LASIK surgery adapts to the crowd

1 Patients need to take off their glasses:

Not suitable for wearing frame glasses and contact lenses.

Because of some kind of eye disease, surgery is necessary.

Professional requirements can not wear frame glasses, and it is not suitable for wearing contact lenses.

Based on the effect of beauty.

Need to join the army and take part in special occupational physical examination.

People who like sports and often take part in intense activities such as field work should not wear glasses.

2. 18 weeks old or older;

The diopter is stable in the past two years, and the development speed does not exceed 0.50 d per year;

4 corrected diopter range (myopia 150-3000 degrees; Hyperopia 100- 1000 degrees; Astigmatism does not exceed 600 degrees);

5 anisometropia with different diopters in both eyes;

6. Wear contact lenses (soft lenses should be stopped 1-2 weeks, hard lenses should be stopped for 2-3 weeks. Note: it depends on the shape and thickness of the viewing angle film and the recovery of corneal epithelium);

7. Corneal thickness is greater than 450μ m;

8. No active eye disease after eye examination.

LASIK surgery is not suitable for people;

1 Patients with active inflammatory eye diseases (such as acute conjunctivitis, blepharitis, keratitis, corneal ulcer, dacryocystitis, iridocyclitis, etc.). );

2. Suffering from keratoconus, glaucoma, rabbit eye, dry eye, corneal endothelial degeneration and other ophthalmic diseases;

3. Those who have suffered from fundus hemorrhage and retinal detachment (depending on the current situation);

4 correct severe amblyopia with poor eyesight;

5. Those with high myopia, too large pupil and too thin cornea;

⑥ Patients with scar constitution, diabetes, autoimmune diseases and other diseases that affect corneal wound healing;

7 those who have extremely high requirements for vision and great concerns about surgical thinking;

8. People with mental illness and taking medicine.

Not all of the above contraindications are absolute contraindications. In some cases, after treatment and close observation, the operation can be performed cautiously, but it must be carried out with the consent and signature of the subject.

Are you suitable for surgery?

Can be considered from the following two aspects.

First of all, it is psychological: first of all, you should take off your glasses yourself, and it is best to discuss it with your family. Secondly, you should not expect too much from the psychological effect of the operation. In daily life, 0.5-0.9 vision does not need to wear glasses, so this vision level is listed as the standard for basic lens removal after surgery. The postoperative visual acuity 1.0 reached the standard of complete lens removal, which was very satisfactory. Of course, some patients have achieved the best results. The degree of postoperative recovery varies from person to person.

Second, the physiological aspect: after you decide to have surgery, you must go to a regular laser myopia treatment center and ask a doctor to do a comprehensive eye examination for you. Including: external eye examination slit lamp and mydriatic fundus examination far and near naked eye vision and corrected vision examination, non-mydriatic computer optometry and mydriatic optometry, corneal refractive power and radius of curvature, intraocular pressure and scleral hardness coefficient, corneal thickness measurement, axial measurement and corneal topography. After careful instrument examination, we can know whether you are suitable for surgical treatment.

1. Preoperative examination

* eyesight

Including naked eye vision and best corrected vision. The best corrected vision for high myopia is often reduced, and eye correction and contact lens correction are different. Patients with high myopia and astigmatism can get satisfactory vision by wearing RGP, so they are not good candidates for surgery.

* Flexibility

For high myopia, careful pupil and mydriatic optometry are necessary. High myopia is often corrected first and then improved. In the case of high myopia, patients can wear disposable contact lenses of -8.00D or -9.00D before optometry.

* Front inspection

Include orbit shape, palpebral fissure width, corneal diameter, corneal neovascularization, etc. Keratoconus is a contraindication for surgery. Endothelial examination is needed to record endothelial changes.

* Examination of the posterior segment of the eye

It is very important to examine the fundus of high myopia patients with mydriasis, and any fundus lesions should be treated before operation. If there is myopia, macular degeneration, grape swelling, etc., it should be recorded.

* Corneal topographic map

For an excessively flat cornea (

2. Patient preparation

* Understand the benefits and risks of surgery in detail, and understand the process of postoperative recovery.

* Stop wearing contact lenses two weeks before surgery.

* Drop anti-inflammatory eye drops (such as chloramphenicol or norfloxacin) three days before operation, one drop each time, four times a day.

Curative effect evaluation

1.Is LASIK safe?

Very safe. More than/kloc-0.0 million people in the world have successfully undergone laser myopia correction surgery. We have also successfully treated nearly tens of thousands of cases in China without any serious accidents. The US Food and Drug Administration (FDA) believes that excimer laser is a safe and effective method to correct myopia, hyperopia and astigmatism. Of course, any operation has certain risks. If you choose experienced doctors and treatment centers with strict quality control, you can minimize the possible risks.

2. Can the postoperative visual acuity reach 1.0?

Although the surgical effect is excellent (generally, more than 95% people take off their glasses after LASIK), your surgical effect depends on your best corrected vision before operation (if it is lower than 1.0), refractive degree, your own response to laser treatment, your own recovery and other factors, so the postoperative effect depends on your specific situation. Only after passing all the tests can the doctor tell you the expected effect.

4. What is the effect of the treatment?

So far, the treatment effect at home and abroad is satisfactory, and most patients have taken off their glasses for severe myopia once and for all (a few people with high myopia still have residual shallow myopia). The naked vision after treatment can generally reach the corrected vision with glasses before treatment.

7. Is the treatment effect stable?

Years of theory and practice have proved that this wonderful laser will not regenerate the flat part of the eyeball, so the treatment effect is very stable. If the degree of myopia has stabilized in recent years before treatment, and the anterior and posterior diameter of the eyeball is no longer longer longer, myopia will not appear again after treatment. According to foreign long-term research reports, the average regression degree of PRK after four years is only 50 degrees, and it will not go back in the future. LASIK has less retrogression and is more suitable for high myopia (myopia above 500 degrees).

8. What are the risks of treatment?

This technology adopts the most advanced equipment in this field in the world at present. The whole process of laser treatment is controlled by computer and has an automatic eye tracking system, which makes the treatment achieve a perfect state of high safety and accuracy, so no serious sequelae have been found so far. Because the wavelength of this excimer laser is very short, which is 193 nm, it can't penetrate the eyes, so there is no reason to have sequelae after several years of treatment.

China Ophthalmic Excimer Laser Refractive Therapy Center.

Jilin province

No.5 Xinmin Street, Changchun Bethune Third Clinical College Myopia Excimer Laser Center

Excimer Laser Correction Center of the Second Clinical College of Bethune Medical University, No.5 Qiangzi Street, Changchun 043 1-89746 18.

Jilin Evergrande International Eye Hospital No.38 Dajing Road Changchun 043 1-8729992

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