Lasik Information
Lasik is a surgical treatment for the correction of impaired vision. This relieves the patients of the burden of wearing glasses and contact lenses. Lasik (laser in situ keratomileusis, for full) is a relatively new procedure started in the last decade. The technique corrects the imperfections of the eye by altering the shape of the cornea using laser technology. It is mainly used for the correction of refractive errors such as myopia, hyperopia, astigmatism and their combinations.
The process of lasik surgery starts with cleaning of the eye. The patient feels no pain, since anesthetic eye drops are applied on the eye. An instrument called a microkeratome is used to create a thin, circular flap in the cornea. The flap is then folded on the hinges and the middle potion of the cornea, called stroma, is revealed. The cornea is reshaped by vaporizing the exposed tissue using the pulses of an excimer laser. This complex procedure is performed accurately using automated tools.
Lasik surgery will take only 10-20 minutes. The patients can rejoin their work even the next day. However, adequate rest is recommended to avoid any complications. More than 95% of the patients are usually satisfied with the results of the treatment. Most of them can achieve 20/20 vision within 6 months. The results of the treatment are permanent. The selection of a qualified ophthalmologist with adequate experience is necessary to achieve the expected results.
A low percentage of the patients experience dry eyes, infection, light sensitivity etc. Patients with certain diseases are not permitted to undertake the surgery. Lasik surgery may not be effective in certain cases such as presbiopia, hyper correction of the cornea etc.
Lasik information is mostly available from health magazines and Internet sites. Books and articles can also provide adequate information. A thorough understanding of the subject will help you take necessary care during the pre and post surgical periods.
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Wavefront-Guided LASIK - The New Frontier
Wavefront-guided LASIK uses Wavefront technology to customize the surgery precisely to your eyes. Traditional LASIK and corrective lenses can correct common vision problems including nearsightedness (myopia), farsightedness (hyperopia), and astigmatism, but cannot address other problems with quality of vision. Higher order aberrations can cause vision problems such as halos, glare, decreased contrast sensitivity, and shadows. These problems normally do not affect visual acuity (how you test on the eye chart) but affect the quality of what you see in real life. Higher order aberrations can actually be exacerbated by traditional LASIK surgery.
So what are higher order aberrations? As they relate to your vision, they are infinitesimal imperfections that create minute changes in the light rays that pass through your eye. These minute changes in the light rays affect the quality of your vision (even with glasses or contact lenses) although you are probably not even aware of the difference. In fact, the impact on your vision may be so minor that it doesn?t even show up in an eye exam.
Even though these imperfections are minute, eliminating them through Wavefront-guided LASIK will make your post LASIK vision so clear and crisp that you will be amazed at the difference. Many people who have Wavefront-guided LASIK can see even better after the procedure than they could with glasses or contacts before the procedure.
Wavefront-guided ablation uses the same technology that has been used to adjust high-powered telescopes for years. During a Wave Scan light is sent into the eye and then measured after it has passed through the visual system. The result is a 3-D map, called a wave print, which pinpoints aberrations and is accurate up to hundredths of a diopter. The map is then used to precisely guide the surgery. Previous methods were only accurate to 0.25 diopter steps.
Higher order aberrations can only be detected during a Wavefront evaluation. Myopia and hyperopia (sphere aberrations) and astigmatism (cylinder aberration) are low order aberrations. They can be safely corrected with traditional refractive surgery.
Not all patients are good candidates for Wavefront. In some cases Wavefront ablations are deeper than traditional refractive surgery, so those with thin corneas may not be eligible. Any type of refractive surgery can increase higher order aberrations. This is why some patients see halos or lose contrast sensitivity after refractive surgery. Wavefront-guided LASIK carries a much lower risk of creating higher order aberrations. In fact, the main advantage of Wavefront-guided LASIK is
Wavefront-guided refractive surgery is more expensive than traditional refractive surgery, but it has many benefits including:
? More likely to achieve 20/20 vision or better (in fact, many patients who have Wavefront-guided LASIK end up with better than 20/20 vision)
? Less likely to lose best-corrected vision
? Less likely to lose vision quality
At the very least you should have Wavefront diagnostics before undergoing any type of refractive surgery, so you know what the risks are and what to expect.
How To Avoid Complications With LASIK Surgery
As with any surgery, LASIK has a few complications. Scientific studies conducted in the late 1990s depicted that a meager 5% of LASIK eye surgeries resulted in some sort of complication. However, expert eye surgeons claim that the complication rate drops well below 1% if the patient is thoroughly examined prior to the surgery, so as to ensure that the procedure is feasible and beneficial.
Though quite rare, complications due to LASIK do occur. The following are some of the frequently reported complications of LASIK eye surgery.
- Dry eye syndrome - Light sensitivity - Halos or glare around light sources at night - Over/under-correction - Ghosts/double vision - Induced astigmatism
LASIK eye surgery involves the cutting of a flap in the cornea, which is lifted for laser re-shaping of the eye. The flap is then replaced to form a type of natural bandage. Complications may arise if the flap is not cut correctly, which may result in an uneven eye surface and a vision defect called irregular astigmatism.
The above stipulated complications may give an impression that LASIK is a risk-prone surgery. However, much to the patient’s relief, LASIK complications can be rectified through laser re-treatments or enhancements of the eye. Furthermore, it is very much a rare exception that a LASIK surgery would cause significant vision deterioration. That is, there have been only a scant few cases that the corrected vision was actually worse than it was before surgery. Such rare cases can be attributed to the eye surgeon’s inexperience and the lack of a through pre-operative examination.
Though LASIK does have potential side effects, all such complications can be averted by opting for an experienced eye surgeon who takes that extra precaution while performing the surgery. The truth is that LASIK is by far the most efficient procedure when it comes to corrective eye surgery. With a minimal complication rate, LASIK is a near risk-free proposition.
About the Author
Nicola Kennedy publishes articles and reports and provides news, information and views about Laser Eye Surgery Complications at Your Lasik Information. http://www.Your-LASIK.info
Copyright Your-LASIK.info All rights reserved. This article may be reprinted in full so long as the resource box and the live links are included intact.
Lasik Eye Surgery - New York?s Contribution To Eye Care
In the case of lasik eye surgery, New York is the place to be. This is because the Big Apple has the most number of lasik procedures performed. It is not too difficult to fathom why this is the case: most people of New York pride themselves when it comes to health and fitness. While this is not to say that the people from other parts of America are not as keen about their health and fitness, it goes without saying that there is something about New Yorkers that places them apart from the rest.
When I say that for lasik eye surgery, New York is the place to be, what are the implications? The implications are quite simple, really. It means that there are more number of lasik facilities available here, and therefore, more choice of facilities and more chances of getting the best care. There are quite a few renowned optometrists who have their practice in New York.
It is easy to assume that since more facilities means more competition, for lasik eye surgery, New York could be the place to go. However, this is not always so. Compared to other states, the prices could be higher in New York. However, this oddity is only because the cost of living in New York is higher than that in other cities. Even then, a thorough search and you could still find a place where you will get good treatment at an affordable price.
Leaving price aside, for lasik eye surgery, New York is the place where you will find the best surgeons. Whichever part of New York you live in, you will find a clinic nearby that provides lasik surgery. To find out where in New York you can get lasik eye surgery done, all you have to do is access the Internet and put a search for ?lasik eye surgery New York.? The search engine will give you a whole list of facilities that perform lasik surgery.
On the Internet, searching for ?lasik eye surgery New York? will also give you, along with the names and URLs of the clinics, the other relevant details, such as the price of the procedure, any special offers available, background information regarding the facility itself, the location of the facility, and a whole lot of other assorted details.
So how do you figure out which facility is the best for lasik eye surgery in New York? As mentioned earlier, you could search the Internet, but the thing about that is all the websites would obviously project their facility as being the best. One good way is taking the opinion of patients who have been to a particular facility. They can give you the best feedback on whether the facility is as good as it claims to be.
Another way to find out which facility is the best for lasik eye surgery in New York is to go through the ratings and reviews the different facilities have been given by medical journals, the FTC, the newspapers, and the media in general. If there is a facility you think is good, find out if there is any history to it. Get detailed information and then make a decision on which facility to opt for. As mentioned earlier, for lasik eye surgery, New York has a large number of facilities, but it is always safer to go the best ones, so you are guaranteed the best procedure and care.
About the Author:
http://www.TheLasikZone.com brings you the latest on Lasik. Lasik is very popular, and we want to bring you the most up to date information online! Be sure to check out our latest information page on the Lasik surgery in New York.
During Lasik Eye Surgery You Are Awake
Many people have heard the term LASIK but do not know what it stands for. The proper interpretation is Laser-Assisted In Situ Keratomileusis The procedure reshapes the cornea which is permanent by using a laser to do the surgery. The procedure is carried out by an ophthalmologist, with the aid of sophisticated computer-controlled equipment.
How the Surgery Works. Before you decide that LASIK surgery is right for you, make sure that you know all the facts, and how they might affect you. Before committing to the surgery patients should look into what lasik is and what it can do for vision. Lasik eye surgery has been big news on the vision front. If you are contemplating LASIK eye surgery, you are not alone. This surgery can help to eliminate your need for glasses or contact lenses.
If you’re like many you were just born with blurred vision, and have had to deal with the hassles of glasses or contacts for a time that is too long to remember. Although nearsightedness can be easily fixed with glasses or contact lenses (when not too severe), many people don’t like to hassle with either one. LASIK laser eye surgery helps with the shaping of the cornea; once the cornea is re-shaped it will help in the reliance of wearing contacts or glasses.
Many people get the corrective surgery because they just don’t want to wear glasses or contacts anymore, many people have been wearing them their whole lives. As an instance of Snellen measurement, people with 20/40 vision can see clearly at 20 feet what people with 20/20 vision can see clearly at 40 feet.
It is gravely necessary to choose the best surgeon available. Experience is what counts the most, so choose a surgeon with plentiful experience. If so, then you need to be sure that you know how to pick the right surgeon for you and what to expect during your surgery. You can easily negotiate with your surgeon about spreading the costs over a specific period.
Before you can get the surgery you will need to go for a surgical consultation, they will measure your eyes take pictures to make sure you are suited for the surgery, if everything checks out ok the doctor will let you know if you are a candidate for surgery.
LASIK is performed by placing a ring over the cornea, this will be an applied using high pressure to lift the cornea off the eye, and this may feel slightly painful. These tests are designed to let the surgeon know how much work the cornea needs to have done. LASIK eye surgery involves cutting a flap of the corneal tissue with a hinge being left at one end of the flap. Since the risk is great after surgery the patient must go home and wear the eye patches and not touch the eyes, if the flap of the eye moves before healing the can give way to infection or not seeing clearly.
Before going for LASIK, have your surgeon explain to you what these risks are. There are both benefits and risks to this surgery, and you should be aware of all of them before you decide to have the treatment. You should also know the risks as well as the costs of the procedures. When getting surgery there is always risks and benefits, make sure you read up on the procedures and do research so you understand what is about to happen and how it will affect your eyesight.
The cost depends on several factors and varies from one provider to another. The cost of LASIK continues to come down in price.
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David Marc Fishman is the owner of Tipsquad Ask an expert about cooking. Get discounts on appliances at Priceriot |
During Lasik Eye Surgery You Are Awake
Many people have heard the term LASIK but do not know what it stands for. The proper interpretation is Laser-Assisted In Situ Keratomileusis The procedure reshapes the cornea which is permanent by using a laser to do the surgery. The procedure is carried out by an ophthalmologist, with the aid of sophisticated computer-controlled equipment.
How the Surgery Works. Before you decide that LASIK surgery is right for you, make sure that you know all the facts, and how they might affect you. Before committing to the surgery patients should look into what lasik is and what it can do for vision. Lasik eye surgery has been big news on the vision front. If you are contemplating LASIK eye surgery, you are not alone. This surgery can help to eliminate your need for glasses or contact lenses.
If you’re like many you were just born with blurred vision, and have had to deal with the hassles of glasses or contacts for a time that is too long to remember. Although nearsightedness can be easily fixed with glasses or contact lenses (when not too severe), many people don’t like to hassle with either one. LASIK laser eye surgery helps with the shaping of the cornea; once the cornea is re-shaped it will help in the reliance of wearing contacts or glasses.
Many people get the corrective surgery because they just don’t want to wear glasses or contacts anymore, many people have been wearing them their whole lives. As an instance of Snellen measurement, people with 20/40 vision can see clearly at 20 feet what people with 20/20 vision can see clearly at 40 feet.
It is gravely necessary to choose the best surgeon available. Experience is what counts the most, so choose a surgeon with plentiful experience. If so, then you need to be sure that you know how to pick the right surgeon for you and what to expect during your surgery. You can easily negotiate with your surgeon about spreading the costs over a specific period.
Before you can get the surgery you will need to go for a surgical consultation, they will measure your eyes take pictures to make sure you are suited for the surgery, if everything checks out ok the doctor will let you know if you are a candidate for surgery.
LASIK is performed by placing a ring over the cornea, this will be an applied using high pressure to lift the cornea off the eye, and this may feel slightly painful. These tests are designed to let the surgeon know how much work the cornea needs to have done. LASIK eye surgery involves cutting a flap of the corneal tissue with a hinge being left at one end of the flap. Since the risk is great after surgery the patient must go home and wear the eye patches and not touch the eyes, if the flap of the eye moves before healing the can give way to infection or not seeing clearly.
Before going for LASIK, have your surgeon explain to you what these risks are. There are both benefits and risks to this surgery, and you should be aware of all of them before you decide to have the treatment. You should also know the risks as well as the costs of the procedures. When getting surgery there is always risks and benefits, make sure you read up on the procedures and do research so you understand what is about to happen and how it will affect your eyesight.
The cost depends on several factors and varies from one provider to another. The cost of LASIK continues to come down in price.
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David Marc Fishman is the owner of Tipsquad Ask an expert about cooking. Get discounts on appliances at Priceriot |
LASIK, The Modern Way To Correct Your Vision
LASIK or Laser-Assisted In Situ Keratomileusis, is a surgical procedure intended to correct refractive errors or vision errors.
Some examples of vision errors are nearsightedness or myopia; farsightedness or hyperopia; and, astigmatism or distorted vision caused by irregularities in the cornea.
Like in any other surgery, LASIK entails some risks. Thus, before you decide to undergo this modern way of correcting vision problems, you may need to discuss in length with your doctor various issues like pre- and post-operative care, risks and possible outcome.
Your medical condition and visual requirements in your work may also be a consideration you need to discuss with your doctor. Even before that, you may need to check with your company administrator if you may be allowed to undergo LASIK eye surgery, there may be some restrictions in your company, which you need to know before discussing LASIK with your doctor.
If your doctor decides, based on your condition and other factors affecting your life, that LASIK is not for you, there are other ways to correct vision problems. So, you need not despair.
Additionally, if your health condition and employment will not allow that you undergo laser surgeries like LASIK, you may opt to wear eye glasses or contact lenses instead.
Do not allow your doctor, a friend or a family member to pressure you into undergoing LASIK surgery. It may help if you can discuss with your doctor the following:
Is LASIK good for you? Risks of the surgery Before, during and after the procedure
IS LASIK GOOD FOR YOU?
LASIK may be good for you if you are ready to face consequences such as complications and possible risks of the procedure. Some people opt not to undergo LASIK because of the risks involved.
You may undergo LASIK surgery if it will not jeopardize your career. Some jobs prohibit refractive procedures, thus it is a good recommendation that you check with your employer to see if you may be allowed to undergo the procedure.
LASIK is quite an expensive procedure; if you can afford it, then, by all means undergo the procedure after considering the risks involved.
LASIK may be performed if you are 18 years old and above, no doctor will perform the surgery to anyone below 18 years old.
RISK FACTORS INVOLVED IN LASIK SURGERY.
Patients may loose some lines of vision. Because of the procedure, you may develop vision problems that eyeglasses, contact lenses or surgery may not be able to correct. This is a major risk, which you may need to consider.
Patient may develop severe dry eye syndrome. As a result of the surgery, the eye may not be able to produce enough tears to keep the eye moist and comfortable.
For farsighted patients, good result of the procedure may diminish as you age.
Monovision surgery may result in poorer quality vision and a decrease of depth perception. Monovision is where you use one eye to see images nearby and the other eye to see far images. This may result in poor quality vision that may be permanent.
BEFORE, DURING AND AFTER THE PROCEDURE
If you wear contact lenses, you may need to stop wearing them before your baseline evaluation. If you are a hard lens user, you may need to stop wearing them at least four weeks before the baseline evaluation.
Stop using creams, lotions, makeup and perfumes the day before the procedure.
During the surgery, you may need to arrange for somebody to drive you to the doctor and to bring you home after the surgery.
You may also need somebody to assist you because you will feel discomfort in the eye area such as burning or itching. Mild pain may also be present and if you want, you may ask your doctor for mild pain reliever.
24 to 48 hours after the surgery, you may need to visit your doctor. Regular check-ups may also be necessary during the first six months after the procedure.
During this period, your vision may not still be stable but it will wear off in time.
Finally, after considering the risks and the possible outcome of the procedure, you may want to think it over if LASIK surgery is what you want. Do not allow external pressure to force you into undergoing the procedure, you need to decide for yourself after considering all the factors mentioned.
About the Author
Shannon Brown is the editor of EasyLasik.com. This site caters to Lasik
information. You can visit the site at: http://www.EasyLasik.com.
What To Look For In A Lasik Surgeon And Lasik Surgery Facility
Compared to brain or heart operations, of course, LASIK surgery is not particularly difficult or risky. But a negative outcome can affect your life tremendously, since the procedure involves crucial sensory organs, the eyes. Therefore, you must seek and choose your eye surgeon with the same diligence you would apply to finding a heart specialist.
The LASIK procedure is a kind of ?refractive surgery,? and individual doctors, clinics and even major medical centers are now advertising this specialty on television and radio, and in magazines and newspapers. Many of these ads are quite informative, contain compelling information and end with a strong pitch and a ?bargain? price. But reading ads and comparing prices is just the beginning of this decision process.
Surgeons associated with academic medical centers are somewhat more likely to keep up with current information in their fields. If they are isolated in their clinics or offices, they may not have the constant exposure to new procedures and developments. Being in good standing with the leading teaching hospitals is an additional positive reference for a LASIK surgeon, while additional assurance is provided by choosing a doctor who is a Fellow of the American College of Surgeons, as the credentialing process is quite thorough.
The same due diligence should be applied to your research on the clinic, hospital or outpatient surgery center where the procedure is performed. You can accumulate a great deal of information from the Internet, from your own family physician and from private and governmental watchdog groups. However, it is probably best to focus your search on the doctor and then the surgery center, in that order.
For one thing, once you develop a trusting relationship with your LASIK surgeon, he or she can then inform you about the location where the procedure will take place. You can then do some research to validate the recommendation. The most valuable information you assemble will be from people and organizations with reputations for trustworthiness and honesty, and you may wish to check with the American Academy of Ophthalmology for detailed information about a particular surgeon’s standing among his peers.
You should also go ahead and call the various refractive surgery centers where you live, or as far as you are willing to travel for the procedure. Many are in the yellow pages, and can easily be found with a targeted Internet search on a site like DocShop.com. The bottom line is, this is your eyesight you are dealing with and you cannot be too careful. Confirm all claims you hear or read about the LASIK surgery, or a potential surgeon, with independent sources.
When you begin to calculate your LASIK cost figures, you may find that there is a price discrepancy among certain doctors and/or LASIK surgery centers. Using various resources, including DocShop.com, you can gather enough information to determine if the additional expense of one over another is due to newer technology, better facilities, more esteemed surgeons?or is simply overpriced. These decisions require careful and complete consideration of all pertinent information, and it never hurts to involve trusted advisers among family and friends in the LASIK surgery process.
Wavefront LASIK Surgery - How it Differs From Conventional LASIK
First, what?s in common?
Wavefront LASIK (also called Custom LASIK), and traditional LASIK both:
? Use an excimer laser
? Create a tiny flap on the corneal surface to expose the underlying tissue to be worked on
? Modify the shape of the cornea by vaporizing tiny pieces that were impairing your vision
? Are extremely precise
Advantages of Wavefront (Custom) LASIK It provides particularly precise information on how your vision is impaired. Custom LASIK measures each eye with a special laser, using wavefront technology, and creates a 3-D map of the eye. This is translated by the Wavefront system into mathematical information that?s used to guide the laser in correcting the problems. Two types of vision problems
1. Lower order aberrations ? nearsightedness, farsightedness and astigmatism. These are refractive errors and are correctable by traditional LASIK surgery.
2. Higher order aberrations (HOA) ? halos around lights, impaired night vision, starbursts etc. These are not refractive errors and not correctable by traditional LASIK, but can be measured and corrected by Wavefront LASIK. The HOAs are sometimes created by traditional LASIK, and although there are still some who argue that Wavefront LASIK can also create them, most refractive surgeons agree that it?s much less likely to create them than traditional LASIK. About 75% of refractive surgeons now use Custom LASIK. Amount vs. quality of vision Amount ? A person with 20/20 vision is said to have perfect eyesight. That?s an assessment of the person?s AMOUNT of vision, or how MUCH he sees. Impairment of our amount of vision is brought about by lower order aberrations. Quality ? How WELL we see is determined by the presence or absense of higher order aberrations. So if we have impaired contrast sensitivity and can?t see very well at night, or we have glare and halos around lights, these defects can be both measured and treated by Wavefront LASIK. The Wavefront LASIK procedure
? The eye surgeon sends a light ray into your eye
? The light is reflected back off the retina (interior surface of the back of the eye, like the film in a camera) to the Wavefront system
? The system arranges this modified light into a pattern of all your vision aberrations, lower and higher
? It displays this pattern on its computer monitor as a 3-D map of each eye, the wavefront map
? When your eye surgeon applies the laser treatment to your eyes, he uses this same information to guide the laser.
Unique to you This all results in a vision remedy that?s unique to you. Unlike glasses and contact lenses, which are remedies that come according to prescriptions that millions of other people also have, this treatment is entirely customized. That?s another way of saying that it?s extremely precise, so precise that nobody else would benefit from it. They?d all have their own 3-D maps. Pre-testing with traditional LASIK Before traditional LASIK, there are also tests done to pinpoint the corneal problems. They?re done using a variety of devices which each give a different kind of information. For example:
? The photopter ? you look through various pairs of lenses and tell the eye doctor which set gives you the best clarity
? The corneal topographer ? collects reflected infra-red light from your eyes and creates a digital map of each eye
? Fluoracaine or some similar dye ? stains the corneal surface so that your eye doctor can see more clearly where the irregularities are
These tests give a lot of information, but not to the precise detail of the wavefront technology. They also take longer. Wavefront diagnostic
If you?re considering a LASIK procedure, whether LASEK, PRK, or Epi-Lasik, or traditional LASIK, you can have a wavefront diagnostic done first. This will indicate the severity of any HOAs you may have. This information in turn will guide your eye surgeon in recommending the best procedure for you.
Is LASEK Better than LASIK Eye Surgery?
LASIK surgery has been very popular among people who wear contact lenses or glasses because it has been proved to successfully correct common vision problems (myopia or nearsightedness, hyperopia or farsigtedness, and astigmatism) in most of LASIK patients. There have been many studies conducted on LASIK outcomes and shows that at least 90% of LASIK patients achieve 20/40 or better visual acuity after LASIK surgery and over 85% of LASIK patients achieve 20/20 or 20/25.
However, there is still a relatively new eye surgery that is almost similar to PRK (Photo Refractive Keratectomy), an eye surgery that has existed before LASIK. It is the LASEK eye surgery. LASEK stands for Laser Epithelial Keratomileusis. LASEK procedure is developed to reduce the risk of complications after LASIK surgery, that are usually occur when the corneal flap is not cut ideally during LASIK surgery - too thick, too thin, too small or big in diameter.
In LASIK surgery, a hinged corneal flap is cut by laser or blade (microkeratome) and then laser beams are used to remove the underlying corneal tissue and flap is repositioned. But in LASEK surgery, there is no hinged corneal flap formed. Instead, the surgeon will use a finer blade (trephine) and alcohol solution to loosen the edges of epithelium. After 30 seconds, a tiny hoe is used to lift the edge of epithelium and gently fold it back out of the way to allow laser beams to reshape the cornea. Then, the epithelial flap is replaced back to its position by using a kind of spatula.
The outcomes of LASEK surgery are similar from LASIK, but according to some LASEK doctors, the recovery time with LASEK is a little bit longer than LASIK. But of course, it may vary from one individual to another.
LASEK surgery is most performed on people that has too thin or too flat cornea for LASIK. So, if your doctor is suggesting you a LASEK procedure instead of LASIK, you may ask him the reason.
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Lina Lee is a successful webmaster and publisher of LASIKWeb.info, a website that provides complete guide and infomation about LASIK Surgery and Custom LASIK. |
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