What did not learn from messagesnetwork friendly visitors; and it is harmful and painful, and during the correction of the corneal layer is removed, and the problem does not correct the underlying and blindfolded have to walk for several months, and laser correction can not be done nulliparous women, and vision and then falls again .. . The horror, the horror. I want to close my eyes and exhaled, said: "No-it, I cut my eyes will not give better so alike!"
Cutting the eyes! Where did this come from ?! And who came up with horror stories about bandages, the lack of statistics on laser correction and other errors? This question is difficult to answer, but in order to once and for all to establish the truth, turn to the irrefutable source: the question of history.
So, the first method of vision correction called"Radial keratotomy" appeared in the 30s. of the last century. Its essence consists in the fact that the cornea of the eye incision applied (on the periphery of the pupil of the cornea), which are subsequently fused.
As a result, it changed the shape of the cornea andIt improves eyesight. However, the first vision correction surgery accompanied by a number of serious complications (one of them - clouding of the cornea, leading to blindness).
The accuracy and stability of the results of suchvision correction, too, left much to be desired, because the speed of healing depends on the individual cell regeneration rate of each person - someone could boast that he had wounds heal quickly, and someone has to walk for weeks with a bandage because the slightest scratch .. . Yes, and besides, the surgeon tools often was far from the micron accuracy. This method, and it has generated a lot of rumors and prejudice, frightening the people of the XXI century.
A new life, this method was in the 70s whenhis perfected known ophthalmic surgeon Svyatoslav Fedorov. By that time there were new diamond tools and microscopes, which allowed to pass to the method of radial keratotomy to a qualitatively new level.
However, after the operation all as requiredlong-term rehabilitation, often encountered complications from accidental voltage at any load, the patient could lose his sight. Well, the question of the predictability of the result was still open. The desired "unit" managed to get a little. This is where the roots are many prejudices about laser vision correction. But attempts to find another way to restore good vision, have not been abandoned.
Laser vision correction
History of the excimer laser, is actively usedin modern ophthalmology it begins in 1976 year. Then the attention of medical researchers attracted development, IBM. The IBM team used a laser beam to apply engraving on the surface of a computer chip. This procedure does require high precision (micron), and know how seriously interested physicians.
As a result of medical researchWe found that the safety of use of the laser beam and the ability to control the impact zone in the depth and the diameter is of particular importance in such a sensitive area as refractive surgery. And so it began a triumphal procession of laser vision correction.
The first laser was carried out in 1985PRK vision correction procedure. Just as in the case of radial keratotomy, exposed directly exposed cornea. But the principle of impact was different. The application did not require incisions. The shape of the cornea has changed under the influence of the laser, which vaporizes tissue from the surface and formed a new surface.
High accuracy allows to achieve goodthe predictability of the result, a significant reduction in side effects of vision correction. But the patient was extremely unpleasant period when the surface layer (2-4 days) to complete the adaptation took 3-4 weeks. But, despite this, the patients were very satisfied, because the newfound excellent vision allows you to quickly forget about the discomfort.
Most popular today LASIK technique(LASIK), appeared in 1989. Its main advantage was that the surface layers of the cornea is not touched, and the evaporation of the corneal tissue is from the middle class. This laser correction method has become a real revolution in refractive surgery, and today LASIK allows for vision correction under local anesthesia, in minutes, significantly reducing the rehabilitation period.
During correction using a special instrument- Microkeratome - bent surface layer of the cornea thickness 130-150 microns, after which the laser vaporizes a portion of the cornea and dissociated corneal flap is laid back into place. Recovery epithelium flap on the edge occurs within a few hours after the correction, and it is firmly fixed. The patient immediately noted a significant improvement in vision. Finally his acuity is restored within a few days.
LASIK technology has undergone clinical multistageTest before it began to be used in ophthalmic centers and clinics. Long-term monitoring of patients have shown that the excimer laser does not cause any disturbance, as the impact occurs only on one of the refractive media - the cornea, and the depth of the impact is strictly limited.
Today, work on this technique, medicalcenters and clinics in 45 countries. Over the past 10 years, the world held about 5 million LASIK vision correction procedure. In the US and Japan, the procedure of recovery by means of laser vision correction has long gone beyond the specialized clinics. Most smaller centers laser correction can be seen in areas of large shopping malls, next to the dental and beauty parlor and beauty salon.
Patient diagnosis of passes, thenaccording to the survey data of the doctor conducting the correction. In addition, the US government as part of a national program to improve the armed forces year after year pays for laser correction of all ranks and branches.
The high level of security and improvedthe latest generation of laser installation made laser correction procedure simple and accessible to everyone. Of course, we must not forget that, like any medical technique, laser surgery has some contraindications and limitations. It is not recommended for people suffering from HIV infection, tuberculosis, diabetes, certain skin and eye diseases, pregnant women and nursing mothers, children under 18 years. But the same, who may restore vision using this technique, the correction becomes a real salvation. It's neither an incomparable pleasure - every day to look and see the world bright and clear.
Among the thousands of people who have made laser correctionof view, there is not one that would ever regretted his decision to give up glasses and contact lenses. Former patients of ophthalmologists often recognized only after the laser correction, they began to feel like full-fledged human beings. It's so cool - do not worry about what you can something not to see. Having made the correction, they persuade to this feat of his visually impaired friends. And those, in turn, then wonder why they are so bad persuaded and could not convince before.
The truth about laser correction,
The truth about laser correction is thatit really helps to get rid of nearsightedness, farsightedness and astigmatism. Today it is the most reliable and the perfect way to restore vision, allowing to forget about glasses and contact lenses once and for all!
In conclusion, we note that after alltrust your eyes can and should only specialized clinics, staffed by experienced doctors and modern sparing methods and using the best equipment. After the experience of surgeons, modern equipment and technique is the cornerstone of quality eye clinic.