How Does LASIK Surgery Correct Your Vision?


If you are tired of wearing your glasses you have some options. One of them is to wear contact lenses. But you may not want to do that either. Another option is to go with something like LASIK surgery. After having that surgery, you likely won't need your glasses at all. 

What Is LASIK Surgery?

LASIK is a laser surgery for your eye. It reshapes your cornea, changing your vision. For most people the surgery is successful enough that they don't have to wear glasses anymore. Those people who will still need glasses are able to wear a milder prescription. 

How Does LASIK Work?

The cornea is the part of the eye that controls your vision. How the cornea is shaped depends on how you see. A near sighted eye has a cornea that is too sharply angled. The goal there is to make it flatter. For a far sighted eye, the cornea is too flat, so it needs to have a different angle. Eyes with astigmatism have corneas that have irregular shapes. The surgery rounds them off and makes them more regular. 

The doctor opens up the cornea using a laser. The doctor does this by creating a flap in the cornea itself. They are able to fold over that flap in order to get into the area of the eye in which they work. The work is done on the deeper corneal tissue. It's this tissue that shapes the cornea. So the doctor removes very small amounts of tissue until the eye is at the proper shape. The doctor doesn't want to remove a lot of tissue at once because it could overcorrect the eye and cause further damage. 

Once the cornea has been reshaped, the doctor closes the flap. The cornea doesn't require any stitches or anything else to hold the flap in place. It will heal naturally, sealing that flap securely. However, you should take it easy for a few days. That way there is no stress placed on the eye. 

You aren't going to see results right after the surgery. Generally it takes a few days for the post-surgical blurriness to subside. Once that happens, you should experience better vision. 

Because the patient isn't sedated for the surgery, it is an outpatient surgery. Generally all that's needed is a numbing agent for the eyes. However, because of the blurriness, you will need someone who can drive you home. You won't be able to see well enough to do it. 

LASIK surgery is one way that you can get rid of your glasses. You don't have to worry about waking up and not being able to see, or fumbling with contact lenses. In most cases, your vision is corrected to normal. 


11 October 2014