Q & A on laser myopia surgery

Abstract: in fact, femtosecond laser surgery is one of excimer laser surgery. Excimer laser surgery is a general name. The name of surgery is different according to different surgical methods. Femtosecond laser surgery is to use femtosecond to make corneal flap. It has many advantages, such as eliminating infection, rapid recovery of vision after operation, good visual quality and so on.

1. What is excimer laser myopia surgery?

excimer laser is a kind of ultraviolet light invisible to human eyes after being excited by the mixing of fluorine and argon. Its wavelength is only 193nm and will not penetrate into the eye. It is a cold laser without thermal effect. It can accurately vaporize human corneal tissue by “irradiation”, To achieve the purpose of “cutting” and “carving” the cornea without damaging the surrounding tissues and other organs, its unique nature is the most suitable for corneal refractive surgery. Excimer laser surgery is to use excimer laser to refractive irradiate the stromal layer under the corneal flap, so as to reduce the corneal curvature in the pupil area and achieve the purpose of correcting myopia. Generally speaking, the cornea is regarded as a transparent material and made into a pair of lenses through irradiation.

2. What is femtosecond laser surgery?

in fact, femtosecond laser surgery is one of excimer laser surgery. Excimer laser surgery is a general name. The name of surgery is different according to different surgical methods. Femtosecond laser surgery is to use femtosecond to make corneal flap. It has many advantages, such as eliminating infection, rapid recovery of vision after operation, good visual quality and so on.

3. Who is suitable for laser surgery?

laser surgery is not for everyone. First, the age should be between 18 and 55. Secondly, myopia should be below 1200 degrees, hyperopia below 300 degrees, astigmatism below 600 degrees, and the diopter has been stable in recent two years, and its development rate is no more than 50 degrees every year.


also suffer from eye diseases such as dry eye, glaucoma, irinitis, eyeground hemorrhage, and other diseases, such as diabetes, immune, collagenous and other systemic diseases, and those with scarring.

if you meet the operation conditions but have concerns about the operation safety or high expectations for the operation effect, we don’t recommend you to have an operation. It’s best to choose after more understanding. We will do detailed and strict preoperative examination for you before the operation. If you can’t do the operation, we will never do it for you, and no one is willing to bear the unexpected risk.

4. How much vision can the operation restore?

surgery can restore the best corrected vision before operation, that is, the vision you can achieve with the most suitable frame glasses. For example, if you have 1.5 vision with glasses, you can achieve 1.5 vision after operation. There will be small fluctuations around according to individual differences. This is normal.

5. How long can the operation be managed?


can be managed for a lifetime. Because we operate on the corneal stromal layer, the corneal stromal layer will not regenerate, so the degree is stable. However, there is also a slight regression due to individual differences. Generally, the probability of high myopia is high, but such probability is very small.

6. Does the operation require hospitalization? Can you reimburse medical insurance?


do not need to be hospitalized and cannot be reimbursed for medical insurance. Laser myopia surgery cannot be reimbursed for medical insurance in any hospital, which is stipulated by the state. The whole operation only takes about 20 minutes, only a few minutes on the operating table, and even dozens of seconds with laser. Check after the operation. If there is no problem, rest for half an hour and go home.

7. How long do you need to rest after operation? I’m too busy to rest.


can go to work normally after reexamination the next day after operation, which does not affect work and life. We have an operation day on Saturday. Considering white-collar workers, we can operate on Saturday, review and rest on Sunday, and work normally on Monday.

in fact, vision began to improve slowly a few hours after the operation. According to different operation methods, the speed of vision improvement is also different, and the speed of femtosecond laser is the fastest. Generally, other operations will return to the best corrected vision within up to three months.

8. Can you eat on the day of operation?


can eat on the day of operation and keep a relaxed and happy mood. But please don’t drive alone. It’s best to be accompanied.

9. Whether wearing contact lenses before will affect the surgical effect?

rest assured that the surgical effect will not be affected after stopping wearing. If you wear contact lenses before, you should stop wearing soft lenses for 1 ~ 2 weeks and hard contact lenses for more than one month, because wearing contact lenses will affect the corneal test results. Only by wearing frame glasses can you do the most accurate preoperative examination. Only when the preoperative examination is clear can you get the best surgical effect.

10. Will the operation hurt? During the


operations, anesthetics will be used. The feeling is different according to different personal conditions. Most people feel no pain. But some people feel a little uncomfortable. Femtosecond laser has the lightest reaction.

11. If I close my eyes during the operation, will I be blind?

absolutely not. Excimer laser is a cold laser with extremely short wavelength, which will not hurt other tissues of the eye at all. And the eyes will be opened during the operation, so you can’t close your eyes. Even if your eyes turn, our instrument is three-dimensional tracking and will stop immediately.

12. Can’t you watch computers and play mobile phones after surgery?

is OK. However, please pay attention to eye hygiene after operation. Try to reduce computer operation, watch less TV and read less books within a week. Because this period of time is the recovery period of the eyes, don’t be tired and use the eyes. You can have a 10 minute computer rest every 30 minutes.

13. Can I wash my hair and face after operation?

is OK. When washing your hair and face, you only need to avoid around your eyes and wipe it with a wet towel. You can take a shower below the shoulder, but avoid getting water into your eyes. In addition, one week after operationPlease avoid sweat and lotion from flowing into your eyes. If you accidentally get water to your eyes, don’t panic. Just drop eye drops according to the doctor’s requirements. Our doctor will tell you in detail at that time.

14. What should you pay attention to in your daily life after operation?

do not eat spicy and irritating food within one month after operation. Do not bungee jumping, diving, swimming, eye makeup, etc. within one month after the operation. After that, you can live a normal life as before.

15. Can I drive or ride a bike after operation?

most patients can recover their good eyesight and drive the next day, but because there will be individual differences after the operation, please discuss with the doctor during the follow-up visit. You may not see clearly at night. Please avoid driving at night before you see clearly at night.

16. What if you are myopic again after the operation?


mentioned earlier that the possibility of large myopia again after operation is very small, and some will only be slight. If it happens, we can also correct your vision through secondary synergistic surgery.

17. Who has done laser myopia surgery?

many people choose laser myopia surgery every year, most of them are young people. Among them, civil servants, police, athletes, white-collar workers, students, stewardess, pilots and even many stars have done it. You can check it. Magician Liu Qian also posted a microblog for laser myopia surgery.