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Laser Eye Surgery Tips - Which Laser Is The Best

By: Michelle Spencer

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There are several different excimer lasers being used today for various types of laser eye surgery, and that number is growing quickly. Just like in the automobile industry, new models are always in the pipeline, as are refinements of current machines. Each laser system is complicated and each has its own unique twists, advantages, and disadvantages. There is probably one question on your mind. Which laser is the best?

Which car is the best? Suppose that you've decided to buy a new car, but know very little about mechanics. And just to make sure the analogy is fair, assume that money is not an issue. Pretend this is fantasyland. You can have any car you want. Which car would you choose? What is the right answer? Is there a right answer? What is your answer? If you decided on a black Porsche 911, is that any better than a white Mercedes 550 SL? Or a red Dodge Viper? Or a black Hummer? The answer is that there is no right answer.

There's good and bad in each vehicle. The choice depends on you, the driver. Now suppose you won't be doing the driving. (If you can afford these cars, surely you can afford a chauffeur.) You're just a terrified passenger who needs to get from point A to point B. Now what car would you choose?

To make that decision, it is probably not necessary to know the gear ratios or the warranty package. It is important to feel comfortable, however, and it is important to know that your driver is comfortable with their machine. It would be reassuring to know that the vehicle is relatively new and well maintained, and that previous passengers have been happy with their journey.

Beyond that, the details are not very important. The fortunate fact is that most cars will get you where you need to go. Consequently, your time may be better spent picking the right chauffeur. The same principles apply to lasers.

Having said that, it is still in your best interests to know about the options on the market. In general, there are the first generation lasers, which are the grandfathers in the field. The newer second and third generation machines are somewhat more sophisticated.

In terms of the hardware, there are diaphragm delivery systems which shoot the laser in a large enough spot to cover the entire treatment zone. Scanning delivery systems use a small-area beam which oscillates back and forth across the treatment zone, ablating tissue layer by layer. Eye tracking devices are available in newer models to reduce the risk of decentration.

Software options include algorithms for myopia, hyperopia, and astigmatism, as well as special modifications known as pretreatment, multizone, and multipass which were designed to improve the outcome.

Used Lasers

If used cars are resold, what happens to used lasers? They, too, are resold. Not everyone can afford a brand new machine. Is this a problem? That depends. Is a 1997 BMW much different from a 1996 model? Probably not, but a 2006 machine may be much different than a 1996 version.

Although a decision should not be made on age alone, all things being equal, perhaps a new laser is preferable to an older model. The same thing applies to cars, computers, and for a few people, spouses. Still, when making an airline reservation, you do not usually ask about the age of your airplane. You rely on people who know about these things to make responsible decisions. Once again, it comes down to confidence in the surgeon, not only to perform surgery, but also to select a safe, effective laser.

Do you know enough about laser eye surgery to be able to choose which option is best for you? If you're not sure, check out these reviews on the different types of corrective and lasik eye surgery and the risks and implications of each. There's also helpful info on researching the right laser eye center for your operation.

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