Advantage 1: Minimize the risk of surgery In the traditional lamellar surgery, if the negative pressure ring is loose during the rotation of the blade, the production of the corneal flap will completely fail. The operation can only be done after three months. And the doctor brings great psychological pressure. In the case of "femtosecond laser" surgery, if a similar accident occurs, the doctor only needs to put the negative pressure ring on again and immediately replenish the laser without interrupting the operation. Because the femtosecond laser produces the corneal flap, only some water and air bubbles are generated to push open the corneal tissue, and there is no damage to the tissue. Multiple operations can be performed on the same affected area, and the safety is greatly improved. At the same time, it is worth noting that the negative pressure is too large to damage the fundus, the negative pressure of the lamellar knife is low, and the lowest negative pressure in the femtosecond laser is the Ziemer LDV femtosecond laser.
Advantage 2: Embedded corneal flap, more accurate reduction The lamellar knife is horizontally cut, and the surface of the eyeball is a sphere, so the section of the corneal flap is made of "cup" type, and the fixation of the base of the eyeball is not good enough; The corneal flap made by the second laser and the base of the eyeball are embedded in the "underground manhole" type. The reset is easy to bite tightly, and it will not be misplaced, and there will be no complications such as broken flaps and button flaps. At the same time, its laser source also avoids metal debris residue that may result from the use of a lamellar knife.
Advantage 3: Avoiding iatrogenic infections Many small laser ophthalmic institutions have not strictly implemented the principle of “one person, one blade” in the implementation of LASIK surgery, and have repeatedly implemented the principle of “one person, one blade”, which has greatly increased the cross infection. Medical hazards, "femtosecond laser" made humans leave the lamellar knife for the first time in corneal surgery, and the situation of cross infection during surgery became history.
Advantage 4: Postoperative visual quality is more perfect "Femtosecond laser" can accurately open the molecular chain of the eye tissue to create a more even and perfect corneal flap, effectively avoiding the iatrogenic aberrations that may occur in the lamellar knife flap. It avoids the glare and blurring caused by foggy weather, rainy days and nighttime driving conditions, so that myopia can get perfect visual quality.
Advantage 5: "All-laser" surgery, the accuracy is improved by a hundred times "Femtosecond laser" accuracy is more than 100 times that of the lamellar knife, which is unmatched by the lamellar knife and is safer for any patient.
Advantage 6: Not affected by corneal curvature, wider range of treatment In the past, affected by corneal thickness, nearly 10% of patients are too deep for myopia, the cornea is too thin, and it is basically impossible to accept traditional laser surgery such as LASIK. Femtosecond laser surgery is not affected by corneal curvature, and it is a great boon for patients with myopia who have thin corneas and large variations in corneal curvature.