What is femtosecond surgery

Femtosecond surgery is a surgical method to correct myopia through laser technology. It uses a femtosecond laser to peel and reshape the corneal tissue layer by layer to improve vision. Compared with traditional laser surgery, femtosecond surgery is more accurate and safe, with fewer side effects and complications.

Principle of femtosecond surgery

The laser used in femtosecond surgery can generate high-energy pulse laser in a very short time. This high-energy laser can accurately peel off and reshape the corneal tissue. During surgery, the laser will strip the upper tissue of the cornea layer by layer, and then reshape the curvature of the cornea to correct vision problems. The whole process is very fast and usually only takes a few minutes.

The key of femtosecond surgery is that it can accurately control the corneal layer and maintain the stability of the cornea during the stripping and remodeling process. Compared with traditional laser surgery, femtosecond surgery has less damage to the cornea, reducing the risk of surgery and the possibility of complications.

Femtosecond surgery is usually planned by computer aided programs, and doctors will develop personalized surgery programs according to the patient's corneal curvature and myopia and other parameters. This personalized customization makes femtosecond surgery very suitable for various myopia patients.

Advantages of femtosecond surgery

Femtosecond surgery has many advantages in correcting myopia. First, its correction effect is more accurate. Because femtosecond surgery can accurately control the corneal tissue peeling and remodeling, it can better adjust the corneal curvature to achieve the ideal visual correction effect.

In addition, femtosecond surgery has less damage to the cornea. Compared with traditional laser surgery, femtosecond surgery is more gentle and can greatly protect the stability and health of the cornea. This can reduce the risk of complications and speed up the recovery of vision.

In addition, the recovery period of femtosecond surgery is relatively short. Since the surgery does little damage to the cornea, the vision recovery after surgery is usually faster. Many patients can experience significant visual improvement within a few days after surgery.

Applicability of femtosecond surgery

Femtosecond surgery is suitable for most myopia patients. However, femtosecond surgery may not be suitable for some special cases, such as thin cornea, insufficient tensile strength of cornea, etc. Therefore, before the operation, the doctor will conduct a detailed eye examination to determine whether the patient meets the requirements of the operation.

At present, many famous ophthalmic hospitals around the world provide femtosecond surgery services. For example, the Wills Eye Hospital in the United States, the Eye Center of Johns Hopkins University School of Medicine, and Beijing Tongren Eye Hospital in China are all femtosecond surgery institutions.

summary

Femtosecond surgery is an accurate and safe method to correct myopia. It uses laser technology to peel and reshape the cornea layer by layer to improve vision. Compared with traditional laser surgery, femtosecond surgery has higher correction accuracy, lower risk of side effects and complications, and faster recovery speed. However, femtosecond surgery is not applicable to everyone, and patients need to be evaluated and made decisions under the guidance of professional doctors.