Experts help you win the college entrance examination | After the college entrance examination, there is a "glasses removal craze"! How to perform myopia correction surgery? Please keep this "glasses removal guide"

It is the annual college entrance examination season again. Many majors have corresponding requirements for vision. For candidates, to knock on the door of their dream university, they need not only ideal scores, but also clear vision. After the college entrance examination season every year, myopia surgery will also be popular among college entrance examination candidates.

Can I pass the physical examination after myopia surgery? What kind of surgery is suitable for college entrance examination students? At what age can I have myopia surgery? Recently, Xie Xiuli, deputy chief physician of the refractive department of Aier Eye Hospital affiliated to Wuhan University, was a guest in the "Experts Help You Win the College Entrance Examination" live broadcast room of Chutian Metropolis Daily and Jimu News, answering questions and solving doubts for candidates and parents.

The child's eyes are severely dry and need treatment before surgery

Jimu News: My child’s eyes are prone to dryness. Is he suitable for myopia treatment surgery?

Xie Xiuli: Dry eyes are caused by many factors. If the eyes are just a little dry after using the eyes for a long time, this dryness can be alleviated by adjusting the time and habits of using the eyes. But dry eyes also have different degrees. If the degree is very serious, the child can no longer tolerate it if he does not study and use his eyes much. In this case, a careful examination and systematic treatment must be carried out before the operation to ensure that the problem of dry eyes is effectively alleviated before myopia surgery can be performed.

Jimu News: Can students who often wear contact lenses undergo myopia surgery?

Xie Xiuli: Most people who have worn contact lenses meet the surgical requirements through preoperative examinations, but a small number of people may have worn contact lenses for too long, causing their eyes to become dry and unbearable, and in this case, they need to undergo treatment for a period of time. Or some people have worn contact lenses for 10 or even 20 years, causing some corneal hypoxia or other effects, so preoperative examinations must be strictly and carefully evaluated to assess whether the eye conditions are suitable for surgery. If they are suitable, most of them will be fine.

Jimu News: Some students who want to apply to military and police academies are very concerned about when they should have the surgery?

Xie Xiuli: We generally recommend that patients have surgery in advance if their refractive power and academic performance are stable and they have a good idea of ​​their predicted college entrance examination scores. However, if the degree is not very stable or if you think there are still some variables in the test results, it would be better to do it after the college entrance examination.

Jimu News: Senior year of high school is a period of intensive eye use. Do you think it is appropriate to have myopia surgery now or after the college entrance examination?

Xie Xiuli: If you need to take a physical examination for a military academy, it may be better to do it in advance; if you are taking a physical examination for a police academy, or just want to remove your glasses for the convenience of your future life, most people still recommend doing it after the college entrance examination.

Jimu News: Some candidates and parents have questions: Can they pass the physical examination after undergoing myopia surgery?

Xie Xiuli: Generally, there is a standard vision requirement for physical examinations. If the vision examination standard is 0.8, then we can pass the test if the vision reaches 0.8 after the operation. However, some children may not only have myopia problems, but also have amblyopia or even other eye diseases. It may not achieve the expected results, so we need to consider it carefully. So in general, preoperative examinations are still required, and various parameters of the eyes are carefully and strictly evaluated before a judgment can be made.

Jimu News: At what age do you think it is best for children to undergo myopia surgery?

Xie Xiuli: Generally, we still recommend doing it after finishing high school, because during this period of time, the eye development, eye habits and living habits, including the child's mind and thinking are relatively mature and stable. Because surgery is actually a choice, this choice will not only affect study planning and career planning, but also involve future vision planning.

Avoid eye trauma regardless of whether you have surgery or not

Jimu News: Some parents are worried that their children are too young and afraid of pain. Will myopia surgery be very painful?

Xie Xiuli: Some parents worry about their children's fear of pain. Actually, there is no need to worry about this. We usually put eye drops on the surface of the eye before the operation to act as anesthesia. The whole operation takes about 10 minutes. Although the patient is awake and knows that he is undergoing surgery, he will not feel obvious pain and the operation is tolerable.

Jimu News: A netizen asked in the live broadcast room that he accidentally hit his eye after the operation and wondered if there would be some residual problems?

Xie Xiuli: Here we want to popularize ophthalmic knowledge. In fact, whether or not you have had surgery, there are three most basic requirements for ophthalmology. The first is eye hygiene. Try not to rub your eyes. The second is to use your eyes properly. Whether or not you have had surgery, you should use your eyes properly. The third is to prevent trauma. Whether or not you have had surgery, the eyeball is relatively fragile among the five senses. If it is only a relatively minor trauma, it will not be affected. But if it is a relatively major trauma, especially for myopic patients, many people may be highly myopic, and the eyeball grows and becomes thinner. Compared with normal people, the ability to tolerate trauma is actually reduced. Even if laser surgery is done on the surface of the eye, the cornea is not affected, but collision, confrontation and concussion will cause abnormalities in the retina. So we still hope to avoid trauma as much as possible, but if you accidentally get injured, you should go to the hospital for treatment in time.

Jimu News: How many days does it take to prepare for myopia surgery? Do I need to be hospitalized?

Xie Xiuli: In fact, the current myopia surgery is adapted to the fast pace of society at this stage. Most of the myopia surgeries currently have very fast recovery. Generally speaking, myopia surgery is divided into two categories, one is laser surgery and the other is lens surgery. If the laser surgery is well prepared before the surgery, the examination is done on the first day, the surgery is done on the second day, and the reexamination is done on the third day, most people's vision may have recovered.

The difference of lens implant surgery is that everyone's eyes are unique, and the power and size of the lens required for each eye need to be customized. In this case, an examination is usually done first to confirm that the surgery can be done, and then the lens is booked. The surgery is arranged after the lens comes back. The recovery after the surgery is also very fast, but the process is slightly more complicated than laser surgery.

The time on the laser operating table is generally about 10 minutes, and the time on the lens operating table is 5 to 10 minutes. The slightly different thing about lens surgery is that it requires one eye to be operated on a day, and a follow-up examination will be conducted on the third day after the operation. So whether it is laser surgery or lens implantation surgery, it will take about 3 days if the preliminary preparations are done well. But it is worth mentioning that although it takes 3 days, there is no need for hospitalization. It is an outpatient surgery. After the follow-up examination, if there is no problem, you can go home and rest.

You should also insist on using your eyes properly after surgery, and eye health requires lifelong maintenance

Jimu News: A question that many netizens are concerned about is, will myopia rebound after surgery?

Xie Xiuli: The problem of rebound is sometimes unavoidable, but we will conduct a detailed and strict evaluation before the operation. If the degree is very stable and the eye habits are very stable, we are not too worried about rebound after the operation. But what kind of people may worry about the problem of rebound after surgery? Some people with higher degrees undergo laser surgery, because laser surgery requires cutting corneal tissue. The cornea will become thinner after surgery, but there is pressure in the eyeball. In this case, a very small number of people will have rebound. In general, the probability of rebound in most patients with stable degrees and normal parameters is very small.

Another type of surgery is lens implantation. If your myopia is 800 degrees, we will implant an 800-degree lens. This lens will be in your eyes for 10 years, or even 20 years, and it will still have the same effect. But if after 3 years, you have a new degree of myopia, this is not actually a rebound. Because the surgery did not correct the cause of myopia, the cause of myopia is still in the patient, whether it is caused by congenital factors, genetic factors or eye habits, these factors cannot be regulated by surgery. So after the operation, we still require reasonable use of the eyes. Generally, if the eye conditions are suitable for surgery and the eyes are used properly after surgery, the probability of rebound is very small.

Jimu News: After undergoing myopia surgery, do you still need to go to the hospital for eye checks as frequently as you did before you had myopia?

Xie Xiuli: There is a regular check-up time node after surgery, such as 1 day, 1 week, 1 month, 3 months, 6 months, and 1 year after surgery. There are nearly 6 check-ups in a year. After these time nodes, if your eyes feel uncomfortable or tired, I hope you can go to the hospital for treatment to put your mind at ease.

If some patients know that there are some special things about their eyes before the operation, for example, the doctor tells you that your baseline intraocular pressure is high and you need to check your intraocular pressure regularly in the future, or if you are a high myopic patient and your eyeball has been severely deformed and your retina has become thinner, or if you have undergone corresponding treatment before the operation, such patients must follow the doctor's advice and have regular check-ups after the operation.

One thing that needs to be made clear is that even if you have myopia surgery, it only solves the problem of diopter, but the eyes cannot return to the state before myopia. The deformation of the eyeball caused by myopia is irreversible. We only change the impact of diopter on vision, but the maintenance of eye health is a lifelong management, so if there are special doctor's orders, they must be strictly followed.