions of your corneal flap based on what’s best for your eye. Everything from the diameter of your flap to the angle of its edges can be precisely determined. This is important because everyone’s eyes are shaped a little differently. Having a corneal flap that’s individualized to the patient contributes to excellent postoperative outcomes. In addition, a corneal flap created with the Femtosecond-Laser also “locks” back into position after the LASIK procedure is performed.
Is the Femtosecond-Laser painful?
Prior to creating the flap, the doctor applies drops to numb the eye, and then applies a special ring and an instrument that gently flattens your cornea in preparation for the Femtosecond-Laser. This part of the process is not painful — patients report feeling only slight pressure.
Is the Femtosecond-Laser safe?
Millions of procedures have been performed safely and effectively using the Femtosecond-Laser.
How long does it take to create a flap using the Femtosecond-Laser?
The creation of the flap itself takes only about 15 to 20 seconds per eye. Including preparation time, the entire LASIK procedure takes about 10 minutes.
What’s the reaction of patients who have experienced the Femtosecond-Laser?
In a clinical survey of LASIK patients who had their corneal flaps created using a microkeratome in one eye and the Femtosecond-Laser in the other, the vision in the Femtosecond-Laser -treated eye was preferred 3-to-1 (among those who stated a preference).3,4
Is the Femtosecond-Laser right for me?
If you are looking for a 100% blade-free LASIK experience that virtually eliminates almost all the most severe, sight-threatening complications, the answer is yes. But to get this procedure, you have to ask your physician for the Femtosecond-Laser by name.
Please call us at 021-6437-7445 for the details.