2. Age 18 -50 years old,

3. No other eye diseases, and the change of myopia and astigmatism within one year does not exceed 50 degrees.

Your current degree is operational. Due to individual differences, everyone's postoperative vision recovery is different. Generally, the postoperative vision can reach the vision corrected by wearing glasses before treatment, which may be better. Years of theory and practice have proved that if the myopia degree is relatively stable before treatment and the anterior and posterior diameter of the eyeball no longer becomes longer, myopia will not appear again after treatment. This kind of laser makes the flat part of the eyeball not regenerate and become convex, so the treatment effect is stable and lasting.

Two commonly used surgical methods, 1, LASEK: excimer laser subepithelial keratomileusis and LASIK: excimer laser in situ keratomileusis, generally cost 5000-6000 yuan.

Excimer laser has a short wavelength of 193nm (nanometer) and cannot penetrate the eye, so it has no adverse side effects on the internal tissues of the eyeball.

There is a strict examination before the operation. If the test results meet the requirements of the operation, then it can be done.