Treatment of refraction of the eye defects Farsightedness - myopia - Alastijmatesm

Over the 52 years it is flaws treat refractive eye through the cornea, which was striping the famous Russian surgeon (Fedorov), one of its astronauts. In the early eighties Alaximrlesr technology emerged that allowed the restructuring of the surface of the cornea very accurately.
The beginning was what is known as Photo Refractive Keratectomy PRK, which was done by the removal of surface cells of the cornea before the laser, and it was this technique is the most common until the early nineties, where it was developed to enter what is known as Laser Assisted Insitu Keratomileusis which caused a boom in surgery disadvantages of refraction eye, where they were to avoid all the side effects of PRK in terms of not feeling pain after the operation and rapid improvement to consider the next day and treat a larger proportion of degrees of myopia ... Etc., and is the lifting of a thin layer of corneal tissue (about 051 microns) and a laser and then back again.

On this subject, here is the meeting (by the magazine Al-Watan Clinic) with Dr. Mohammed Wajihuddin consultant eye surgeon in New Dar Al Shifa Hospital.


- What disadvantages of refraction of the eye?

Myopia Myopia: occurs when light rays converge before the retina, instead of falling on the retina, where visibility is remote to the patient is not clear

Hyperopia Hyperopia: occurs when the rays converge after the network instead of falling on the retina, where visibility is near and perhaps distant but clear

Astigmatism (astigmatism) Astigmatism: occurs when light rays converge in more than one point rather than to fall at one point on the retina

How does a laser beam?

The laser beam re-formation of the surface of the cornea as follows:

- In the short-sightedness is remedied by making the central part of the cornea flatter by scraping a certain degree of the central part of the cornea
- In the length of treatment is making the central part of the cornea more Thdba by scraping a certain degree of peripheral or outer portion of the cornea
- In the astigmatism is treated by making the cornea more spherical remove the layers of the cornea in one part more than the other part

Who is the ideal patient for LASIK? Laser-In-Situ Keratectomy (LASIK)

Do you learn to fit your eyes for LASIK or not, they must do some tests that determine accurately the state of the eye such as the form and degree of curvature of the cornea, the thickness of the cornea, pupil diameter, the degree of restriction or farsightedness and astigmatism ... Etc., in addition to the stability of consideration for a period of not less than 12 months to ensure the accuracy of the results after the operation, which is usually after the age of 18 years.

What your expectations after the operation?

This may be very important if not the most important of all, you are the first and last decision to make LASIK, and it must be your expectations after the operation a logical and realistic as they are usually derived from the result of tests and information that is made before the operation.
The fundamental goal of LASIK is the liberation from the shackles of glasses and contact lenses as much as possible, so a large proportion of patients have access to view 20/20 or what is the best 15/20 Super Vision, but there are other rate also can not get such impressive results, but will improve their concrete gives them a significant change in their lives, because of the difference and contrast between the state and the other in terms of the visual age of the patient and the results of the examinations and corneal tissue response to laser .. Etc. of the factors that significantly affect the outcome of the process.


What side effects of LASIK?

Fact, LASIK is considered one of the most safe operations in eye surgery and what happens after the operation is what we call the symptoms of visual temporary differ in degree and duration of the patient to another and the best known is the flash or glare that occurs at night when you look at some of the dazzling light, such as red or yellow and orange as Safa is gradually improving, as well as dry eye in the period ranging from two to four months after the operation.

When can the patient's exercise of his natural life after LASIK?

The patient can go out and driving and watching television in the next day for the procedure, and it can exercise light walking, jogging and return to work during the first week of the operation, but it must be some caution and to follow a few instructions for a short period such as not touching or rubbing the eye, not to enter water to the eye, not to be subjected to smoke or smoke, sunlight, and smells acrid and not putting the solution in the eye (for women) in addition to the need to adhere to the dates of periodic review, which are usually during the first day and then the first week and then when the first month and third if necessary.

What's new in laser surgery?

For laser operations, we are entering a new era is the use of Alfoto seconds to work a thin layer before the LASIK Intralase and there are now new technologies for the use of LASIK to correct distance and reading Presbyopic Lasik but are under development and there are other techniques such as Alabilazak Epilasik and Allazak Lasek which aims both to develop and update the results and access to the highest level of vision separately

Are there other ways to correct myopia in patients who have LASIK works for them?

Of the basic conditions for the conduct of LASIK is a surface of the cornea a regular basis and the thickness of the cornea is sufficient for abrasion and in the absence of these conditions do not favor a LASIK, but it is possible to perform surgery to implant the lens inside the eye to correct the degrees of myopia or high in cases of weakness of the surface of the cornea.


What types of lenses that are grown inside the eye and results?

There are many types of these lenses which are installed inside the angle of the Treasury front of the eye Nuvita - Phakic 6, including what is installed Bakzhah eye Iris Fixed - Verysyse, including what is grown over the lens of the eye the original ICL are common to all these types in that they are safe and gives excellent results, as characterized by LASIK for the possibility of removal at any time.

Source :
http://www.tbeeb.net


غير معرف في : 16 يناير 2013 2:45 م يقول...

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