Is laser surgery for myopia safe? Is laser surgery for myopia really safe?

There are risks associated with any surgery, and not all people with myopia are suitable for laser vision correction surgery, and the following requirements need to be met

Patients undergoing surgery should have had a stable myopia condition for more than 1 year, and the correction effect is more satisfactory than that of high myopia.

In general, it is best not to be below 18 years old.

Patients with autoimmune diseases such as rheumatoid arthritis, systemic lupus erythematosus, and Sjögren's syndrome are not suitable for myopia laser surgery.

Pregnant and lactating women cannot undergo this procedure.

Corneal thickness measurement is performed before surgery, and normal corneal thickness should be between 490 microns and 650 microns.

The diameter of the pupil should not be too large, otherwise problems such as glare will easily occur after surgery.

Other eye diseases such as infections and glaucoma should be ruled out. In addition, for laser vision correction surgery, it is necessary to go to a regular and credible hospital. Strict preoperative examination, careful surgical design, meticulous surgical operation, and good postoperative care are all indispensable!

Whether myopia eye surgery is safe mainly depends on the preoperative examination, which can ensure the safety of the operation to prevent serious complications after surgery, and can also determine how the surgery should be done, so the preoperative examination is very important, and the patient should strictly grasp the indications.

The safety of myopia surgery is completely depends on our preoperative examination, what is the purpose of our examination, the first can ensure the safety of this operation, in order to prevent some serious corneal complications after this operation, this is one, the second is the purpose of this surgery to do, so we just said that the first aspect, that is, we have been able to do it in the end, so it violates the principle of safety, for example, some patients should not do it, and some patients who should not do it in hospitals. If you don't have a strict grasp of the indications, then this will indeed cause a lot of unsafety. In the world, it is said that there are many shortcomings of these surgeries, so this situation, in fact, is because of what many patients do not have a strict grasp of the indications.

At present, laser surgery is still the only effective way to improve myopia, and excimer laser in situ keratomileusis (LASIK), femtosecond and other procedures can correct vision.

The principle of laser surgery is to reduce the degree of myopia by thinning a small layer of cornea and changing the angle of refraction of light entering the eye.

There are risks associated with any surgery, so it is necessary to do a detailed preoperative examination, and it is relatively safe to do it if it is suitable for the examination.

This may have, if it is not too serious, it is recommended not to have surgery.

The purpose of the examination is to see if you are suitable for surgery to eliminate the risk of surgery, and there are nearly 20 examination items from the ocular surface to the fundus, so as long as the examination is determined to meet the conditions for surgery, safety and results can be guaranteed.

Myopia eye surgery has been carried out in China for more than 20 years, especially laser myopia eye surgery, which has a very high accuracy, and the vast majority of patients have achieved good vision improvement after myopia eye surgery.

The United States is a major country in myopia eye surgery, and the technology is also original in the United States. Survey statistics in the United States show that patients are very satisfied with myopia eye surgery, so the satisfaction with myopia eye surgery is very high. However, you must do a detailed examination before the operation, and cooperate well with the doctor during the operation to avoid complications or sequelae as much as possible, such as poor vision after surgery and decreased visual quality after surgery.

There are no cases of blindness caused by myopic eye surgery.

First of all, it is necessary to consider the nature of the hospital and find a professional ** myopia laser surgery center.

Surgeons should have rich experience, rich experience can ensure that doctors can deal with complex cases and solve emergencies in surgery, professional optometrists can design more suitable for patients through the results of preoperative examinations, while ordinary ophthalmologists can not accurately analyze the results of preoperative examinations.

Strict preoperative examination and preoperative design are very necessary; Whether the preoperative examination is accurate and whether the design is reasonable is an important guarantee for the surgical effect. In order to achieve accurate preoperative examination, it is necessary to rely on an optometrist with rich experience and professional knowledge to do the examination, and it is necessary to fully consider various factors such as the dominant eye, distance and near refraction, and binocular vision balance during the examination. After a series of accurate preoperative examinations and individualized preoperative design, the safety and effectiveness of the operation can be guaranteed.

With state-of-the-art equipment and strict quality control, the hospital you choose must have the world's most advanced excimer laser** equipment, as well as a full set of preoperative examination equipment. The eyes are precious and delicate, and they must not be sloppy. Strict quality control is an important factor to reduce the risk of surgery and improve the effectiveness of surgery.

Myopia surgery has been developed for 20 years, and the technology is very mature, and it is relatively safe. But because it is a surgery after all, it is a risk, and this cannot be completely avoided at present.

The common drawbacks in general are:

1. The corneal flap is off-center, the corneal flap is not in good alignment, the corneal flap is folded, and the corneal interlaminar debris or blood remains.

2. The laser cutting is off-center, and the corneal knife cuts through the cornea.

3. Postoperative lifelong glare and dazzling: myopia is more common in height, and there is halo when looking at things.

4. Under-correction or over-correction: This situation will require re-operation, and it is not ideal after re-operation.

5. Vision**: Especially for people with high myopia, vision begins to decline a few years after surgery.

6. Best-corrected visual acuity decline: After surgery, it is not possible to achieve the visual acuity that can be achieved with glasses.

7. Dyslexia, dry eyes, decreased corneal sensitivity, pain.

8. Irregular astigmatism: Almost all people who have myopia surgery have varying degrees of irregular astigmatism after surgery.

9. Corneal infection, diffuse interlamellar keratitis, formation of corneal insula.

10. Degeneration or scarring of the corneal periphery, corneal center pigmentation.

Although myopia surgery has been developed for 20 years and the technology is very mature, because it is a surgery after all, the current postoperative effects cannot be completely eliminated, so surgery is generally not recommended.

The best way to avoid surgery is to detect myopia in time**. Expert advice: In the early stage of myopia, as long as the bad eye habits are corrected in time, and combined with oral eye vision nutrients, it can be well controlled or improved for a period of time, and it can be done without adult surgery.

Many myopic friends who don't know about laser myopia surgery often worry: Will the laser cause blindness?! Is myopia surgery safe?

Myopia laser surgery is very safe, all laser pulse energy is very low, and the cutting of corneal tissue is also measured in microns, which will not penetrate the cornea, let alone damage the fundus and cause blindness.

Myopia surgery is now very mature. As long as there is no problem with the preoperative examination, there is no problem with the surgery

Myopia laser is a popular point is to put glasses into the eye, that is, the outermost layer of the eye called the cornea is polished and thinned into a certain curvature, just like wearing glasses, after the external light is refracted in, it can just be projected onto the retina, and the thickened lens has not changed. Now that surgery is gradually maturing, complications are generally rare, and attention should be paid to protecting the eyes after surgery.

What are the dangers of laser surgery for myopic eyes, listen to the children who have learned.

Hello, myopia surgery itself is safe. The surgery is done on the surface of the cornea, and does not involve intraocular structures such as lenses and retina, causing injury. Or internal and external aviation, troops, military and police academies are recognized through myopia laser surgery correction to obtain qualified vision, as long as through strict preoperative examination, suitable for surgery, safety is no problem.

Laser surgery is a very minimally invasive operation, usually only a very small part of the cornea is cut off, and the postoperative vision and eye comfort are very good, so laser surgery is a very safe operation. However, it should be noted that not everyone is suitable for laser surgery, so it is necessary to conduct a professional and detailed examination before surgery to determine whether you are suitable for surgery.

There is a certain proportion of myopia surgery that does not achieve the expected goal of the surgery, such as the visual acuity after correction, which may only be achieved or lower. Another condition is overcorrection. There are still errors in machine lasers, which vary from person to person. Surgery with caution!

Femtosecond laser is a kind of laser in the form of pulses, the duration is very short, only a few femtoseconds, 1 femtosecond is 1 quadrillion of 1 second, it is thousands of times shorter than the shortest pulse obtained by electronic methods, effective **myopia, is the shortest pulse that human beings can obtain under experimental conditions. In order to make the eye recover well after surgery, it is not advisable to undergo surgery when the work is busy, and it is recommended to agree with the doctor on the date of surgery according to the specific situation of your work and life.

Laser surgery is done by cutting a certain thickness of cornea, so the higher the myopia, the more cornea is cut, and the lower the safety of the surgery.

In general, myopia laser surgery is quite mature in China, but there are still some patients who will have postoperative vision regression, which is often caused by the surgeon's own reasons such as poor eye habits or other reasons, which is not necessarily the unsuccessful operation; As for the phenomenon of dry eyes, it is because the surgery itself is an injury, and some people are more sensitive to it. Many ophthalmologists do not do laser surgery for myopia themselves, and there are indeed safety considerations. Because myopia surgery to thin the cornea, just like the walls of the house at home, there is usually no problem, but the degree of safety is bound to decrease, after all, this surgery, like any other surgery, has risks and cannot be 100% successful.

Personally, I think that the first choice for children with myopia is Changsha Liangjingjing Vision Center, pure physics, safe and non-convenient!

First, refractive surgery is a corneal surface surgery, which will not directly lead to lesions and sequelae of other eye tissues.

Second, a detailed preoperative examination will be done before the operation to ensure that the eye meets the surgical requirements, and the doctor will operate on the patient;

Third, as long as the doctor's instructions are strictly implemented throughout the operation, there will be no rumors on the Internet about myopia surgery causing cataracts, retinal detachment, blindness, eye inflammation and infection, etc.;

Fourth, if refractive surgery does lead to serious complications and sequelae, will the state allow the procedure to develop so quickly?

Clause. 5. The laser used in the surgery is to scan the cornea accurately without harming the internal tissues of the eyeball. Excimer lasers are cold lasers that precisely ablate the portion of the cornea that is expected to be removed without damaging the surrounding tissues and other tissues. The wavelength of the excimer laser is very short and only 193nm, so it cannot penetrate the eye at all, so there is no harm to the internal tissues of the eye***.

There is also no reason for the recurrence of sequelae after a few years.

There are two options.

Myopia eye surgery rarely has serious complications. Generally speaking, the most common may be inconsistencies in refractive power, and relatively large myopia, farsightedness or astigmatism remain after surgery. If these phenomena occur, after a careful examination, the surgery can be performed again, and if you do not want to have surgery, you can wear glasses, which is allowed, and there is no special problem.

Myopia eye surgery is a highly automated, computer-controlled surgery performed only on the cornea on the surface of the eye, which has no effect on the tissues in the eye, and therefore has a high level of safety.

No, the current femtosecond laser surgery has gotten rid of the era of surgical knives, and the whole process of laser fixed-point positioning, as long as the doctor's skills are not up to standard, there will be no problems.

Laser surgery is not available to everyone, and there is a very complete and strict preoperative examination system before the operation, and if there is a non-compliance, the operation will be rejected, so the operation is carried out on a safe basis. Generally, regular and professional eye hospitals will do a detailed examination before you perform surgery, and then recommend surgery for you according to your situation. If you do not meet the requirements of the operation, the hospital will not give you the operation, because the hospital is the one who wants to see the operation successful and the least willing to see the patient have an accident except yourself.

At present, there are two main types of myopia surgery: one is corneal refractive surgery, which is what we usually call myopia laser surgery; **Four or five thousand to one or two hundred thousand, the other is lens refractive surgery, including lens posterior chamber intraocular lens implantation surgery (i.e., ICL implantation) and clear lens replacement surgery** is generally more than 30,000.

Only after the preoperative examination will you know which surgical options you can choose. Only what suits you is the best, not the more expensive the better.