What are the contraindications for laser treatment of myopia? Is it credible? What do I need to do b

The people around me who have had laser surgery have good eyesight. However, after surgery, you can't do anything that puts a lot of pressure on your eyes, such as jumping on a step.

Myopia laser surgery is an operation performed on the surface of the cornea, which does not touch the inner eye and does not change the structure of the eye, and the excimer laser is ultraviolet light with a very short wavelength, which has a photochemical effect with biological tissues, does not produce heat energy, does not cause thermal damage, and does not scorch the cornea, which is very safe and does not have the best problem.

Preoperative attention: Stop wearing contact lenses for two weeks, and use prophylactic anti-inflammatory eye drops 3 days before surgery.

Postoperative notes: 1. Do not swim within one month.

2. Do not wear makeup to the eyes within a week, and do not rub the eyes vigorously.

3 Be careful when washing your hair and bathing within a week, do not let water and soap get into your eyes4, do not drive a car if your vision is not clear.

5. Use eye drops according to the doctor's instructions.

6. Follow the instructions for regular follow-up.

This surgery is available at any time regardless of the season. Laser myopia surgery must go through a strict examination before surgery, and if the examination results are all in line with the surgical conditions, then the surgery can be performed.

This surgery is now very mature, and the conditions for choosing a good hospital are: experienced professional physicians; Advanced and reliable professional equipment; Complete and reliable health education consultation; Careful and correct surgical evaluation; A dust-free, sterile surgical space dedicated to ophthalmology.

The advantages of laser surgery for myopic eyes are obvious, it can effectively improve corrected vision and achieve the purpose of removing glasses, so it is very popular among teenagers. The disadvantage is that it is invasive, and it may bring rare complications, such as common overcorrection, undercorrection, refractive regression, dry eye, infectious keratitis, corneal interlaminar debris, etc. Although the probability of these complications is very small, once they occur, they will also bring greater trouble to the patient and may affect the vision.

Surgery as a reference means, must be carefully considered before surgery, if there is fear or expectations for surgery is particularly high, surgery is still not recommended**, wearing glasses or contact lenses can also be a good way to improve vision.

Advantages of laser myopia: The effect is ideal for patients with low and medium refractive errors, the myopia rate is low, and you can temporarily do not need to wear glasses for a period of time through surgery. The current problems and drawbacks of laser ** myopia are also obvious:

Because this surgery has not been available for a long time, ophthalmologists have not yet been able to count and determine its long-term effect; Some patients order eye drops for a long time after surgery, otherwise their eyes will be dry and uncomfortable, and some even require eye drops for a lifetime. In addition, the following complications are prone to occur during and after the operation: 1. The corneal flap is off-center, the corneal flap is misaligned, the corneal flap is wrinkled, 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 glare:

Myopia is more common in height, and there is a halo when looking at things; 4. Under-correction or over-correction: In this case, another operation will be required, and the effect after the reoperation is not very ideal; 5. Visual acuity**: especially for patients with high myopia, vision begins to decline a few years after surgery; 6. Best-corrected visual acuity loss

Unable to achieve the same vision as possible with glasses after surgery; 7. Dyslexia, dry eye, decreased corneal sensitivity, pain; 8. Irregular astigmatism: almost all patients 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. For all these reasons, most doctors are reluctant to perform laser surgery on people with myopia. Regardless of the percentage of the incidence of the above sequelae, any one of the many complications that falls on a patient who undergoes this surgery will be a lifelong regret and unhappiness.

Because we only have one pair of eyes, light is priceless. What's more dangerous is that according to strict medical regulations, a corneal knife can only be used in one eye, however, nowadays, in some hospitals or myopia** centers, in order to obtain high profits, a corneal knife is reused, just like it is often reported that dialysis tubing in hospitals are reused. Therefore, before doing this surgery, do not listen to the one-sided words of one party alone, and be sure to think carefully and weigh it repeatedly.

On the other hand, this surgery is expensive and costs thousands of dollars, so it is hoped that the majority of patients with refractive error should carefully weigh the pros and cons and think twice.

If you want to have myopia surgery, first of all, your prescription needs to be stabilized, you are over 18 years old to 45 years old, I think it is okay to have surgery, and you will go to work normally the next day after surgery, there is no impact at all, if you want to do surgery, you can have a comprehensive examination in the local eye hospital to see if you are suitable for surgery.

1.Keratoconus, corneal ectasia disease. 2.

Autoimmune diseases: These people are prone to corneal lysis and corneal removal is not recommended. 3.

Systemic diseases or some metabolic diseases, such as severe hyperthyroidism or hyperthyroidism, the cornea is severely exposed, and surgery is likely to increase the likelihood of corneal lesions. 4.Active ocular lesions, such as intraocular infections, corneal infections, etc., are contraindicated during infection or inflammation.

5.Patients with poor fundus function, or cataracts, glaucoma, etc., which seriously affect vision.

Contraindications to myopic eye surgery are:

1. Patients under the age of 18 (except for special circumstances), or those over 45 years old;

This is because myopia under the age of 18 is still in the stage of vision development. Myopia can be treated with medication**. It is generally recommended to take two packs of Joy Vision Nutrients a day, and insist on taking it for a period of time, the degree of myopia will be reduced, the vision will be improved, and there is no need for adult surgery.

2. The diopter power has been unstable in the past two years, and the annual degree progress is greater than 100 degrees;

3. The corneal thickness is less than 450 m;

4. Patients with acute keratoconjunctivitis, corneal ulcer and other active inflammatory lesions in the eye;

5. Those with eye diseases such as keratoconus, glaucoma, rabbit eye, severe dry eye and severe fundus lesions;

6. Patients with systemic diseases such as scar constitution, diabetes, collagen disease, etc.;

7. Pregnant women; 8. Patients with severe amblyopia with very poor corrected vision;

9. Those who have very high requirements for vision and have great concerns about surgery;

10. Those who have mental illness and are taking medication.

Indications for laser myopia surgery:

1. Myopia has the requirement to remove glasses or correct myopia;

2. Those who must be 18 years old and above;

3. The recent refractive state (myopia, farsightedness, astigmatism) is relatively stable, and the annual fluctuation range is within 50 degrees;

4. Patients with refractive errors with incomparable diopters in both eyes;

5. For those who wear contact lenses, stop wearing them for one week before surgery and stop wearing them for 2 to 3 weeks before surgery; 6. Patients with no active eye disease through eye examination;

7. The thickness of the cornea is greater than 450 m (degree, curvature);

Contraindications to laser myopia surgery:

1. Patients under the age of 18 (except for special circumstances), or those over 45 years old;

2. The diopter power has been unstable in the past two years, and the annual power progress is greater than 100 degrees;

3. The corneal thickness is less than 450 m;

4. Patients with acute keratoconjunctivitis, corneal ulcer and other active inflammatory lesions in the eye;

5. Those with eye diseases such as keratoconus, glaucoma, rabbit eye, severe dry eye and severe fundus lesions;

6. Patients with systemic diseases such as scar constitution, diabetes, collagen disease, etc.;

7. Pregnant women; 8. Patients with severe amblyopia with very poor corrected vision;

9. Those who have very high requirements for vision and have great concerns about surgery;

10. Those who have mental illness and are taking medication.

In other words, laser surgery can be said to be corneal thinning surgery. When you are younger, lasers may not be anything. But after the age of 35, I burst into tears when I saw the sun.

Possibly, it will**.

To say that *** generally occurs after surgery without reasonable eye protection.

Relevant experts believe that if you can not do what you can do with laser myopia, try not to do it, and don't do it temporarily. In order to ensure safety and effectiveness, excimer laser** myopia requires the patient to have a stable preoperative refractive state and correct visual acuity. According to this, the best age to undergo surgery should be between 25 and 35 years old, adolescents under the age of 18 are in the growth period of the body, the refractive power of the eyes is unstable, if blindly undergo surgery, the vision is very likely to regress after one or two years, seriously affecting the expected curative effect, and the success will fail.

In addition, the excimer laser ** myopia was first applied in clinical practice by American doctors in 1985, and has developed rapidly in recent years, and was introduced into China in the early nineties, and it is only a short 21 years of technology from clinical application to now, and it takes a long time to observe whether there are sequelae.

As for Kunming, Yunnan, **** is doing better, this benevolent man sees the wisdom of the wise. I think the Red Cross Ophthalmology and Kunming Preh Ophthalmology are better. One is an established public hospital, and the other is a national chain of professional ophthalmology hospitals.