Tuesday 15 December 2009

After Lasik

The Lasik surgery is designed to correct the vision of its patients. The most vital part of the surgery is the correlation between the information related to the patients’ visual system and the Lasik laser. The flap modeling by cutting patients’ cornea is designed to meet patients’ needs. This brand new technology is the best technique to gather all this crucial information.

Introducing the Wavefront Technology

Wavefront is a technology aiming at providing a good measure of refraction at various spots belonging to our eyes as a light source is traversing it. The process outputs a map of artifacts which acts as a fingerprint of patients’ eye due to the uniqueness to the patients.

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Refraction can be affected by some conditions related to the cornea. For instance high-order aberrations have always been related to astigmatism. A correction of these aberrations will definitely improve the outcome of the surgery. Results such as an improvement factor of 20/20 can then be achieved. Wavelength technology reduces the possibility of losing best-corrected vision or visual quality as well as night vision. Indeed, clinical surveys clearly revealed that about 80% of Lasik patients recorded a 20/20 vision.

Moreover, Wavefront technology can be used to reveal good candidates of Lasik surgery. For bad Lasik candidates, the surgery can decrease existing visual problems.

Wavefront Technology Applications

There are two types of corneal abnormalities: cylindrical and spherical. Astigmatism is caused by a cylindrical abnormality whereas nearsightedness (also called myopia) and farsightedness (also hyperopia) are both caused by spherical abnormality.

http://www.lasikvisioncorrectioninfo.com/wp-content/uploads/2009/03/caring-for-the-eyes.jpg

Wavefront Technology when properly used can reveal an infinite many abnormalities. This is done by making use of a fixed objective along with an input laser beam. This beam creates light, which in turn is a wavefront sensor aiming at working out the slope of the wavefront as it quits. The dedicated software then works out the excimer ablation’s properties.

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