How is femtosecond surgery different from traditional surgery?

Femtosecond laser surgery is a modern ophthalmic surgery method, which is obviously different from traditional surgery. The differences between femtosecond surgery and traditional surgery will be described in detail from four aspects.

Operation principle

Femtosecond surgery is fundamentally different from traditional surgery in the principle of surgery. Traditional surgery uses mechanical blades for cutting, and generates large heat during the cutting process, which may damage surrounding tissues. Femtosecond surgery uses high-energy laser beam to directly act on corneal tissue to achieve accurate tissue cutting and reduce damage to surrounding tissue.

In addition, femtosecond surgery can also be customized according to individual corneal characteristics to achieve more accurate surgery. The position, radio frequency and energy density of the laser can be controlled by the computer, which can be programmed and adjusted according to the patient's corneal topography and corneal refractive status, so as to achieve more accurate postoperative effects.

Operation process

Femtosecond surgery is faster and more accurate than traditional surgery. The traditional operation requires the surgeon to manually cut the cornea with the aid of surgical instruments. The operation time is long and the doctor's experience is highly required. In femtosecond surgery, laser beam irradiation is controlled by computer, which can complete the corneal cutting process in tens of seconds, greatly shortening the operation time and reducing the operation risk.

In addition, femtosecond surgery can also avoid human errors in the process of surgery through real-time monitoring and adjustment. With advanced laser technology, doctors can monitor the corneal refractive status and surgical progress in real time at any time during the operation, and achieve the desired effect after the operation by adjusting the position and energy of the laser.

Postoperative recovery

After traditional surgery, patients often need a long time to restore their vision. Because the traditional surgery cuts the cornea at a deeper level, patients need to experience a longer process of corneal epithelial regeneration, resulting in slower postoperative vision recovery.

The femtosecond surgery cuts the cornea in a shallow depth, which can reduce the surgical trauma and postoperative discomfort. The patient's vision can be recovered quickly after surgery. Usually, he can see distant objects clearly within 24 hours, and his vision will gradually stabilize within a few days.

Operation safety

Femtosecond surgery is safer than traditional surgery. Traditional surgery uses a mechanical blade for cutting, which has potential safety hazards such as the blade is not sharp and the blade is misplaced. In femtosecond surgery, high-energy laser beam is used for cutting, so there is no obvious risk of mechanical blade contacting the eyes, which greatly reduces the safety risk of surgery.

In addition, femtosecond surgery can also adjust surgical parameters, and conduct personalized treatment according to individual differences of patients and surgical needs. Computer control of laser position and energy density can better protect patients' corneal tissue and reduce the risk of surgery.

Summary

Compared with traditional surgery, femtosecond surgery is significantly different in terms of surgical principle, surgical process, postoperative recovery and surgical safety. Femtosecond surgery uses laser technology to achieve accurate corneal cutting, and makes personalized adjustments according to individual differences. The surgery process is fast, accurate, and has higher security. The postoperative recovery was fast and the visual acuity was stable. Therefore, femtosecond surgery has been widely used in the field of ophthalmic surgery, and has become an important choice of modern ophthalmic surgery.