Is it good to have femtosecond laser myopia surgery?

Safety,"The commonly used laser surgery at this stage is superficial surgery, which only makes a fuss on the cornea. The myopia lens is a concave lens, and the procedure is to grind the middle of the cornea, which is equivalent to making a lens on the cornea. Zhai Changbin said, "Comparing the eyeball to a basketball, surgery is equivalent to scraping on the surface, and it has no effect on the ball."

Since it is only a "superficial article" and does not touch the deeper tissues, it has no effect on fundus diseases, lens lesions, etc., and will not increase the incidence of these eye diseases.

For every 100 degrees of myopia reduction in ReLEx surgery, the cornea only needs to be thinned by 12 microns. The corneal thickness of a normal person is generally between 500 and 550 microns, and it can still be guaranteed to be within a safe range after surgery. If the cornea is too thin to be suitable for laser myopia surgery, lens implantation surgery (ICL surgery) may also be considered.

ICL surgery is generally suitable for patients with thin corneas, abnormal corneal morphology, or myopia higher than 1200.

Femtosecond laser myopia surgery is very effective in myopia, and femtosecond laser surgery is also relatively advanced. Compared with excimer surgery, femtosecond laser surgery has a wider range, and it is necessary to go through a strict examination before surgery, and if all aspects are more eligible, femtosecond laser myopia surgery can be performed. The whole process is operated without a knife, and it is all laser operated, so it is safer and more convenient.

It is recommended to go to a professional eye hospital for examination and surgery under the guidance of a doctor**.

Advantages of full femtosecond:

1.Small amplitude, no corneal flap, avoid corneal flap-related complications, and rapid reduction recovery;

2.The corneal defect is maintained to the greatest extent, antagonistic movements can be tolerated, and long-term vision is stable;

3 。Intraoperative negative pressure blood pressure, high comfort, and safe operation;

4.Complications such as corneal dryness are mild;

5.It is suitable for patients with small eyelids and has a wider range of indications.

Finally, it is recommended that you go to the hospital for examination and choose the right surgery method for you.

Only what suits you is the best. This surgery has been very mature for 30 years in China, and on average, hundreds of thousands of myopia patients have successfully removed their glasses through surgery every year, as long as it is determined that it is suitable for surgery through strict preoperative examination, the operation itself is very safe.

Compared with other surgical methods, the advantages of ReLEx are more significant

1. Minimally invasive, 90% of the nerves on the surface of the cornea are intact;

2. There is no valve, there is no possibility of corneal flap displacement after surgery, and the safety is higher;

3. The operation is completed in one step, and the intraoperative comfort is higher;

4. The principle of lens removal, better accuracy;

5. Maintain the corneal tissue to the greatest extent, and the postoperative effect is more stable;

6. The biomechanical stability of the cornea is better, which greatly reduces the occurrence of dry eye syndrome and complications.

1. Pay attention to the time you spend with your eyes.

Children's eye development is not perfect, the ability to work is low, every time you read or write for an hour, you should let the child go to outdoor activities, do games, look into the distance, or observe the flowers and trees, so that the tense eye muscles are relaxed, eliminate fatigue. In addition, it is necessary to make the child's life regular, have enough sleep, and let the eyes get enough rest.

2. Pay attention to the light of your eyes.

Do not allow your child to read or write in dark light or sunlight. If a 25-watt light bulb is used indoors at night, the distance between the book and the bulb should be within 1 meter. If you use a 60-watt bulb on a stool, the distance between the book and the bulb should be 1 2 meters.

Cloudy days, dusk, weak light in the moonlight, and strong light in the sun are not suitable for reading and writing. When watching TV, it is necessary to maintain a suitable distance, which should generally be 5 7 times the diagonal length of the phosphor screen. The time to watch TV should not exceed 2 hours at a time.

3. Pay attention to eye exercise.

Physical exercise can enhance blood circulation and metabolism, supply more nutrients to the eyes, and enhance the resistance of the eyes, which is an indirect exercise for the eyes. The direct exercise is eye exercises, which is based on the massage, massage, acupuncture and acupuncture acupuncture points of Chinese medicine, combined with jujube Kuanhui medical sports, which is a scientific method to protect eyesight. Parents should learn the basic knowledge of eye exercises, give specific guidance and often urge their children to do eye exercises, and persevere.

4. Pay attention to eye nutrition.

In order to protect children's eyes, children can eat more carrots, animal liver, lean meat, to supplement vitamin A, or regularly supplement the comprehensive nutrition of the eyes with Leyan vision nutrients, and at the same time, it is also necessary to appropriately consume millet, tofu, animal liver and other supplements of vitamin B2, so as to avoid night blindness, corneal malacia, red eyes, dry itching and other symptoms. Eating too much sugar will harm your child's eyesight, so your child's sugar intake should be controlled.

5. Pay attention to regular inspections.

Regular check-ups are due to the fact that children's eye structure, binocular visual function, and intelligence are still in the process of continuous development after birth, and the content of the examination is different at different ages. The usual age of ophthalmologic examination is generally 2-7 days after birth, 42 days after birth, 3 months, 6 months, and 1 year of age, and then once a year. In this way, the problem can be detected early and corrected early, instead of waiting until the vision has deteriorated and there is a vision problem before going for a check-up.

Compared with the previous femtosecond, femtosecond, as the name suggests, it refers to refractive surgery that is operated entirely with femtosecond lasers, and the surgical process does not require the participation of excimer lasers.

The principle of surgery is to use a femtosecond laser to make a lens in the corneal stromal layer, and then use a femtosecond laser to make a 2-4mm tiny incision at the edge of the cornea, through which the lens is removed, and the refractive power is accurately reshaped, and the surgical process is in place in one step, which is currently the most advanced myopia surgery method in the world.

Femtosecond laser surgery has a good effect on myopia, the whole process is laser, no knife operation, and it will go through strict examination before surgery, so it is safer and more convenient. If all aspects of the condition meet the requirements, it is recommended to go to a regular eye hospital for femtosecond laser surgery**.

Instead of making a corneal flap first, the machine performs two laser scans of different depths directly on the corneal stromal layer to form a complete lens-shaped corneal tissue. The surgeon then uses instruments to separate the lens in the corneal stromal layer, and then removes the corneal tissue of the lens, and the operation is complete.

ReLEx surgery requires myopia and astigmatism, which not everyone can do. Compared with half femtosecond, with the same power, in different ways, full femtosecond requires more corneal tissue. At present, ReLEx does not allow for personalized surgery.

Because there is no corneal flap, the incision is only 2 mm, which is higher in terms of safety.

ReLEx laser is one of the most advanced corneal refractive surgery modes in the world, which has brought the safety and accuracy of myopia correction to a new level.

It may be due to long-term fatigue, staying up late, overusing the eyes, and lack of outdoor exercise that lead to the elongation of the eye axis, which leads to myopia. It is recommended that if the degree is stable for more than two years, in good health, and has special needs, you must first go to the hospital for ophthalmology examination, and if you are qualified, you can consider surgery. But it just changes the diopter.

At present, 10 surgical methods are carried out, including two series of excimer and all-laser femtosecond, ranging from 3,800 yuan to 14,800 yuan, and the preferential range is now ranging from 1,000 yuan to 3,000 yuan. If it's full femtosecond, it will be slightly more expensive.

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.

As long as you pass a strict preoperative examination, you can ensure the success rate of the surgery. Hefei Preh.

Several patients have had 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. I looked through the American Journal of Ophthalmology, and their survey statistics showed that patients were very satisfied with myopia eye surgery, so myopia eye surgery satisfaction was 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.

This is not currently happening in patients blinded by myopic eye surgery.

There is no need to worry about the after-effects of surgery.

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.

Generally speaking, if you are over 18 years old and have stable vision, your postoperative vision will not be **. Because from the perspective of surgical principle, laser myopia surgery is based on the myopia degree you need to correct, under the premise of ensuring sufficient safety, the cornea of the corresponding thickness will be cut off, and the cornea will not grow out after surgery, so the corrected degree will not be **.

ReLEx laser surgery requires a detailed preoperative examination before it can be determined. Through the examination, it is possible to estimate the postoperative visual acuity, and check whether there may be complications, sequelae, myopia regression and other possibilities after the operation. If the test results are suitable for surgery, then you can accept it with confidence**.

The contraindications to ReLEx laser myopia surgery are as follows, and it is recommended to consult a local ophthalmologist for specific conditions

1. Exclude active ocular disease: there can be no systemic diseases, such as diabetes mellitus and immunosuppression, and surgery is not recommended for these patients.

2. The expectation of surgery is too high: the operation should be cautious, and the age should not be too young, generally required to be over 18 years old, and the refractive state should be stable in the past two years, that is, the annual degree change can be within 50 degrees.

3. There are requirements for the degree of prescription: different laser surgeries require different degrees of myopia, lamellar corneal surgery generally cannot exceed 1200 degrees, femtosecond laser surgery cannot exceed 1000 degrees, and superficial surgery generally does not exceed 800 degrees.

4. There are requirements for the thickness of the cornea: after the cornea is removed, the thickness of the remaining corneal stromal layer should be at least 250mm, and it is recommended to be more than 280mm.

5. Pupil diameter: For example, the value in dark light and low light, if the pupil diameter is too large, it may cause astigmatism after surgery, resulting in poor night vision. As the Jinan Branch of Huaxia Eye Hospital, under the leadership of Director Wang Lihua, it has strictly abided by the criteria of precise technology and safe surgery for many years, and has made continuous progress to strive to do a good job in all eye surgeries.

In order to achieve a certain level of safety in myopia eye surgery, it is necessary to check the indicators of the eye, including visual acuity, refraction, fundus (dilated pupil), intraocular pressure, computerized optometry, corneal topography, corneal thickness and other corresponding examinations necessary for surgery. If the cornea is not thick enough and the prescription is relatively high, it is not safe to perform surgery in this case. In addition, if the cornea has corneal curvature, it is not suitable for surgery.

Want to have myopia surgery for fear of sequelae? That's because you didn't choose the right eye hospital and doctor. It is recommended to choose Huashi Ophthalmology, which has experts from public hospitals, advanced equipment, cost-effective surgery, and one-to-one VIP services, so that you have no worries.

"Full femtosecond"The surgery is not suitable for people.

1. Myopia degree of more than 1000: The myopia correction surgery of ReLEx requires the patient's myopia degree to be within 1000 degrees, and the degree of astigmatism for patients is less than 500 degrees. Patients with myopia above 900 degrees are temporarily not suitable for ReLEx surgery.

2. The corneal thickness is less than 450 m: ReLEx myopia correction surgery uses femtosecond laser to make a corneal stromal lens of corresponding thickness and a tiny corneal incision, and the made lens is removed through the corneal incision, so there are certain requirements for corneal thickness.

3. Patients with active eye disease: For patients with blepharitis, acute stye, conjunctivitis, dacryocystitis, corneal ulcer, keratitis and other eye diseases, they should be cured before the ReLEx surgery, and the surgery can only be considered after the condition is controlled.

4. Patients with contraindications to systemic surgery: ReLEx myopia correction surgery has very strict requirements for myopia patients in all aspects, in addition to the above three points, they must not suffer from autoimmune diseases, such as diabetes and other diseases, because these diseases will affect the healing of surgical wounds; Patients with scarring constitution are also not eligible for ReLEx surgery.

In addition, for patients with eye diseases such as keratoconus, glaucoma, corneal endothelial degeneration, etc., myopia correction surgery is also not allowed.

Regarding the indications of femtosecond lasers, there are two points to pay attention to. The first degree, such as ultra-high myopia of more than 2000, is difficult to do a full femtosecond laser. The thickness of the cornea determines how much this power can do.

For example, if you have 1000 degrees of myopia, if the corneal thickness is less than 450 microns, you can't do it.

Both of these factors are taken into account for femtosecond laser surgery, one is the thickness of the cornea and the other is the power. In the case of a normal corneal thickness, such as 550 microns, 1000 or even 2000 degrees will suffice. Femtosecond laser is a very mature surgery with modern technology, so it is very safe and effective for both the highest, medium, and low degrees.

As long as the corneal thickness can be guaranteed within a certain range, this problem can be solved.