Up to Date Technologies Can Help to Save Sight to Persons with Complex Diseases
You might have known about such method of vision treatment as laser correction and its effectiveness is believed to be the greatest. As in any other field of medicine doctors attempt to apply a lot of modern technologies and thanks to it we can cure even such diseases as astigmatism. These methods are being improved in Redwood City lasik institute. The consequences of such curing courses are usually stable and do not change during the entire life.
The history of laser vision correction
The issue of sight treatment became being reviewed in the beginning of the 20th century. Such late developing of that area of medicine is conditioned by the absence of required technologies. One of the most spread systems is Fedorov's method. The entire operation includes several small incisions and insections performed by surgeon with some microscopic tools. After the initial test operations were carried out the scientists knew that such operations can do harm to the eyelens and some other parts of eye. The retina goes through definite mechanical operations and the operated person may have some worsening of the vision or in rare cases it can be the absolute loss of vision.
Eximer-laser vision correction
Doctors started developing different new methods using principles of Fedorov's method. Physicians required to get lots of new solutions and in 1980's the newest eximer laser was offered by scientists. The modern vision correction techniques are founded exactly on eximer laser technologies and they are considered to be the most efficient. The accurateness of laser beam that performs some operations on the surface of the eye is provided by computer. As the form of the eyelens is changed, some normal features may be regained so beams are being focused on the retina properly. These days we can frequently hear about some other methods which are more efficient and harmless. They are PRK photorefractive keratectomy and Lasik techniques.
PRK method
This method is the first case of usage of eximer laser in medical purposes. The essence of this method is to eliminate the unevenness of the cornea by means of evaporating of its tissues. Physicians relate this method to the non-contact techniques as all the actions are performed just by usage of laser beam. However PRK system has got some drawbacks: some micro erosion appears during the operation and the patient feels pain over a period of several days.
Lasik method
This method is the complex of microsurgical actions and eximer-laser system. The primary experiments were performed by the scientists of Jackson lasik center. During the operation definite upper layers of cornea are removed and placed in some liquid to save it. The most advantageous is that the upper tissues wouldn't be injured and there will no pain during the period of the rehabilitation. So other sections of eyelens are now obtainable for the laser beam. When the operation is over the extracted parts ought to be attached to the eyeball. The main benefit is that laser beam has got considerably greater accurateness if matched with any other surgical instruments. There are many establishments that attempt to improve better techniques of vision treatment and probably the most famous of them is Racine lasik surgery.
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