There are lots of methods of vision treatment nowadays but not all of them are truly helpful and efficient. The most efficient system is laser correction. With assistance of some modern systems doctors are able to cure such illnesses as nearsightedness, long sight and astigmatism. These methods are being developed in Danbury lasik institute. The most considerable advantage is that the vision treatment is stable and the vision won't become worse in future.
The history of laser vision correction
The history of laser correction methods started in the early 1960's in different states simultaneously. Scientists began to develop some modern technologies to study retina more appropriately. One of the most widespread methods is Fedorov's method. The entire operation consists of several little incisions and insections performed by surgeon with some microscopic tools. Lately that has figured out that regardless of its effectiveness this technique of vision treatment implies the appearing of some unexpected side effects. Physicians recommend resort to these operations if the situation with vision is not despairing as the operation is really complex and risky.
Eximer-laser vision correction
Of course the improvement of some modern methods of sight correction was continuing. In the 1970's the first eximer laser was developed that had a great impact on medicine in general. That is hard to believe but modern eximer laser methods can guarantee the safest and the most effective operations. The accurateness of laser beam that performs some operations on the surface of the eye is provided by computer. As the shape of the eyelens is changed, some normal characteristics may be regained so beams are being aimed on the retina properly. There are two the most celebrated methods that are commonly utilized nowadays: PRK photorefractive keratectomy and Lasik.
PRK method
This technique is the first instance of use of eximer laser in medical objectives. To set right the form of cornea the laser beam which has high temperature evaporates some superfluous parts of eyelens. Another advantage of current method is that neither tools nor surgeon touch the surface of the eyelens as the laser beam is used. However PRK system has got several drawbacks: some micro erosion can take place during the operation and the patient feels pain over a period of a week.
Lasik method
This technique is the complex of microsurgical influence and eximer-laser technology. The initial experiments were performed by the doctors of Boston lasik center. The upper substances of the eyelens are detached and saved by means of special organic liquids. The basic instrument which is used during the applying of lasik technique is a special microsurgical instrument which cuts the upper level of the cornea. That is not so difficult to correct some sections of inner structure of the eyeball. The final section of the operation is to set the detached parts of the eyeball on the proper place. So this system may help people who suffer from bad eyes with no incisions and sutures at all. The most renowned institution that performed a huge amount of experiments is Dulles lasik surgery.