Scientific and technological principles of femtosecond surgery

Femtosecond surgery is an advanced technology for eye surgery through femtosecond laser technology. This innovative medical technology has been widely used in recent years, effectively improving patients' vision problems. So, what is the technological principle of femtosecond surgery? It will be elaborated from four aspects below.

Laser corneal cutting customized fundus

Femtosecond surgery mainly uses laser to precisely cut the cornea to repair fundus problems such as myopia, hyperopia and astigmatism. The laser adopts femtosecond technology, which means that the laser energy is released in a very short time, and the laser beam contains highly focused tips, which can accurately act on the corneal surface.

The femtosecond laser system will automatically repair the cornea according to the eye measurement data provided by the doctor. First, the patient's eyes will be anesthetized with anesthetic eye drops, and then the glasses holder will be fixed. Then, doctors use the lens of laser corneal cutting to aim at the patient's eyes. The short pulse laser beam released by the laser will cut from the outer layer of the cornea until it reaches the repair depth set by the doctor.

In this way, femtosecond surgery can accurately repair the eyes of patients, reduce the risk of surgery, and improve the success rate of surgery.

Eye tracking technology

Another important part of femtosecond surgery is eye tracking technology. During the operation, the patient's eyes will naturally move slightly. In order to reduce the impact of movement on the surgical results, the femtosecond surgery uses eye tracking technology.

Eye tracking technology is based on high-speed camera equipment, which can monitor the position of eyes in real time. Once the patient's eyeball moves, the laser beam emission will automatically stop until the eyeball is repositioned. In this way, even when the eye moves, femtosecond surgery can accurately cut the cornea.

Self-healing action

Femtosecond surgery creates ideal shape and curvature by precisely cutting the cornea, thus improving the patient's vision. However, the damage caused by this operation in the human body is very small, and the corneal cells can quickly self heal.

Corneal cells automatically fill the laser cut corneal area from surrounding healthy tissues, making the corneal surface smooth and transparent. This self-healing cooperation allows patients not to suture wounds, and do not need special care during the recovery period after surgery, which greatly shortens the recovery time after surgery.

Summary of femtosecond surgery

Femtosecond surgery customizes the fundus by laser cutting the cornea to solve vision problems such as myopia, hyperopia and astigmatism. Its scientific and technological principle realizes the precise repair of cornea through the precise cutting of cornea by femtosecond laser, real-time monitoring of eye tracking technology and the use of self-healing cooperation. This technology has been widely used and has achieved good results. In the future, with the development and improvement of technology, femtosecond surgery is expected to become a more widely used eye surgery technology.