Myopia surgery-semi-femtosecond surgery process and result sharing

Regarding the similarities and differences of laser excimer, semi-femtosecond, full femtosecond and crystal implantation, in view of many comprehensive explanations and explanations on the Internet and the particularity of my situation, here I only introduce my preoperative examination, surgical process, postoperative effect and postoperative feelings.

My situation description:

30-year-old, male, graduated from 15, Ph.D., engaged in the Internet-autonomous driving industry for three years, and used his eyes for a long time. The naked eye vision of both eyes is less than 0. 1, including left eye myopia of 675 degrees, right eye myopia of 225 degrees, binocular difference of 450 degrees (scientific name anisometropia), left eye astigmatism of 25 degrees, right eye astigmatism of 25 degrees, strabismus (exotropia of 9 degrees, lower shadow tilt of 5 degrees, rotation tilt). The dominant eye is the right eye. Seeing things far away and seeing things near are entirely for eyes, and the position of the left and right eyes is much different.

The landlord was nearsighted when he was a child (the naked eye vision was about 0.8 before the age of 6, and it improved after correction).

In high school, myopia in the right eye was 250 and hyperopia in the left eye was 50. I went to the hospital to check my eyesight. The doctor said that it is rare for me to be nearsighted and farsighted in my left and right eyes. At that time, I wore glasses, but because of the difference of eyes, I felt dizzy after wearing them, so I gave up. So until now, my eyesight is getting worse and worse.

Preoperative examination

I want to learn driving this year, so I want to try again with my glasses at the beginning of the year. The result is still dizziness, so I want to have an operation once and for all. Go home for the New Year (my hometown is a third-tier city in central China) and go to a specialized hospital for examination. The results show that laser excimer surgery and semi-femtosecond surgery can be done (hospitals can't do full femtosecond surgery, they can only fly half). The doctor said that my anisometropia did not affect the postoperative effect at all, and said on the spot that it would be fine as soon as it was finished, without any discomfort. At the same time, the doctor told me that laser excimer effect is good, corneal incision is more perfect, visual experience is higher, and laser surgery is more mature than semi-femtosecond. He also said that all the doctors in this hospital are studying in the Eye Hospital affiliated to Wenzhou Medical College. The research results of that hospital show that the effect of laser is better than half femtosecond, and laser surgery has almost no shortcomings.

I asked about the price, and found that the price of TransPRK is 27,000 yuan, and the price of semi-femtosecond is14,000 yuan. At that time, considering the doctor's strong recommendation, I paid TransPRK's money and took the medicine to prepare for the operation this afternoon. While waiting, I think that if a surgical plan is so good and has almost no shortcomings, then other immature methods are unnecessary in theory, at least in academic research. No method is perfect, the key is to choose the right method according to the actual situation, so I started to go to Zhihu to read relevant comments. Comments say that the three operations have their own advantages and disadvantages, but the price of TransPRK should be the lowest among the three, and I began to doubt it at that time. Moreover, the doctor said that I would not feel any discomfort after the operation of anisometropia, which also made me doubt. After all, the human eye is a binocular vision system. If the corneal thickness changes, the brain must recalibrate the changes in the eyes. Although the human brain has evolved for hundreds of thousands of years, it needs a process anyway. After all, you will feel dizzy after wearing glasses, and the muscle memory around your eyes is not so easy to change. The above made me have strong doubts, so I went to the doctor who examined me and continued to ask questions. The doctor said he was impatient, explained it briefly and went to answer the phone. So I started calling some friends for advice.

The first friend I consulted worked in the Eye, Otolaryngology Hospital affiliated to Fudan University. The original words are: "Our center has more than 200 patients undergoing femtosecond surgery every day. No research shows that laser surgery is better than femtosecond surgery, and femtosecond surgery has the largest amount. And now it advocates minimally invasive surgery. Laser has a big trauma and a long recovery time, so it is not recommended for patients. Of course, after femtosecond surgery, there may be some situations such as decreased vision, glare, photophobia, etc., but by the way, this friend had a semi-femtosecond surgery, and his vision deteriorated one year after surgery.

The second person I consulted was a doctor in a specialized hospital in Guangzhou. A friend of mine had a semi-femtosecond operation there, saying that the service there was good and the postoperative effect was good, and he always recommended me to go. The original words are: "The Chinese New Year is coming soon. How can I celebrate the Chinese New Year with the intense pain after the operation?" Everyone's condition must be checked before they know, and the suitable surgical methods are different, so they can be checked again after the year. But we have done a lot here in half femtosecond, which is very mature. "

After hearing this, I decided to refund my money. At that time, I thought I couldn't fly all over here, so I recommended the laser. At least I should find a hospital that can fly all over and check it out.

I have been very busy since I returned to Shenzhen, and I didn't have time until the May Day holiday. During the period, I consulted a lot of information. I feel that semi-femtosecond surgery is more suitable for me. The first is minimally invasive, which will not cause possible pain after operation. It will recover quickly, and the visual effect is better than full femtosecond. Moreover, I personally have no hobby of extreme sports, and I don't need to have full femtosecond surgery. During this period, two colleagues advised me to think carefully. One colleague said that his friend chickened out after the operation. Another colleague said that his friend was dazzled for three years last night and could not drive at night for three years. In short, I am a little embarrassed by the opinions of people around me, but considering that I can't wear glasses, I still firmly believe in surgery. After all, it's better not to drive at most at night than not to drive at all.

Surgical procedure

I went to Guangzhou on the morning of April 29th and went directly to the hospital for examination. I thought my eyes were suitable for all surgical schemes because of my previous experience of going home for examination in the New Year, so I went there for a little examination and returned to Shenzhen on the 30th.

As a result, the doctor explained to me that my eyes were anisometropic with a difference of 450 degrees. In this case, they will first advise me to wear glasses for a while to adapt, otherwise I am afraid that I will not adapt after the operation, because they have had similar examples before. I was a little embarrassed at that time, because when I checked at home during the New Year, the doctor there said that it was completely fine. Wearing glasses on the spot makes me dizzy. The doctor asked me to walk around or read a book, so I took out a book and began to read it. After reading it for a while, I found it was no good. I feel dizzy and have a bad ghost. So I stood up and walked, and found that the edge of the floor tile had become distorted, and the whole floor had become a non-European space. Besides, I can't estimate the depth information of the object. The doctor told me that the effect after the operation will definitely be better than wearing glasses, but the specific effect is suitable for everyone. It is possible that for a period of time after operation, things will appear ghost, and the estimated depth is not allowed to be distorted on the ground, and the duration is uncertain, which can be long or short. At that time I continued to be arrogant. Although I understand the reason for this phenomenon, I am beginning to be afraid.

After wearing glasses for three hours, my dizziness is slightly reduced but I still feel uncomfortable. The doctor said that he would mydriasis today and then give me a test, for fear that the test would not be accurate. After mydriasis, I measured diopter and astigmatism. The doctor said it's okay. I can come here for surgery early tomorrow morning, and take out my test results and tell me every index in them. Then tell me that the outermost part of my retina is very thin. It is best to check the fundus every three years to prevent retinal detachment. Compared with the inspection at home during the New Year, the inspection here is much more detailed, which also makes me glad that I didn't have surgery at home during the New Year.

I went to the hospital in the morning of April 30th, thinking that I could do it directly. The doctor invited the chief surgeon here to recheck me, saying that the strabismus should be measured according to my condition, which would help to determine the final surgical plan. Then I wondered, won't you do it after the machine is swept? Do you still need to make a plan? The doctor told me after the examination that my strabismus was all-round. In this case, the eyes may not be able to focus after the operation, and the visual fatigue will be stronger. I may need special rehabilitation, so I was forced to call for advice.

The first person to consult is a friend of a friend, an ophthalmologist in a hospital. The original words were: "You should have done this earlier, and you shouldn't have waited so long. Your postoperative recovery may be slow, but the problem is not big. "

The second is my mother's classmate, an ophthalmologist in a hospital. Original words: "strabismus is mainly caused by anisometropia, which will be weakened after surgery. Even if the rehabilitation effect is not good, there are ways to treat it."

So I made up my mind to do it, paid the money and put the medicine down. At this time, the Dean came, the doctor told the Dean about my situation, and the Dean gave me another examination (three times, my heart was completely out of order). The director of the backyard and the doctor told me: "If there is any possible risk, we will not operate on the patient. You can do this, but the possible conditions after operation (dizziness, eyes can't focus properly, etc. You may need rehabilitation training in the future) you should write it on the consent form for surgery. This is not that we shirk our responsibilities, but that we need to let you know all possible problems. If you feel scared and don't want to do it, that's okay. We can refund all possibilities. So I quickly called my mother, and my mother suggested that I do it, saying that doctors would amplify the risks before surgery, especially this kind of operation that can be done or not. So I made up my mind. This process is tangled, but it is really because of the particularity of cornea and my own situation that I have to think twice.

Before the operation, the doctor will let me practice staring for one and a half minutes. At three o'clock in the afternoon, I lined up in the operating room to prepare surgical gowns. About 30 people went in together and began to make preoperative preparations. I mainly disinfect my eyes and face with liquid medicine, anesthetize my eyes, and then I wait in line to enter the operating room. I feel a little sick after dropping anesthetic.

The first step of the operation is to make corneal flap, that is, to cut the corneal epithelial layer about 100um. This process takes 15 seconds for each eye, the first machine is used to press it on the eye, and then something like a probe is turned around on the surface of the eyeball. After the eyes are valved, drop anesthetic and wait in front of the second machine. At this time, my eyes are foggy, which should be because of the potion in the incision.

The second step of the operation is to cut the cornea and use a second machine. Doctors need a long time to prepare. During the process, the doctor will tell the eyeball not to move, relax and stare at the green spot in the machine. After the preparation is completed, I feel that the doctor pulled out the eyeball with something first. This should be just opening the corneal flap and then laser cutting on the machine. At this time, you can see green spots and smell burning. The doctor will say that the eyeball can't move, and you will be interrupted when you operate. Afterwards, a nurse dropped a potion in her eye, and then the doctor wiped the eyeball with a piece of gauze. It should be to wipe off the cut cornea, and then pull the eyeball. It should be to cover the corneal flap, and then rinse the eyeball with eye drops. The operation of one eye is completed. One eye takes about 2 minutes, and the actual operation process in the middle takes about 30 seconds, mainly waiting, placing instruments, washing with drugs, etc.

After coming out, I sat in the corridor at the entrance of the operating room, dropped six rounds of eye drops and went out. Eye drops have a slight tingling sensation, which should be that antibiotics have certain irritation to the wound. At this time, the eyes are still foggy because there is a potion in the wound.

The first feeling after coming out is that the words in the distance are clearly seen, and my head is a little dizzy but basically not obvious. Out of the operating room, the doctor came to ask me about my illness. At that time, I felt foreign body sensation, eye drops stung and my head was slightly dizzy, but it was much better than wearing glasses. I feel that the ground is basically flat and the depth estimation is inaccurate. Things in the distance can focus normally, not afraid of light, and things are slightly dazzling. On the whole, I feel much better than I expected, and I am very happy. The doctor told me that what I said before was the worst case, which is rare. He said it would take a week to look at things nearby slowly, and it would take about three months to get dizzy. When the corneal flap grows completely, it will slowly disappear.

Postoperative effect

April 30th: Visual acuity was measured immediately after operation, with eyes 1.2. Strabismus was improved, exotropia and downward strabismus were reduced by half. The doctor said it would gradually disappear after 3-6 months. After a few drops of eye drops, I went back to the hotel happily. The eye drops hurt a little that night.

May 1: I went for a reexamination in the morning, and my eyes 1.2+. The doctor said that the wound had healed well, and the tingling of eye drops disappeared that morning. I arrived in Shenzhen that afternoon and arrived home 24 hours after operation, and the foreign body sensation in my eyes disappeared. The doctor said that this shows that the wound has basically healed. I feel a little dizzy when I see things.

May 5: I won't feel dizzy when I look at things, and the depth estimation is very accurate. I can't recall the feeling of myopia before the operation. I still feel dry when I wake up in the middle of the night a few days before the operation, but the dryness is slowly improving. My eyes are tired. I want to sleep after 10 at night. The muscles around my eyes feel cramps at night. The doctor said it was caused by the muscle memory in my eyes.

May 9: I went to Guangzhou for reexamination. Eye 1.5. The doctor said that I have recovered very well, and I can wash my face and shampoo normally, but I will pay more attention and try not to get wet. The glare at night is also decreasing recently. Tired eyes have completely disappeared, so you can watch TV, read books and use the computer normally, and you can clearly see things nearby.

May 13: The dry eyes basically disappeared, and I don't need eye drops when I wake up occasionally at night.

July 17: I just passed the second major this morning, and I will take a second interview this afternoon. Only two and a half months. I have used my eyes a little too much recently, and I am a little worried. Results My eyes were 1.5, and my strabismus was greatly improved, only 2 degrees. The doctor said the recovery was good, and there was basically no glare at night. If it goes well, I can drive next month. But when I rechecked, I saw one that looked like a laser excimer. His recovery doesn't seem to be very good, and the wound doesn't seem to grow well. Surgery needs to be cautious.

65438+1October 26th: I got my driver's license last week and went out to drive all afternoon this afternoon. I feel very good. I don't feel dry at all.

Postoperative sensation

I can't comment on the examination at home and the doctor's recommendation for the New Year, but the preoperative examination in Guangzhou and the doctor's explanation are very comprehensive and specific, so I suggest that myopia surgery should go to a big city as much as possible and find a hospital with a large amount of surgery. They have many cases and are more experienced in different situations.

The most expensive is not necessarily the best, you need to choose according to your own situation and follow the doctor's advice. In the words of my former boss, there is no absolute good or bad, only suitable and unsuitable; Personally, you don't have to fly all the time unless you are a boxer/skydiver; The doctor explained to me that if the external force on the eyeball is divided into 10 and 1 ~ 9, it is very safe, and the corneal flap will shift or fall off at 9 ~ 10, and it is very safe in full femtoseconds. Even if the corneal flap shifts or falls off, you can go to the hospital for treatment.

Everyone's situation is different. We must find the most experienced doctor for a comprehensive examination. Many things are different after operation. For example, I usually get dizzy without glasses. People who usually wear glasses should not feel this way. For example, people who are afraid of light are mostly people with large pupil radius, so I am not afraid of light, and retrogression of vision is also an individual phenomenon. Some people say that my eyes are dry, but I feel fine. Just because one person's situation doesn't mean that I will have the same situation.

It is said on the Internet that the corneal flap is easy to shift in half a femtosecond, so I can't rub my eyes. In fact, on the first night of the operation, I subconsciously touched my eyelids, and I woke up in a panic at that time, fearing that something would go wrong. As a result, I told the doctor the next day, and the doctor smiled and said that it was okay, and human organs were not so fragile. One patient went to the hot spring on the third day after operation, one patient went bungee jumping one week after operation, and one patient went diving two weeks after operation, all of which were fine, but for the sake of safety, I tried

As for the secondary correction, trans park is a superficial operation, which can be corrected as long as the corneal thickness is enough, but it can't be corrected in full femtosecond, and the semi-femtosecond secondary correction can't use the thickness of corneal flap, so it is slightly worse than trans park.

About photophobia and glare, my understanding is that corneal thinning after surgery will definitely bring in more light than people who are sensitive to light and have large pupils before, and they will be photophobic. I may not be afraid of light because my pupils are small; When shooting, small aperture (large aperture value) often leads to dazzling photos. I think obvious glare may also be the cause of small pupils; The former is the explanation given by the doctor, and the latter is my guess;

I checked for two days before the operation, because my condition is a bit special for doctors, and most of the others finished the direct operation on the same day.

The hospital I went to can't do lens implantation, and I still feel that it is relatively small, so I can't make any comments here.

During the operation, I learned some knowledge about ophthalmology and deeply felt the advanced and rapid development of medical technology. Therefore, although there are many negative comments on the Internet, I suggest that if you want to have surgery, you should still screen out some information online, believe in science, believe in the professional knowledge of doctors, believe in the results of preoperative examination, and most importantly, use your eyes scientifically anytime and anywhere.

I hope the above is helpful to everyone, and I hope everyone can get good eyesight through surgery. I am a non-medical major. Please correct me if there is any unreasonable description.