Restoring Perfect Clarity of Vision to the Eyes
It is a “miracle light” that has been tested in more than 2.5 million surgical procedures and is respected by eye care professionals and myopia patients worldwide.
It is a world-class technology that has made a quantum leap in the safety of myopia surgery flap making process.
The emergence of this technology, which originated in the United States and is well known throughout the world, marks the entry of modern refractive surgery technology into the era of blade-free keratoplasty, which truly realizes the entire laser treatment of myopia correction surgery.
It is the femtosecond laser technology!
No more knives for myopia treatment
Medical University Ophthalmology leads myopia treatment into the “no knife” era
Many people want to achieve the dream of removing glasses through surgery, but when it comes to surgery will think of the scalpel, which makes us immediately return to reason. Indeed, the eye is one of our most valuable organs, the most important organ that we have in contact with the outside world. “Surgery on the eyes” has eyeglass people torn between “to do or not to do”. So what kind of technology can let us get rid of these concerns and let go of myopia surgery to live a “mirror-free” life?
The latest technology in laser myopia correction technology, known as the “magic light” of femtosecond laser technology, is known for the full laser, completely realize the production of corneal flap without knife. The emergence of the laser myopia surgery officially crossed into the “knife free era”, has become the first choice of many myopic patients who require high visual quality.
It is understood that the femtosecond laser is an infrared laser that operates in the form of pulses with a very short pulse duration of a few femtoseconds (1 femtosecond equals 10-15 seconds, or 1/1000 trillion seconds). It can instantly produce extremely high energy density in a very small space with very low energy, causing tissue ionization to produce plasma, forming microbubbles in the tissue and countless microbubbles which in turn form microcavities, relying on the light cracking effect formed by the microplasma at the focus of the laser beam to cut the tissue and reduce the thermal damage to the surrounding tissue. Moreover, in transparent materials, the femtosecond laser beam can reach the internal focus of the material almost without decay. As a result, the femtosecond laser can accurately cut the corneal stroma without damaging the corneal epithelium and anterior elastic layer, and with virtually no heat transfer and minimal thermal damage to the cut area, which is unmatched by other lasers.
All-laser blade-free corneal flap creation
Laser myopia surgery has entered the safest field
As we all know, 80% of the risk in laser myopia surgery comes from the process of creating the corneal flap. Looking back at the traditional metal keratome, if the blade is rotated in the process of negative pressure ring loosening and other accidents, the production of corneal flap will completely fail, and the surgery can only be done three months later, which will bring great psychological pressure to patients and doctors. Moreover, the traditional metal keratome uses blades, and the quality of the blades and the flatness and sharpness of the blades cannot be completely consistent, making it much less accurate.
Compared to the traditional metal keratome, the femtosecond laser flap-making technology is the safest laser technology for myopia treatment in the world. Its safety is mainly reflected in the fact that the femtosecond laser eliminates the need for a blade during the procedure, which completely eliminates the complications caused by a traditional blade to the cornea, resulting in safer surgery and better post-operative visual quality. The whole process is controlled by the doctor and the computer program, which is 100 times more precise than a metal corneal knife. The corneal flap made by the femtosecond laser is more perfect, it retains the thickness of the corneal stromal layer, which increases the safety and predictability of the surgery; the flap is of uniform thickness, the stromal bed is fine and smooth, and the medical aberration is avoided to the maximum extent; the beveled structure of the flap edge fits exactly, which makes the stability of the flap after resetting very good, not easy to displace after surgery, and effectively avoid epithelial implantation; the 70° The 70° cutting edge of the flap reduces nerve damage to the cornea, resulting in a dramatic 72% reduction in postoperative dry eye.
Femtosecond laser instead of corneal knife is an inevitable trend
Knifeless flap making makes laser myopia surgery a great addition
Femtosecond laser for myopia is the icing on the cake, but relying on femtosecond laser technology alone cannot achieve a perfect LASIK procedure. The perfect LASIK surgery is a combination of wavefront aberration technology, excimer laser technology, femtosecond laser technology, iris positioning technology, surgeon experience, and operating room conditions.
LASIK surgery can actually be divided into two steps.
The first step, in which the surgeon creates a corneal flap and flaps it open in preparation for the second step.
In the second step, an excimer laser is applied to the inside of the cornea to correct the vision. After these two steps are completed the patient’s vision can be restored quickly. With Intralase femtosecond technology, the surgeon uses a computer-guided laser to create a precise corneal flap, which makes the entire process more controllable and allows for more precise flap size and thickness. And the size and thickness of the flap is critical to a successful LASIK outcome. It is also because of the high precision of the femtosecond laser that patients who were previously ineligible for LASIK are able to undergo this type of surgery.