Guangxi Ruikang Hospital: What is the difference between femtosecond surgery and laser surgery?

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What is the difference between femtosecond surgery and laser surgery?

In the field of ophthalmic surgery, femtosecond surgery and laser surgery are common methods to treat myopia, hyperopia, astigmatism and other eye problems. However, there are some differences between the two. The following is a detailed description of the operation principle, operation process, treatment effect and postoperative recovery.

Operation principle

Femtosecond surgery uses a technology called "femtosecond laser", which can complete the surgery in a very short time (about femtosecond level) through the laser beam. This laser can precisely cut and evaporate tissue, thus changing the shape of the cornea.

In contrast, laser surgery uses excimer laser, also known as traditional laser surgery. It uses continuous wave laser to cut the corneal surface layer by layer, and then changes the shape of the cornea through laser burning.

Because the femtosecond laser action time is very short, it can reduce the damage to the surrounding tissues of the cornea, and improve the safety and reliability of the operation.

Operation process

The operation process of femtosecond surgery is relatively simple and fast. Before surgery, patients will receive local anesthesia, and then doctors will use femtosecond laser equipment to cut and change the shape of the cornea. The operation is usually completed in a few minutes.

The operation process of laser surgery is relatively complicated. Patients also need local anesthesia, and then doctors use excimer laser to cut and burn the cornea layer by layer to complete the operation.

It can be seen that femtosecond surgery is more accurate and faster than laser surgery, which can reduce the operation time and patient discomfort.

treatment effect

Femtosecond surgery and laser surgery also have differences in therapeutic effects. Femtosecond surgery can change the shape of the cornea through precise laser cutting, so as to better correct vision problems. Laser surgery changes the curvature of the cornea through laser cauterization to achieve the purpose of correction.

Because the operation process of femtosecond surgery is more accurate, it can better meet the individual needs of patients and provide better treatment results.

Postoperative recovery

Femtosecond surgery and laser surgery are also different in postoperative recovery. The incidence of postoperative infection and complications is relatively low because the femtosecond surgery is less traumatic to the cornea. The patient recovers quickly after surgery, and usually can basically return to normal life within a few days.

Laser surgery, on the other hand, causes great damage to the cornea, so the recovery after surgery is relatively slow. Patients may need a longer time to recover their vision, and are also prone to postoperative infection and complications.

summary

To sum up, although femtosecond surgery and laser surgery are common ophthalmic surgery methods, there are obvious differences in surgical principles, procedures, treatment effects and postoperative recovery. Femtosecond surgery is more accurate and fast, which can reduce the operation time and patients' discomfort. In terms of therapeutic effect, femtosecond surgery can better meet the individual needs of patients. In terms of postoperative recovery, femtosecond surgery has a faster recovery rate and a lower incidence of complications.

Therefore, when choosing ophthalmic surgery methods, patients can choose the most suitable treatment method according to their own conditions and needs, taking into account the advantages and disadvantages of femtosecond surgery and laser surgery.