A Clear Vision Of Lasik

By Author: Samir Shah
Total Articles: 4393
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Usually if we need our vision corrected we wear graded eyeglasses or contact lenses. These would work great and oftentimes solve our vision problems. But would it be great if there is some other way to see clearer. Eyeglasses tend to be awkward to use especially when you are engaged in physical activity. On the other hand, contact lenses are very troublesome to wear. You really need to maintain it a lot and if you are not careful this might irritate your eyes. Now there is a medical procedure that could improve you vision without going through the ordeals of having eyeglasses or contact lenses; this is the Lasik Eye surgery.

Lasik (laser-assisted in situ keartomileusis) is a type of laser eye surgery used to correct myopia, hyperopia, and astigmatism. This technique was developed in the 1950's by Dr Jose Barraquer of Spain. He is the one who developed the first microkeratome which is used to cut thin flaps on the cornea. In 1958 Dr. Mani Lal Bhaumik and some group of scientist developed the excimer laser. These discoveries lead to the enhancement of Lasik surgery which we know today.

This procedure could both ...
... benefit near-sighted and far-sighted people. For near-sightedness the corneas are usually flatten. For far-sighted people the goal is to make the cornea contour steeper. It could also smoothen out irregular corneas, which is the case for persons with astigmatism.

Before undergoing the procedure, patients with contact lenses are advised to stop wearing them for 5 to 7 days before surgery. Doctors then will determine the thickness of your cornea by using a pachymeter. Using a topographer, the doctors will make a topographic map of your corneas. This will enable them to see the exact shape and contour of the cornea. It is needed so the doctor could determine the exact location and amount of the corneal tissue that will be removed.

The operation is performed in a clinical setting with a patient wide awake. A patient could be given a mild sedative (like valium) or some anesthetic eye drops.

The first thing that the doctor will do is to make a flap in the cornea. A corneal ring is applied to the eye so that it will be immobilized. Once immobilized a flap is created by using a mechanical microkeratome with a metal blade. A hinge must be left at the edge of the flap so that it could be folded back; this procedure could be irritating. Once it is folded back it will reveal the middle section of the cornea which is the stroma.

The second part is where the excimer laser will cut off excess tissue of the stroma. Removal of tissue is done is microns and no heat is generated during this procedure.

Finally the flap is returned back again to its original position. The flap does not need to be sutured back into place as it will heal and adhere naturally.

After all this the patient could continue back to his or her normal life with an assurance of a much clearer vision ahead.

About the Author:

New Vision Laser Centers currently has 13 http://www.newvisionindia.com/lasik.htm. Each center is fully equipped, and has daily consultations with patients. New Vision takes special pains to make sure that its staff and doctors are well trained.