What is femtosecond
Femtosecond laser is a modern corneal refractive surgery, which is mainly used to correct myopia, hyperopia and astigmatism. This technology uses laser to create a very thin corneal flap in the eye, and improves vision by changing the shape of the cornea. Compared with traditional corneal refractive surgery, femtosecond laser has higher accuracy and lower risk of complications.
Femtosecond laser surgery is generally performed in the ophthalmology department of the hospital. The doctor will conduct a detailed eye examination of the patient in advance to determine whether the surgery is suitable.
Operation preparation and operation process
Before surgery, the doctor will perform an eye examination on the patient, including measuring the corneal curvature and thickness, to determine the applicability of the surgery. If the patient meets the conditions, the doctor will explain the process and risks of the operation, and make the operation plan according to the needs of the patient.
During the operation, the doctor will first anaesthetize the patient's eyes, then use the laser equipment to create a very thin corneal flap, then turn over the flap, and then use the laser to change the shape of the cornea. The whole procedure is usually completed in a few minutes.
Risk and complications of surgery
Although femtosecond surgery is a very safe ophthalmic surgery, there are still some potential risks and complications.
First, because everyone's corneal shape and structure are different, the predictability of surgery is not 100% accurate. In some cases, the surgery may not achieve the desired effect, and further adjustment or additional surgery is required.
Secondly, femtosecond surgery may cause some complications, such as infection, corneal dryness, corneal ulcer, etc. The incidence of these complications is low, but patients still need to pay close attention to the postoperative eye conditions and care according to the doctor's recommendations.
In addition, temporary symptoms such as blurred vision, light sensitivity and glare may occur during and after surgery, but these symptoms usually disappear within a few days.
Choice and suggestions for hospitals to make femtosecond
It is very important to select an eye hospital with good reputation and advanced equipment for femtosecond surgery. When choosing a hospital, patients can refer to the professional ophthalmic equipment of the hospital, the experience and qualifications of doctors and other factors.
In addition, the patient needs to carry out eye examination and assessment according to the doctor's recommendations before surgery, and inform the doctor of his personal health status and medication, so that the doctor can make appropriate surgical decisions.
After surgery, patients should follow the doctor's advice for regular reexamination and eye care, especially to avoid eye rubbing, overuse and other behaviors.
Summary
Femtosecond is a modern corneal refractive surgery, which can correct myopia, hyperopia and astigmatism. Femtosecond surgery is generally safer in hospitals, but there are still some potential risks and complications. When choosing a hospital, patients should consider the hospital's equipment and the doctor's experience, and carry out eye care before and after surgery according to the doctor's recommendations.
