How Does Lasek Work?
LASEK which is an acronym for Laser Assisted Sub-Epithelial Keratomileusis is one of the younger techniques for executing eye surgery and rectification of vision.
LASEK as an surgical procedure is worthy for all of those that can not get the more frequent surgery, LASIK, because of several grounds, including to fragile cornea or too straight cornea. External factors, such as line of work may play a role in the selection of surgical process method. For instance, athletes and airplane pilots may fair better without a flap in their cornea.
If you want to do an LASEK surgical procedure on your eyes you are most likely above 18 years old, or that your prescription glasses or contacts hasn’t varied for at least a year. If that is the case, anyone with Myopia (short-sight), Hyperopia (long-sight) or Astigmatism can do the the surgical procedure.
Before we go through the how you eye function. Our eyes are very much dependant on light. If there wasn’t some light you would not be able to visualize at all. When the light rays hit our eyes of the outside cornea it is bend, or refracted so that it becomes adjusted on the inside and back of the eye, the retina. The retina is where the “picture” is created and where the optic nerve pick up the picture and transmit it to the mind where we “see” it.
If you have any kind of the above named vision problems the flexing, or refraction of light is the problem that causes you vision to go bad. The light rays become cracked and the picture on the optical nerve go out of of focus.
Omitting any pre- and post examinations the following will in a great sense deal with how a LASEK process is executed.
To commence you will have anesthetic drops in your eyes to take away any pain during the surgical process. Next, an lid speculum is attached to the eyelids to hold them apart through surgical process and so that the doctor doing the surgery may have full access to the eye during the procedure.
Next, a tiny retinal cone is placed on your eyes outer surface off the cornea. In this retinal cone a few drops of a mild alcohol solution is dropped. This alcohol softens the outer layer of the cornea. Within second the doctor then removes the alcohol and the area is rinsed in good order. The doctor may now take away the outer surface of the cornea and reveal the central cornea layer, called the stroma. As you can read from the description no cutting tools is used around your eye during the procedure. The outer surface of the cornea is just lifted back once the operation is finished.
The next stage of of the operation is when the laser is employed. In nearly every surgery a special laser is applied, called the Excimer laser. This laser will send pulsations of UV-light into the eye. This UV-light is used to evaporate enough of the central cornea layer to remold it as much as needed to rectify the vision.
When the laser has completed its job the cornea surface is put back and a protecting bandage lens is put in to protect the initial healing period. This lens is taken away inside a few days, and inside a workweek, or two you are able to drive and work again.
The man behind this article about LASEK is Andrew Millsap. He is a freelance article writer and also a happy LASEK patient. Article Source:http://www.articlesbase.com/vision-articles/how-does-lasek-work-1075859.html
Benifits of Eye Surgery
Vision impairment is indeed a very big issue for some people as it effect their whole life when it comes to how they can live it. And it is not only the fact that they cant use their vision and eyes properly, it’s the fact that many people se the use of glasses and contacts as an hassle they rather escape. Fortunately there is help.
Laser assisted eye surgery has in the last years made a hugh leap in development and prices meaning that is now a very safe procedure and the price is nowhere near what it used to be. Today you can get the most common laser assisted surgery types for about 1200-1500 USD depending on where you live and your level of defect of vision.
Main reason for people having bad vision is that the light rays from our surroundings that hit our eyes (the cornea) may be poorly reflected into the eye thus producing a defect image on the retina and image nerve. This type of defect are common if you are near-sighted, far-sighted and/or have astigmatism.
Sow how does laser eye surgery work?
As a first step the doctor will analyze and measure your vision defect as a measure to know which how how the surgery will go forth. Next, he will, depending on your defect and other external and internal conditions choose which kind of surgery method he will choose. Today, the most common vision corrective surgery methods are LASIK and LASEK.
What these to technologies have in common is that they, with different methods first remove the outer part of the cornea. Either by using a tool to cut a small “flap” that can be folded away and then put back, or by using a fluid that softens and loosens the cornea, thus being able to remove it. Then with the middle part of the cornea exposed a, a laser is used to vaporize just enough material in the eye so that any defects become corrected and you get your vision back.
Depending on which method used the patient and the eye is then fitted with a soft contact lens that works like a bandage and/or protective film. Normally healing is fast and usually take about 3 to 4 days.
Laser eye surgery can work miracles for anyone that feel that their eyes are worth more than just glasses and contacts. Adding to the fact that the prices today is probably considerable less then what you spend on glasses and contacts over a lifetime and you will be able to live a more active lifestyle there is no reason not to consider it.
The writer behind this article is Andrew Millsap. After going through with a laseroperation he has now stopped using glasses, expect sunglasses ofcours. Article Source:http://www.articlesbase.com/vision-articles/benifits-of-eye-surgery-1079119.html
What Is Lasik
In recent years more and more people are thinking about getting rid of their glasses or contacts, but most of them cringe at the thought of having surgery done on their otherwise healthy eyes. This article is for those of you that are thinking about having a LASIK surgery and finding it hard to find information on the subject. LASIK, with it’s time tested technology and precise surgical skill, is one of the safest, most effective eye surgery on the market.
LASIK is the use of a leaser beam to modify and reshape the cornea of you eye, thus improving your vision. But why do you have bad vision in the first place?
Our vision is dependent on one thing, light. Without it our vision will not work at all. Our eyes are built such as that they take the light in our environment, or light rays, on the front of the eyes and refract (bend them) so that they become focused on the inside of the eyes surface (the retina). You can very much compare the procedure to that of an camera.
The light on the retina then produce an image that optic nerve then transfer to your brain. The brain interprets the signals and we view them as images. But why do some of us don’t see this image as others do?
The problem lies in that the cornea might be deformed. This means that the light rays being transported to your retinas become corrupted, and the image become malformed. For those of you that experience this problem, LASIK eye surgery might be just the solution.
LASIK stand for Laser-Assisted-In Situ-Keratomileusis and is a surgery method which uses laser to correct vision problems for people that are shortsighted, longsighted and anyone with astigmatism.
Before the use of the Excimer laser mechanical tool is used to create a “flap” of the outer corneal tissue that can be folded out of the way and then be put back in place after the surgery. This flap is created to be able to access the underlying corneal tissue that is to be reshaped.
LASIK and most other laser eye surgery work by focusing a tight beam of light, a laser beam onto the surface, the cornea of the eye. Upon contact with the cornea the laser will then, vaporize a very, very small portion of the surface. With the aid if sophisticated equipment the doctor are able to adjust just how much that will be vaporized according to your vision problem.
Once the laser has finished and the flap has been replaced it start to naturally seal itself to the rest of cornea. You will have to wait a few days for your eyes to heal and accommodate, but once that is done, you will no longer need glasses nor contacts. Compared to other eye surgery the healing time is quite quick and one of it’s main advantages.
The man behind this article about LASIK is Andrew Millsap. He is a freelance article writer and also a happy LASIK patient. Article Source:http://www.articlesbase.com/vision-articles/what-is-lasik-1075871.html