Modern Systems Can Assist to Cure Sight to Patients with Complex Illnesses
at 7:27 am on Thursday, 6 November 2008
There are lots of methods of sight treatment nowadays but not all of them are really useful and effective. The most effective system is laser correction. With lots of modern systems such significant eye illnesses as astigmatism, nearsightedness and long sight can be treated. Doctor John Zorn said that Lancaster lasik institute has a possibility to develop such methods significantly. The most significant benefit is that the vision treatment is stable and the sight won't become worse in future.
The history of laser vision correction
The initial phase of the developing of laser correction methods began in the middle of the 20th century. As a consequence lots of experiments with the eyelens were carried out. The famous Soviet scientist Fedorov developed some methods then. During the operation surgeon uses some special microsurgical tools and performs small incision and insections on the retina. Surely such operations are truly hard to perform and even some inconsiderable error may have a lot of bad consequences. The retina goes through definite mechanical actions and the patient can have some worsening of the sight or in rare cases that can be the complete loss of vision.
Eximer-laser vision correction
Surely the developing of some new methods of sight correction was continuing. Physicians required to get lots of modern solutions and in 1980's the newest eximer laser was offered by scientists. Today doctors announce that methods which use eximer lasers as base are actually safe and their efficiency is unbelievable. The preciseness of laser beam which carries out some actions on the surface of the eye is provided by computer. As the form of the eyelens is changed, some normal features can be regained so beams are being aimed on the retina properly. There are two the most celebrated methods which are frequently used nowadays: PRK photorefractive keratectomy and Lasik.
PRK method
This technique is the first instance 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. Physicians relate this technique to the non-contact methods as all the actions are carried out only by means of laser beam. Nevertheless PRK system has some drawbacks: some micro erosion appears during the operation and the operated person feels pain over a period of several days.
Lasik method
Current method is the combination of microsurgical influence and eximer-laser system. That was firstly utilized in London lasik center. During the operation definite upper layers of cornea are detached and placed in special liquid to save it. The most beneficial is that the upper layer wouldn't be damaged and there will no pain during the process of the rehabilitation. That is not so difficult to correct some sections of inner structure of the eyelens. After the operation is over the detached tissues should be attached to the eyelens. So this system may assist people that suffer from bad vision with no incisions and sutures at all. Every year a great deal of ophthalmologists from all round the globe assemble in Charlottesville lasik surgery to define some problems and offer resolutions related to laser vision correction.
Sorry, comments are closed