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Blepharitis

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WAVEFRONT / TECHNOLOGY

Wavefront technology customizes
the vision corrections to each person’s
unique eye, and provide the best vision possible.

LASIK/PRK | INTRALASE | ADVANCED CUSTOMVUE WAVEFRONT

What is Wavefront?

Wavefront optics is the science of measuring and correcting the distortions in any optical system. All telescopes, microscopes, and binoculars have these distortions in them. Some telescopes, such as the

Hubble Space Telescope, have ways to correct for distortions to give us a clearer picture of the universe.

How does this relate to the eye?

The eye has imperfections. Some are more important and lead to very blurred vision. These imperfections are called refractive errors and include near-sightedness, farsightedness and astigmatism. They can be corrected by glasses, contact lenses or laser surgery. There are also minor imperfections (higher order aberrations) that are less important, but do cause some blurring under certain conditions.

For example, even people with perfect vision will notice blurring. While driving at night, we see headlights of oncoming cars. They are not a perfectly round circle with a sharp edge. Often there is flaring of the light giving a starburst effect. This distortion is due to the higher order aberrations of the eye. Until recently, there was no way to measure, or correct these minor aberrations. They represent the unique fingerprint that every eye has. Laser technology has now advanced to the point where the refractive errors (major aberrations) and also these minor aberrations can be treated by removing microscopic amounts of cornea. This is called "Wavefront Laser Vision Correction". It can be applied during LASIK or PRK procedures.

What are the advantages of Wavefront Laser Vision Correction surgery?

All laser vision corrections treat the refractive errors and classic LASIK has advanced to such an extent that results are excellent.

Most individuals, however, may benefit from Wavefront treatment, a more sophisticated, customized form of laser vision correction.

Some people who would want to consider Wavefront correction include:

	People that require the very best possible vision. Some examples are pilots, professional athletes, and microsurgeons.
	People who like to have the latest form of treatment. Just like with computers, the field of vision correction is advancing all the time. Wavefront is the present and future. Some people like to have the most current system or the fastest speed processor in their computer. So too, many people are willing to pay the premium to have the most up to date, advanced treatment.
	People with lots of aberrations. There are individuals who have much more natural minor aberration. These patients may benefit from the fully customizable wavefront laser vision correction.
	People with higher prescriptions who wish to have LASIK. Laser vision corrections remove small amounts of cornea. Experience has shown us that we should not remove too much of the cornea. Wavefront Laser treatments are completely customizable for each individual, and can be adjusted to reduce the amount of tissue that must be removed. This is not only safer, but may reserve enough tissue that if a touch up is needed, it too can be performed. In addition, larger laser treatments cause a greater change in the optical power of the eye. Wavefront Laser treatments are designed to smooth out the area between the treated part and the un-treated part of the cornea. This usually leads to better vision.
	People with large pupils (the dark black opening in the center of the eye) that become very large under darkened conditions. No current laser is able to treat the entire cornea. In fact, only the central part of the cornea is removed during any laser vision procedure such as PRK or LASIK. Generally, the area treated covers the whole pupil. In the dark, our pupils get larger. Under these conditions, one may be looking through the central, lasered part of the cornea. As well, some light may be entering through the edge of the cornea that has not been lasered. This may lead to some blurring that may be more obvious in the dark.
	People who have undergone laser vision correction previously, and are having difficulties. The older lasers, some ten years ago, treated much smaller areas on the cornea. A very small number of patients experienced problems due to these small zones of treatment. Wavefront laser has the ability to correct these and other problems.

How do I know whether to undergo "Standard" or "Wavefront" laser vision correction?

A complete exam including wavefront measurement and discussion with an expert who understands wavefront technology and your individual eyes is needed to know which is best for you. We can help you with the process so you can make the best decision for you, your eyes and your vision.

Why is Wavefront laser vision correction more expensive?

Doing a Wavefront laser vision correction requires more expertise and more costly equipment. This means that your corneal surgeon and staff must spend more time in planning and performing the treatment.

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