The Newest Techniques of Laser Sight Correction
Posted by admin on November 6, 2008Today laser treatment is believed to be one of the most progressive trends in the area of up to date ophthalmology. With lots of modern technologies such serious eye disease as astigmatism, nearsightedness and long vision can be treated. Probably the physicians Tracy lasik institute will propose some modern solutions to this method. The most significant advantage is that the vision treatment is stable and the vision won't get worse in future.
The history of laser vision correction
The problem of sight correction became being reviewed in the beginning of the 20th century. Such late developing of this field of medicine is conditioned by the shortage of needed technologies. The famous Russian scientist Fedorov developed some methods then. During the operation doctor uses some special microsurgical instruments and performs little incision and insections on the cornea. Lately that has turned out that despite of its effectiveness current technique of sight correction implies the appearing of some unexpected side effects. The operation is rather hazardous as it may cause some serious consequences. In definite conditions it can be even the complete loss of sight.
Eximer-laser vision correction
Doctors began developing different modern techniques utilizing principles of Fedorov's method. Doctors required to get lots of modern solutions and in 1980's the newest eximer laser was offered by scientists. Nowadays physicians announce that methods which use eximer lasers as base are actually safe and their efficiency is unbelievable. Laser beam is driven by some definite computer program of reshaping of the cornea. As the shape of the eyelens is changed, some normal features can be rehabilitated so beams are being aimed on the retina properly. These days we may often hear about some other techniques that are more effective and safe. They are PRK photorefractive keratectomy and Lasik techniques.
PRK method
That method is actually widespread and it is based on use of eximer laser in medical purposes. Laser beam that is aimed on the tissues of the retina evaporates part of them and the shape of the eyeball become appropriate. Scientists relate this technique to the non-contact methods as all the actions are carried out just by usage of laser beam. This operation is considered to be really painful for the persons as the retina is being seriously injured.
Lasik method
This system is the newest one as there is a combination of mechanical and thermal instruments. The initial experiments were performed by the scientists of Weymouth lasik center. The upper substances of the eyeball are detached and saved by means of some organic liquids. The most advantageous is that the upper layer wouldn't be damaged and there will no pain during the process of the rehabilitation. So other parts of eyeball are now obtainable for the laser beam. The final stage of the operation is to set the detached parts of the eyelens on the proper position. So current system may help people who suffer from bad eyes with no incisions and sutures at all. The most renowned institution that performed a great deal of experiments is Clemson lasik surgery.