There are lots of methods of vision correction today but not all of them are really helpful and effective. The most efficient method is laser operations. With lots of newest technologies such serious eye illnesses as astigmatism, nearsightedness and long vision can be treated. Such techniques are being developed in Glendale lasik institute. People who use laser vision correction can be assured that the results of the operation will be constant and their sight would be normal.
The history of laser vision correction
The issue of vision correction became being reviewed in the beginning of the 20th century. As a consequence lots of discoveries with the retina were performed. One of the most widespread methods is Fedorov's method. The tools for such operations are really microscopic and by means of them surgeon can perform as little incisions as he requires. Lately that has turned out that despite of its effectiveness this method of sight correction implies the appearing of several unexpected side effects. The retina goes through definite mechanical actions and the operated person can get some worsening of the vision or in rare cases that may be the absolute loss of sight.
Eximer-laser vision correction
Fedorov's technique was broadly used but it wasn't perfect so some other techniques appeared then. Doctors wanted to get some modern solutions and in 1980's the newest eximer laser was proposed by scientists. The modern vision correction methods are based precisely on eximer laser technologies and they are considered to be the most effective. The accurateness of laser beam which carries out some operations on the surface of the eye is provided by computer. The basic purpose of performing of any surgical operations is to set the proper form of the cornea. Operations which demand the usage of laser system are truly complicated and there are some newest techniques which may offer the needed preciseness.
PRK method
Current technique is the first case of use of eximer laser in medical objectives. The essence of this system is to eliminate the unevenness of the retina by means of evaporating of its substances. The other benefit of this method is that neither instrument nor surgeon contact with the surface of the eye as the laser beam is utilized. Nevertheless PRK system has some drawbacks: some micro erosion appears during the operation and the patient feels pain over a period of several days.
Lasik method