Does femtosecond surgery hurt? No anesthesia? !

Update Date: 2023-01-10 Source: Network

summary

Nowadays, many people will have myopia. Myopia brings great inconvenience to many people's life. Many reasons for myopia are due to overuse of eyes. Do you know the pain of femtosecond surgery?

Does femtosecond surgery hurt? No anesthesia? !

First, laser surgery for myopia is to use a special and extremely precise micro corneal lamellar cutting system (referred to as keratotome) to make a round corneal flap with pedicle from the surface tissue of cornea. After turning the corneal flap, under the control of computer, the part of the tissue to be removed from the corneal stroma layer under the flap is accurately vaporized by excimer laser, and then the corneal flap is washed and removed under the flap In order to correct myopia, "hyperopia" or "astigmatism", the anterior surface of cornea should be changed and the refractive power of cornea should be adjusted.

Second: myopia laser surgery is a kind of "painless" surgery, its safety is not to worry about. Myopia laser surgery is carried out on the cornea of the eye, because there are no blood vessels on the cornea, and there are abundant nerve endings on the surface. The nerve endings on the surface of the cornea can be completely anesthetized by topical anesthetics. There is no consciousness or "pain" feeling during laser treatment. After the operation, you can go home without hospitalization, which does not affect the normal use of the eyes.

Third: half an hour after laser surgery for myopia, there will be obvious irritation symptoms such as foreign body sensation, photophobia and tears in the eyes, which will gradually disappear 3-5 hours after surgery, and the length of time varies from person to person. What we need to do during this period is to have a rest with eyes closed. After 3-5 hours, we have no feeling and our eyesight has recovered.

matters needing attention

Although myopic surgery does not hurt, but not everyone can do laser surgery, let's let Xiaobian to introduce the people who do not adapt to surgery.