Is laser treatment myopia good?

Abstract: is it good to treat myopia with laser? At present, in order to cope with the physical examination, many middle school graduates are admitted to the ideal colleges and universities, and go to the hospital to use laser to treat myopia before the physical examination. But experts believe that laser treatment of myopia can not do, try not to do, must do not temporarily “cramming”. Does

laser treat myopia? At present, in order to cope with the physical examination, many middle school graduates are admitted to the ideal colleges and universities, and go to the hospital to use laser to treat myopia before the physical examination. But experts believe that laser treatment of myopia can not do, try not to do, must do not temporarily “cramming”.

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have been more and more accepted by the majority of myopia patients since the emergence of laser treatment of myopia. But experts believe that at present, the safest thing for myopia is to wear glasses. If myopia has no significant impact on it, it is best not to do laser surgery, because laser therapy is surgery after all, and there are certain risks as long as it is surgery. Moreover, laser treatment of myopia is a new thing. Although no complications have been found so far, it is difficult to say how the situation will be decades later.

experts believe that it is not advisable for middle school students to temporarily cram for the treatment of myopia, because middle school graduates are now in a tense learning state, and a series of examinations such as mydriasis optometry before surgery will delay learning. Moreover, for those with high myopia (above 600 degrees), there must be a certain recovery period after surgery, The deeper the degree, the longer the recovery period. During the recovery period, the eyes can’t see, which will further affect learning. Students who have to do laser treatment for myopia can be treated in advance during the winter and summer vacation. Is it safe for laser to treat myopia excimer laser to treat myopia was first applied in clinical practice by American doctors in 1985. It has developed rapidly in recent years and was introduced into China in the early 1990s. The effect of excimer laser in the treatment of high, medium and low myopia is far better than the previous refractive surgery. Therefore, it has attracted the attention of ophthalmologists all over the world.

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, but many people still doubt it for fear that their eyes will be pierced and burned. Generally speaking, excimer laser is ultraviolet light with very short wavelength. It has photochemical effect rather than thermal effect with biological tissue. Therefore, it will not produce thermal damage, let alone charring. In addition, some people worry that they will pierce the eyeball. This worry is superfluous. The excimer laser wave is long and the penetration is weak. Each pulse can only cut a depth of 0.25um. It is horizontal cutting under the cell. The cutting is extremely accurate. Therefore, it is impossible to pierce the eyeball. Some people worry that they will hurt other parts of the eye, which is also a worry, because excimer lasers have infrared tracking system. When your eye deflection exceeds the normal range, the laser will automatically stop shooting to ensure safe treatment. The principle of

laser in the treatment of myopia is that myopia is caused by the long anterior posterior diameter of the eyeball or the convex anterior surface of the eyeball, and the external light cannot accurately converge on the fundus. Excimer laser corneal refractive therapy technology (PRK and LASIK Technology) uses the beam of excimer laser accurately controlled by computer to flatten the anterior surface of the eyeball slightly, so that the external light can accurately converge and image in the fundus, so as to achieve the purpose of correcting myopia. Excimer laser is an invisible ultraviolet beam generated by the excitation of fluorine argon gas mixing. It is a cold laser. It can accurately ablate the part of human cornea that is expected to be removed without damaging surrounding tissues and other tissues and organs.