The duration of femtosecond surgery

Femtosecond surgery is a common corneal refractive surgery, which is widely used to correct myopia, hyperopia and astigmatism. The duration of femtosecond surgery depends on several factors, including the patient's corneal curvature and the severity of the vision problems that need to be corrected. Generally speaking, the operation can be completed in a few minutes.

Preoperative preparation

Before femtosecond surgery, the doctor will conduct a comprehensive eye examination to ensure that the patient is suitable for surgery. These examinations include measurement of corneal thickness, corneal curvature and pupil size. If the patient's eye health meets the operation requirements, the doctor will decide the operation plan and determine the parameters used during the operation.

On the day of operation, the patient needs to arrive at the hospital in advance and receive the use of anesthetic eye drops. Anesthetics can effectively alleviate the discomfort during the operation. Preoperative preparation may take one to two hours.

Operation process

Femtosecond surgery uses a technique called femtosecond laser to thin the cornea and adjust its shape to correct vision problems. This procedure is very precise and highly automated. The whole process is monitored and controlled by doctors and professional technicians.

At the beginning of the operation, the patient will be required to buckle the eyelid fixator to prevent blinking. Then, the doctor will use a femtosecond laser to create a thin slice on the cornea, called a slit, and then turn it over. Next, the laser will use the preset parameters to thin the middle of the cornea to achieve the desired shape. During surgery, femtosecond laser will accurately release pulses to the cornea to control the depth and position of thinning.

After the operation, the doctor turns back and flattens the thin cornea, and then performs eye optometry to ensure the effect of vision correction. The entire procedure is usually completed within 10 to 20 minutes.

Postoperative recovery

After the operation, the patient needs to rest for a period of time. Doctors usually ask patients to keep their eyes closed for a few hours after the operation, and provide eye protection masks to protect their eyes. In the next few days, the patient may feel dry eyes and slight discomfort, which is a normal reaction. The doctor will provide antibiotic eyedrops and anti-inflammatory eyedrops to prevent infection and alleviate discomfort.

A few days after the operation, the patient needs to return to the hospital for further consultation. The doctor will evaluate the effect of the operation and check the recovery progress. Vision usually recovers gradually within a few days after surgery, but it may take several weeks or more for complete recovery.

summary

Femtosecond surgery is a fast and effective corneal refractive surgery, which is suitable for the correction of myopia, hyperopia and astigmatism. The operation is usually completed within a few minutes, the operation process is precisely controlled, and the recovery period is short. However, preoperative examination and postoperative recovery are equally important to ensure a good outcome of the operation.