Laser Eye Surgery: What Happens And Why

Laser eye surgery often called lasik eye surgery, is a procedure that allows your eye sight to be corrected. There are actually many different types of this surgery and the equipment often changes from one doctor to the next. What the overall benefit is, though, is simple. By adjusting the shape of your cornea, you can improve your eye sight considerably. Like any other surgery, there are risks involved. But, the benefits are there for most that have laser eye surgery.

The cornea of your eye is the film of tissue that covers your pupil. In a normal eye with no vision problems, it has a very specific shape that is even and rounded. In an individual that has near sightedness or far sightedness, the cornea is misshapen to some degree. By bowing out or changing shape in just a bit or a lot of area, the cornea distorts your vision, which leaves you with problems like not being able to see things that are far away or being unable to see things up close.

With the help of laser eye surgery, though, this can be changed. The doctor will remove part of the cornea from your eye on only three sides, creating a flap. From here, he will use a high powered laser to change the shape of the stroma, which is the tissue that lies under the cornea that?s been removed. By shaving that to the desired level, he improves your vision. When the cornea lays back over the eye, it now lays there correctly, with the right curve which ultimately improves your vision.

The laser eye surgery procedure is one that should be carefully considered because there are some risks. But, if the procedure goes correctly, within some time after healing has been complete, your eyes can actually improve in vision. Some individuals gain excellent eye sight. Others improve. Talk to your doctor about the benefits that can come from your improvements.

Frank Montes has written amazing articles on laser eye surgery. Read these articles and find out everything that you need to know about laser eye surgery, vision correction, contact lenses and a lot more.

You can read more of Frank?s articles about laser eye surgery at http://www.lasereyesurgeryplanet.com

Are You A Bad Candidate For Lasik Eye Surgery?

Lasik eye surgery is not the right thing for everyone. Although there are many individuals that can see remarkable improvement with eye surgery, some are just not the right candidates for the job. That?s because of the eye conditions or the risks that they face. The eye surgeon that you are working with will talk with you specifically about your actual benefits versus the risks of lasik. They will also tell you if you even are a person that can consider having lasik eye surgery at all.

Some of the reasons why lasik eye surgery may not be right for you include these.

? If you are talking medications like steroids or medications that will limit the healing that your body can do, you may not qualify.

? If the costs are too high and you simply do not have coverage with your insurance company, you too may be limited.

? If you have an autoimmune disease or some other type of major illness or chronic condition, you may not qualify. This will depend on what condition you have.

? If you have a prescription for glasses that is quite strong, have a prescription that changes often, or you have a need to wear your glasses only some times, you may not qualify.

? If your career depends on your eye sight, you may want to consider your options closely.

? Your eye?s physical condition may also make a difference. Things like the pupil?s size, the amount of tear production that you have as well as the corneal thickness that you experience, all matter.

Although many individuals are the perfect candidate for lasik eye surgery, others have other conditions that stop them from having lasik performed. Your doctor will work with you to determine your level of risk and ability to have it before making any promises to you.

For more observations about laser eye surgery from Frank, visit =>http://www.lasereyesurgeryplanet.com

 

LASIK Eye Surgery: A Definition

The word LASIK means ?Laser-Assisted In Situ Keratomileusis.? In situ is latin and means to deal with a phenomenon in place where it occurs, as opposed to outside of it?s environment. Keratomileusis is a surgical improvement of the refractive state of the cornea. It is performed by lifting up the front surface of the eye by forming a thin hinged flap, under which the shape of the cornea is changed by using some type of surgical device.

Excimer Lasers

LASIK eye surgery is therefore surgery that is done in order that a person who wears glasses or contact lenses should no longer be completely reliant on them to see. It is a medical procedure undertaken by a qualified opthamologist. The aim is to modify the shape of the cornea (the clear covering of the front of the eye) through use of an excimer laser. An excimer laser is a type of ultraviolet chemical laser that is unusually well focussed and capable of highly delicate control. Instead of burning away or cutting materials, an excimer laser intrroduces sufficient energy to disrupt molecular bonds of surface tissues. Effectively the tissue disintegrates in a controlled fashion through ablation rather than burning. Excimer lasers can remove very thin layers of surface material with almost no heating or change to the material which is left behind.

Flap Creation

When LASIK surgery is performed, a knife known as a microkeratome is inserted into the cornea and cuts a flap of skin. A human cornea measures from around 500 to 600 micrometres in thickness; the microkeratome creates a 100 to 200 micrometre thick flap. At one side of the flap is left a small piece of skin known as a hinge. The flap of skin is then gently folded back to show the stroma (otherwise known as the middle area of the cornea).

There are two types of microkeratomes currently in use, mechanical and laser. Both are affixed to the eye by use of a 360 degree vacuum ring, flatten the cornea with a clear plate, then cut the cornea underneath the plate.

Mechanical microkeratomes use a sharp thin metal blade. Laser microkeratomes are used in the IntraLasik procedure. They employ amplified light energy to form thousands of minute bubbles at a predetermined depth. These bubbles of water and carbon dioxide connect with each other create an incision.

Reshaping the Stroma

A laser that is controlled by a computer is then used to disintegrate a part (but not all) of the stroma and after that is finished, the flap of the cornea is fixed up and put back into place. New and more advanced ways of performing LASIK surgery are being looked at all of the time.

The purpose of eyeglasses and contact lenses is to compensate for the weaknesses of the eyes and to allow for vision that is as clear as can be. LASIK is a form of refractive eye surgery that is geared towards improving the eye?s ability to focus and not just focus, but also focus well on any object. When it comes to LASIK surgery, a laser is used to remove part of the tissue of the cornea and then it is reshaped in order to improve its ability to focus.

Visit http://www.medopedia.com for information on the wavefront Lasik procedure.