Posts Tagged ‘laser’

Laser Eye Surgery Gives Wonderful Vision To Those Who Have To Wear Spectacles

Monday, March 1st, 2010

Laser eye surgery, also called LASIK surgery can correct less than normal vision. In most cases the surgery is successful and the individual can see well without the aid of glasses or contact lenses. This type of surgery was developed in 1990 and has become increasingly popular.

Laser surgery is possible for those that have certain eye problems. Those with near sightedness and far sightedness are in luck because they qualify. When the eyes work correctly light pours through the lens of the eye and on to the retina where the light bends or refracts. The retina is what makes things focus within the sight system. People that have problems with vision have a problem with the light refracting on the retina. For many reasons the light does not get that far or goes too far. When you wear corrective lenses it causes the light to once again fall on the retina to focus.

A person that cannot see far has an issue with the light falling short of the retina and instead it falls on the cornea. All laser surgery requires is that the cornea be reshaped so that the light can refract on the retina. In the case above the laser removes material in the middle of the cornea, which becomes thinner and no longer stops the light from getting to the retina. Those having the opposite problem of not being able to see up close also has part of the cornea removed with the laser Instead of the middle material the laser cuts away from the edge of the cornea so that the light no longer over shoots the retina.

A patient is given a painkiller that is applied to the cornea of the eye before surgery. The eyelids are taped open and a metal tool called a speculum is applied to keep the eyelids apart. The surgeon makes a small makes a small cut on the cornea that creates a flap. The laser then removes the material from the cornea that makes it impossible for the light to focus in the correct area. The flap is put back where it belongs and stitched back into place. The procedure does not take long and though there may be some discomfort there is not any extreme pain involved. The laser is pre programmed and automated so there is little chance that there can be any mistakes.

The people that are most likely to have this surgery are those whose vision has not changed much, which limits the surgery and discounts young patients. Having a cornea that is relatively thin may prevent a patient from having the surgery. Material cannot be removed if there is not much there to be removed. This happens when a person has serious loss of eyesight. Those that have the age related presbyopia or have astigmatism are candidates for the surgery.

Health insurance usually will not pay for laser surgery. There are those doctors that will accept payments but most want to be paid the entire amount before surgery commences. Make sure to find a doctor that has done many surgeries. Do not go to a doctor that advertises a cheap rate and has not done many surgeries. Laser surgery will cost about USD $1500 at the least and $3500 at the most so watch out for added expenses after surgery by a doctor charging less.

This is considered major surgery and be prepared to have to do certain things before and after surgery. Those that wear contacts have to stop wearing them for a period of time and those that have hard lenses may have to wait a few months. Eye makeup must not be worn several days prior and a week or so after surgery. Eye drops will have to be taken after surgery and an antibiotic must be taken as well to stop any infection that may develop. There is a special guard to put over the eye when sleeping in order to protect it. The good news is that 90% of those that have the procedure can live the rest of their life being able to see perfectly without wearing corrective lenses.

Laser eye surgery and LASIK surgery are one and the same. Lasik is major surgery and should not be taken lightly. You should check out the lasik institute where you should be able to find a reputable lasik doctor. You will make a good start by checking out the useful, free information on our website.

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Why You Do Not Have To Fear A Lasik Surgery

Thursday, January 7th, 2010

Thinking about eye surgery using a Lasik procedure is a big step, and many people are a little hesitant to ask the questions that they have. The Lasik procedure, though widely talked about, is not discussed in detail, and people tend to fear the unknown. This article addresses some of the more commonly held fears, and talks about the experience for the vast majority of people that undergo a Lasik procedure.

In both Lasik surgery and all other kinds of operations, a common fear is about the pain during and after the operation. But a Lasik surgery is almost painless. Before the Lasik surgery is performed the eye will be applied with numbing drops. You will also be provided with a mild sedative to relax you and make you comfortable. So even though there can be a small pressure to the eye, you will not feel any pain.

Many people do also fear the actual operation where the laser is used to reshape the cornea to improve the sight. It can seem dangerous that the laser is used directly on the eye. And what if you look away? Will it hurt your eyes? There is nothing to worry about. The operation is only performed for about ten to fifteen seconds for each eye. And a sophisticated tracking system will make sure that the laser stops, if the eye is not in position.

Another common fear is the fear of “the scalpel”. All the eye surgeries use either a very small microkeratome blade or the laser itself to create the flap that is needed to perform the laser operation. So there is no reason the fear about a scalpel, because it is actually not used.

You hear horror stories every day about operations that went wrong, so it is just natural to wonder about the risks; especially the risk about going blind. But there have never been reported any cases of blindness due to a Lasik operation according to government statistics taken by the FDA.

Actually, the risk of a serious permanent complication due to the Lasik procedure is less than 1 percent, and the risk of any permanent complications even if not serious (such as light halos) is 3 percent or less. It is extremely rare for a patient to not have improved vision after a Lasik procedure.

If the thought of being awake and having your eyes open during the Lasik procedure bothers you, remember that you will be given a mild sedative for the procedure, and that your eyes will have numbing drops administered to them.

Are you more bothered about the thought of the Lasik physician’s hand approaching your eyes? Right before the surgery your eyes will be dripped with drops that makes your vision black out for ten to fifteen seconds; long enough for the surgery for that eye.

Martin Elmer is writing about eye surgery in Laser oejenoperation. You can read about LASIK, LASEK, LASEK, Wavefront and Aspheric treatment in Graa staer.

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What You Need To Know About LASIK Surgery

Wednesday, November 4th, 2009

Because it is gentle, fast, efficient and with few complications, the LASIK surgery is the most popular eye surgery type today. It is a great laser surgery for most people; no matter if they suffer from farsightedness, nearsightedness and/or astigmatism.

The PRK laser surgery has been further developed to the new LASIK form. In both surgeries the outer cornea layer is removed, so the laser can operate on the tissue. But while the PRK method is scraping the out layer of, the LASIK operation cut just a flap in the cornea that can be bent. After the surgery the flap can be put back in place

The operation itself takes only a few minutes and is completely painless. The eye will be anaesthetized right before the surgery, and most people will not feel any pain at all. Subsequently the flap will be cut and the laser surgery can be made.

The actual laser treatment takes between 30 seconds and two minutes. A special laser called an Excimer laser will be used. It is specifically designed to operate in the eye’s sensitive tissues. Finally the corneal flap is put back again.

You can go home right after the operation. Because the eyes may sting a little bit, it is recommended to rest for the rest of the day; and maybe also take a nap.

Most people will already at that time feel that their sight has improved. Over the next weeks will stabilize.

The eyes can feel a little dry after the operation. Dripping them with salt water might help.

All studies indicate that a permanent sight improvement is provided by the LASIK operation. And previous bad eyesight will not return again. But a possible, natural change of sight in the future is not possible to prevent by the operation. So the surgery should not be done before the sight is stable.

The age-related long-sightedness that all people will experience can also not be prevented by a LASIK operation.

Martin Elmer is writing about eye surgery in Laser oejenoperation. You can read about LASIK, LASEK, LASEK, Wavefront and Aspheric treatment in Lasek.

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Laser Eye Surgery Guide

Friday, May 1st, 2009
by Warren Rose

Eye surgery is not as easy as doctors tell us. In the first place, we perceive our eyes as fragile. And this is the truth. So many people in the world are going blind, that one really has to be very careful what clinic they choose to have this surgery done.

PRK signifies photorefractive keratectomy. The procedure implies the the cutting of a small fraction from the cornea, resulting in reshaping it. In this manner myopia and hyperopia are corrected, making it possible to give up the prescription glasses for so many patients.

Lasik is working on the same principle as PRK, but the layer removed from the cornea is not superficial, but the next layer under the surface. Then the superficial layer is put back in place, permitting the eye to heal.

Both procedures are done with excimer lasers. All lasers for Lasik or for any other type of medical intervention have to be FDA approved. This is how patients safety is secured. This is how the state show they are preoccupied to have a healthy population.

Vision defects can be settled through any of the two types of eye surgery. The doctors will consult each candidate individually, then indicating one operation or another. Every now and then, they could settle that the subject should not be exposed to any kind of eye surgery at all.

Mistakes in laser eye surgery can be very costly, as they may affect the patients vision for ever. Choosing doctors only after thorough investigations will reduce the exposure to such medical risks.

Eye surgery professionals say that the eyes heal quicker after Lasik than after PRK. These doctors probably have their conclusions, but there’s hardly any medical proof to endorse this claim. Each of us is unique, therefore healing is a personal process. It can go well, but sometimes it could take very long. We’ll see as we live.

About the Author:
Learn more about refractive surgery for the eyes from this quick laser eye treatments personal guide. Sometimes, poor eye sight improvement can be obtained without surgery, by watching stereograms.

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What To Take Care Of If You Want To Have Eye Laser Surgery

Wednesday, April 29th, 2009
by Tina Grande

Undergoing surgery on eyes is not as easy as doctors say. First of all, we think of our eyes as being very delicate. And that’s the reality. There are so many accidents that can cause, that everybody ought to carefully consider what clinic they choose to treat their sight.

PRK stands for photo refractive keratectomy. The surgery is basically the the cutting of a thin portion from the cornea, resulting in reshaping it. In this way vision defects are corrected, making it possible a glasses-free living for so many persons.

Lasik is working on the same principle as PRK, but the portion removed from the cornea is not the surface one, but a deeper portion. Then the upper portion of cornea is put back in place, permitting the eye to heal the wound.

Lasik and PRK are both operated with excimer lasers. All lasers for PRK or for any other medical surgery must be FDA approved. This is how patients safety is secured. This is how the government is a signal they are preoccupied to have a healthy population.

Myopia and hyperopia can both be settled through either Lasik or PRK surgery. The doctors will examine each candidate individually, then indicating one operation or another. At times, they may even claim that the sufferer should not be undergoing any surgery procedure.

Mistakes in precision surgery could be dangerous, as they may impair the person who suffered the surgery irreversibly. Deciding for the eye surgeon only after informing yourself very well will diminish the danger of meeting the not-so-specialist surgeon.

It has been noticed by some eye surgeons that patients need less recovery days after Lasik than after PRK. However, as nobody made the hard evidence of this fact yet, all we have to say is that there are cases in which one type of surgery is better than the other. This is why we need to go for specialist advice before doing anything.

About the Author:
Learn more about refractive surgery for the eyes from this laser eye treatments overview. Sometimes, how to choose laser treatment specialists can be crucial for your surgery to succeed.

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