Comparison between femtosecond surgery and traditional surgery
Femtosecond surgery and traditional surgery are two common surgical methods in the field of ophthalmic surgery today. There are obvious differences between them in operation steps, operation effects, postoperative recovery and operation risks. The following will be described in detail from four aspects.

Procedure
Traditional surgery usually uses hand-held cutter or laser cutting machine to cut cornea to change the shape of cornea. This process requires manual operation by doctors and takes a long time. Femtosecond surgery uses femtosecond lasers, which can complete corneal ablation in a very short time. Femtosecond laser can cut cornea with very high accuracy, avoiding the error caused by manual operation in traditional surgery.
Femtosecond surgery cuts the cornea into the desired shape through a series of bubbles formed by the laser in the eye. This laser cutting method will not cause damage to other tissues of the eye, and the operation process is safer.
In addition, femtosecond surgery can also achieve complete separation of the upper layer of the cornea, while traditional surgery uses manual separation, which requires more time and technology.
Surgical effect
Femtosecond surgery is more accurate and stable in the surgical effect. Due to the high-precision control of laser, femtosecond surgery can better control the cutting depth and shape, thus providing more accurate vision correction effect.
Although traditional surgery can correct vision, due to the limitation of manual operation, the effect of surgery is relatively poor, and postoperative vision fluctuation is easy to occur.
Femtosecond surgery has also shown better results in the treatment of some complicated corneal diseases. For example, in the treatment of corneal transplantation, femtosecond technology can more accurately complete corneal segmentation and transplantation, and improve the success rate of transplantation.
Postoperative recovery
Femtosecond surgery has great advantages in postoperative recovery. Since the femtosecond laser has less damage to the cornea, the postoperative pain and discomfort of patients are significantly reduced compared with traditional surgery. Postoperative vision recovery is also faster, usually patients can achieve good vision within a few days after surgery.
Because of the manual corneal cutting, the traditional surgery has a greater trauma to the cornea and a slower recovery after surgery. Patients often need a longer time or adjuvant drugs to help restore vision.
Surgical risk
Although femtosecond surgery has obvious advantages in surgical procedures and surgical effects, there are still some surgical risks. As femtosecond laser is a new technology, some potential side effects and complications are still under study.
After long-term clinical practice, the risks and complications of traditional surgery have been relatively clear. Complications that may occur during surgery include infection, corneal disease deterioration and corneal scar.
Therefore, when choosing the operation mode, patients should choose the operation mode suitable for themselves according to their own conditions and doctors' suggestions, and comprehensively consider the factors such as the operation effect, postoperative recovery and operation risk.
Summary
Femtosecond surgery and traditional surgery are both common ophthalmic surgery methods. They are different in surgical procedures, surgical effects, postoperative recovery and surgical risks. Femtosecond surgery uses laser to achieve corneal ablation, making surgery more accurate and safe; The surgical effect is more stable, and the postoperative recovery is faster; However, femtosecond surgery still has some side effects and risks. Therefore, when choosing a surgical method, patients should consider their personal conditions and doctors' suggestions comprehensively and choose a suitable surgical method.