Posts Tagged ‘lasik procedure’
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.
One of the most common fear, both when it comes to the Lasik surgery and any operation in general is the fear of pain during and after the surgery. When a Lasik surgery is performed the eye is applied with numbing drops. The patient also receives a mild sedative so they can relax and feel comfortable. So even though you may feel a minor pressure to the eye, it is relatively pain free
The surgeon does use a laser in the eye to help reshape the cornea during the Lasik procedure. Many folks are worried about the laser being shone directly into the eye, or that they might look away and, due to this, develop a serious complication with their eyes and the Lasik laser beam effects. In actuality, the laser is only active for ten to fifteen seconds for each eye, and the Lasik machine has a tracking system that allows the beam to be on only when the eye is in the correct position.
Another general fear for people contemplating a medical procedure is fear of “the scalpel”. Any Lasik procedure uses only a very small microkeratome blade to approach the eye, or some more recent Lasik innovations have the laser itself created the flap and avoid using any hard surface at all. There is no reason to be concerned about a scalpel, for the Lasik physician does not use one.
Many wonder about the horror stories they hear about this or any other operation, and wonder about serious consequences like going blind. According the government statistics taken by the FDA, there are no reported cases of blindness due to a Lasik operation.
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 fact that you are awake and your eyes are open during the operation bothers you, just remember that you are given a mild sedative and your eyes will be dripped with numbing drops.
Is it more the thought about the Lasik physician’s hand close to the eye that bothers you? Then just think about that your eyes will be applied with drops that make your vision black out for the ten to fifteen seconds the operation takes.
Martin Elmer is writing about eye surgery in Laser oejenoperation. You can read about LASIK, LASEK, LASEK, Wavefront and Aspheric treatment in Grøn stær.
Article Source:http://www.articlesbase.com/vision-articles/why-you-do-not-have-to-fear-a-lasik-surgery-1676648.html
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As one of the laser vision correction surgeries, Lasik is now commonly applied to address some vision problems. Lasik can always provide a high success rate. What’s the most significant, vision correction from Lasik is permanent so that eyeglasses or contact lenses can be eliminated after the surgery. Most people are attracted by this benefit from Lasik. However, they may not be clear of the detailed process of the surgery.
A lot of factors play a role during a Lasik procedure, including the exact vision problem, skills and experience of the surgeon. The time of the process may slightly vary from one surgeon to another. But Lasik typically costs only five minutes. Before performing the procedure, the surgeon will apply a moderate sedative to the patients on an oral basis.
In addition, the patient will be given anesthetizing eye drops. In this way, no infliction will occur in the patient during the procedure. Only one eye will be treated at a time. The doctor will ask the patient to lie down on the operating table and set the eye below the laser. During the procedure, the eyelids should be kept open, because the surgeon needs to cut a corneal flap.
Before cutting the flap, the surgeon will mark the cornea in order to figure out the flap to be cut. This flap will be marked using an ink marker. The flap is actually very thin on the top of the eye. After the creation of the flap, a laser will be used to reshape the corneal surface.
The laser used to reshape the cornea should be precisely guided by a special computer, which aligns the laser to the exact prescription of the patient. In addition, a microscope is used to monitor the motions of the eye, which stares at a target light during the procedure.
It is quite necessary for a patient to ask someone else to drive him home. The other eye should be treated with another Lasik after a few days.
More related articles:
·A comparison between 30-day contact lenses and LASIK
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There have been five major advances in LASIK since it was first invented:
1. The use of eye trackers – The first LASIK procedures required the patient to fixate on a light and that was what was used to center the treatment. The invention of eye tracker technology allows the laser to be programmed to define the location of the pupil and when the treatment is started even if the eye moves, the laser stays centered on the pupil which gives treatments that are correctly centered over the optical portion of the eye.
2. Small spot scanning lasers – The first lasers and ones still in use today use a “broad beam” where the treatment laser beam is as large as the optical zone being treated and astigmatism is corrected by varying the shape of this beam. Although this is effective, there are limitations to the types of shapes that can be created, and the quality of the ablation is limited to the quality of the laser beam. Newer lasers use small scanning spots to shape the front of the eye, and with much lower energy per laser pulse.
3. Wavefront optimized ablations – Originally LASIK was done with a mathematical model to flatten the center of the cornea to correct the refractive error. It was learned that this creates halos, glare, and other optical aberrations that are unwanted, especially in patients with larger pupils. The newer lasers can correct the refractive error but maintain a more natural or prolate shape due to more advanced algorithms for the correction.
4. All laser LASIK – All laser LASIK was initially done using a microkeratome that employs a disposable razor blade to cut the corneal flap, which is the first step in traditional LASIK. By using a femtosecond laser, Intralase, and then others were able to create a flap using a laser which is safer, more predictable, and gives more reproducible results. The razor portion is still used by many centers today, but is the cause of most of the risks of the LASIK procedure.
5. Thin flap LASIK – Initially all LASIK was done with a flap of about 180 microns. This is about 20% of the thickness of the structural cornea (the epithelial skin not counted) in most cases and the thickness was unpredictable due to use of the blade (see reason 4 above). Sometimes the flap was over 200 microns. This can weaken the cornea and lead to complications. The all laser method can make thinner flaps, and over time doctors have moved to “thin flap LASIK” with flaps of about 100 microns and in some cases 90 microns which is half as thick as the original flaps.
BONUS IMPROVEMENT: Although not technically a change in Denver LASIK itself, the diagnostic capabilities have improved since the early days of LASIK making the imaging of the cornea more robust with technologies such as OCT, Wavefront analysis, and posterior surface topography. All of these changes have contributed to making an improvement in LASIK. Recently we have begun to look at corneal hysteresis (CH) which is a measure of corneal strength.
Dr. Dishler is the first doctor to perform LASIK in Colorado, the first doctor to offer blade free LASIK in Colorado, and is a consultant, lecturer, and inventor. He is involved with several FDA studies and answers questions related to laser vision correction online.
Article Source:http://www.articlesbase.com/vision-articles/the-five-most-important-improvements-in-lasik-since-it-was-invented-1514807.html
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Your eyes are one of your most important senses. Communicating a wealth of information to your brain, you rely on them to perform a number of essential tasks, like detecting danger and finding sustenance. However, according to research, nearly two thirds of the UK adult population wears glasses or contact lenses. Not only that, but by the time people reach their 60s, 90 percent will require some form of corrective vision.
Making the most of your eyes by looking after them properly, therefore, is of utmost importance. Regular eye tests from a young age are vital and will significantly help to track any changes in your vision, as well as identify problems like short- or long-sightedness early on. Additionally, eye examinations can detect a wide range of other issues, such as diabetes and high blood pressure.
Thanks to advancements in technology, many people who experience vision problems now have the option to permanently correct their eyesight, thus removing the need to wear glasses or contact lenses. In fact, utilising the latest laser technologies, a number of treatments have sprung up in the last few years, which are serving to help millions of people correct their sight.
Having been carried out on more than 22 million individuals worldwide, LASIK (Laser-Assisted-In-Situ-Keratomileusis) is the most common form of eye surgery available. Helping to improve many cases of short- and long-sightedness, as well as astigmatism, it is a relatively non-invasive treatment lasting for approximately 10 minutes.
Using an excimer laser, the optician can reshape the surface of the eye, or if required, both eyes at the same time. More often than not, people notice a significant improvement in their vision just a few hours after the procedure and can usually return to work or drive again after 48 hours.
In comparison to other forms of eye surgery, many patients report experiencing less discomfort after the LASIK procedure has been carried out. Additionally, because it does not remove the epithelium, like LASEK (Laser-Assisted-Epithelia-Keratomileusis) surgery, for example, the eye heals a lot more naturally.
Before the treatment is carried out, you will need to find a reputable optician and schedule a consultation. The internet provides a wealth of information on the subject and a quick search will see you find a range of facts on the procedure, as well as a number of different opticians. After that, you can then discuss with your eye care specialist whether or not the surgery is right for you.
The health of your eyes is crucial. Consequently, it is important to make sure that you care for them properly. However, if you do experience difficulties with your sight, there are many things that can be done to help it, such as LASIK eye surgery. As a result, you can then focus on the more fun things in life.
Adam Singleton writes for a digital marketing agency. This article has been commissioned by a client of said agency. This article is not designed to promote, but should be considered professional content.
Article Source:http://www.articlesbase.com/vision-articles/proper-eye-care-essential-for-healthy-sight-1402175.html