How Safe is Laser Eye Surgery

October 9th, 2008

Tired of hunting around for those pesky lost spectacles? Well laser eye surgery might be the answer to your problem because it can rectify visual defects rapidly and easily.

There are two different types of corrective eye surgery by use of laser, PRK and LASIK. PRK differs from the latter because it involves a surface ablation procedure. This technique removes the outer layer of the cornea, or epithelium. Think of it rather as scraping away the outer layer of cells, rather like hosing away leaves on an autumn day. In LASIK, on the other hand, the laser is used to cut a flap in the cornea. These techniques might make it easier to read the newspaper of search for those missing car keys, but they might not suit everybody! So before embarking on what might be an expensive bout of surgery that causes you risky complications it pays to ask your ophthalmologist a number of searching questions, and don’t let the specialist get away with it if you receive a series of evasive answers.

First you need to know how effective your eye doctor thinks the procedure will be in your own particular case. Then how accurate will the re-shaping, or mapping of the eyeball be. You always want a global figure that will probably be a percentage of the number of patients who have undergone corrective eye surgery without having to resort to a second or subsequent intervention. In other words you want to be re-assured that the surgeon can get it right the first time. Of course another key question is whether or not there are side effects and what these could be. If your eye specialist is up to speed, you will have a body of evidence at your finger tips to help you make the decision of whether to proceed or not.

How effective is laser eye surgery? Sometimes expectations are not met as people can experience a halo effect, find glare particularly disturbing and lose the ability to see clearly in the dark. All of that can have serious effects on night driving for example! Moreover, experts note that 20/20 vision from laser corrected surgery may differ considerably from that experienced by the use of corrective lenses. Sometimes it might just be better and simpler to stick with the eyeglasses.

However, like everything in life you get what you pay for. It seems the more expensive the technique the less likelihood there is of risk and possible side effects. So the best advice one can give for those considering corrective eye surgery by laser is to research the subject extensively before embarking on the treatment and don’t skimp on the cost!

Interested in this subject? Try this link for more of the same.

http://www.eyesurgeryglance.com

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See Why PRK Photorefractive Keratectomy Laser Eye Surgery Rocks These Days

July 25th, 2008

Photorefractive Keratectomy is actually famous procedure of laser eye surgery. It is also called PRK and it uses laser to reshape the cornea. PRK is very useful in reshaping the cornea to get better vision. Most of the patients receive the noticeable differences in their vision and no need to wear glasses or contact lenses anymore.

In fact, PRK is not the same as LASIK surgery, because it shapes the top of the cornea using laser, rather than underneath it. It does not need to slice the top of the cornea to form a hinged flap like LASIK.

However, there is one drawback which is the PRK patients usually feel more pain than those trying LASIK surgery, and the discomfort may keep on for quite a few days. Their eyes may feel irritated and watery, which may prolong the recovery period. Also, PRK cannot give you instant vision improvement. Most of the time, 20/20 vision may not be achieved for about 1-2 months. Also, there are no guarantees that perfect vision will be achieved, and patients sometims may complain that they can see some halos around image.

In fact, PRK and LASIK eye surgery usually cost more or less the same. The eye surgeon need to have a full medical record and take a few of eye tests to make sure the patient is in good shape and their eyes are ok for laser eye surgery. Then a procedure date will be arranged.

The real laser procedures are a bit different. In PRK, the patients are needed a local anesthesia. Once it shows some effect, laser beams will be pulsed on the top of the cornea. This keeps on until the cornea is reshaped. A bandage which looks like the contact lens, will be placed on the eyes, and keep it untouched a few days to faster the healing process. A number of follow-up checks after the eye surgeon are scheduled over 2-3 months in order to ensure it is in the right progress.

It may take many weeks to improve your vision and you will have alternate clear and blurry vision. Some of the patients will need to wear glasses, especially at night. It is highly recommended to use eye drops for keeping the eyes moist and reduce the infection risk. Also, it is not suitable for patients to drive for the first several weeks after the surgery. It will take around 6 weeks or more to get the best vision.

It is really essential for you to choose an ophthalmologist who is professional and very experienced in PRK laser eye surgery. Try to ask friends and family for recommendation, visit many candidates, and always read all the related documents to ensure you know all the prices involved in the surgery. It is a good idea to avoid the junior level practitioners offering cheap prices. Do your own research, and you will be satisfied with the vision result.

Rashme Wong is a successful Internet Marketer and publisher of Lasiksux.com. She provides more eye surgery solutions, contact lens information and Photorefractive Keratectomy laser eye surgery that you can search and learn on her website.

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Advanced Surface Ablation

July 3rd, 2008

In patients with corneal thickness below a certain minimum, performing LASIK would be unwise, because the “foundation” may not go back to its original stability. Our colleagues from around the world, agree on when not to do LASIK, like when the cornea is very steep or very flat. In those cases we feel strongly that advanced surface ablation or (PRK) would be the preferred procedure.

This information has been shared at seminars, meetings and now, even on webmail. This procedure involves sculpting the cornea at the surface. This is done by removing the epithelium, (the film-like protective outer layer of the cornea) using a special instrument called Amoils epithelial scrubber. The underlying Bowman’s membrane (the micro-thin second tissue layer of the cornea that lies just below the epithelium, or outer layer) is exposed.

Laser pulses with variable spot size and variable repetition rate are applied in a blended large zone. Mitomycin C may be applied if indicated. Chilled BSS is used to cool the cornea. A bandage soft contact lens, is placed afterwards to maintain comfort in the eye. Oral vitamin C along with steroidal and non-steroidal, anti-inflammatory drops are prescribed. Patients are asked to wear dark U.V. protective glasses.

Although recovery is usually longer than with LASIK, patients are very happy with their vision. In the early days, PRK was very painful and vision was not good. With dvanced surface ablation there is minimal pain and most patients resume work in 3-4 days.

Dr. Khanna is an Internationally recognized top LASIK and refractive vision care specialist. Dr. Khanna performs the safest and most technologically advanced methods of refractive laser surgery, including the ultra precise WavePrint, 3D ActiveTrak and Variable Spot Scanning used to correct near-sightedness, far-sightedness and astigmatisms. Please see http://www.khannainstitute.com/prk.html

His offices are located at Santa Monica and Westlake Village in Southern California. He does surgery on patients from all over the United States.For further questions feel free to email lasik@khannainstitute.com

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