When Should You Consider Wavefront Guided LASIK Eye Surgery? Health Articles | August 22 Walter Payton Youth Jersey , 2011 In order to understand the effectiveness of wavefront-guided LASIK, we must first have a quick roundup on the natural imperfections of the eye. The cornea and the crystalline lens are not perfect, and...
In order to understand the effectiveness of wavefront-guided LASIK, we must first have a quick roundup on the natural imperfections of the eye. The cornea and the crystalline lens are not perfect Riley Ridley Womens Jersey , and light rays passing through the eye are subject to being distorted due to these imperfections. These distortions are termed as "aberrations", which are categorized as lower order and higher order aberrations.
Lower order aberrations constitute a major chunk (90% or more) of these aberrations, and lead to the more prevalent refractive errors, such as farsightedness David Montgomery Womens Jersey , nearsightedness and astigmatism. These vision anomalies can be compensated for by corrective eyeglasses and contact lenses, or can be treated through conventional surgical procedures like PRK, LASIK or LASEK. However, the remaining 10% optical aberrations Akiem Hicks Womens Jersey , also known as higher order aberrations, give birth to anomalies that cannot be cured via conventional LASIK.
Such a scenario necessitates the use of wavefront-guided LASIK.
Since higher order aberrations are entirely unique to a particular patient, much like fingerprints, a wavefront analysis system (known as an Aberrometer) is used to measure these aberrations. The Aberrometer is digitally interfaced with a sophisticated Tarik Cohen Womens Jersey , computer controlled laser, which is directed in a precise manner over the cornea. In essence, the laser custom sculpts the cornea 聳 a completely customized reshaping of the corneal surface.
The procedure employed by the wavefront analyzer to measure higher order aberrations would appear quite complex to a layman.
At first, a ray of light is passed through the eye and is reflected off the retina as an outgoing wavefront. This wavefront is compared against a planar wavefront Mitchell Trubisky Womens Jersey , in order to determine both lower and higher order aberrations. These aberrations are displayed on a monitor screen in the form of precise 3D images. This information is then used for a custom ablation of the cornea, with the aid of an excimer laser eye surgery system interfaced with the Aberrometer.
On the whole, the conventional LASIK procedure would suffice for the treatment of common lower order aberrations, such as myopia Anthony Miller Womens Jersey , hypermetropia and astigmatism.
However, higher order visual defects normally call for a much advanced surgical procedure like wavefront-guided LASIK.
If you find a LASIK doctor that you are confident about you will be able to get more information about wavefront guided LASIK.
There聮s no doubt that many people have LASIK surgery to improve their looks. And this is a perfectly legitimate reason to have eye surgery. We all want to look better and feel better, both about ourselves and to other people.
But what happens if you are not a good candidate for surgery?
I have several friends who were unhappy about the way they looked and had pinned their hopes on eye surgery as they grew older, and they were devastated when they learned that they were unable to get laser eye treatment.
I suggested that they look at some of the new anti-ageing treatments that are available on the high street such botox Roquan Smith Womens Jersey , skin peels and dermal fillers.
My best friend Monica opted to have some of her facial wrinkles treated with botox in Glasgow and she is delighted with the results. She looks younger, and more importantly, she says that she feels great too.
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