When Should You Consider Wavefront Guided LASIK Eye Surgery? Health Articles | August 22 Ezekiel Elliott Authentic 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, and light rays passing through the eye are subject to being distorted due to these imperfections. These distortions are termed as "aberrations" Emmitt Smith Authentic Jersey , 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, 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 Cheap Tony Pollard Jersey , LASIK or LASEK. However, the remaining 10% optical aberrations, 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 Cheap Connor McGovern Jersey , a wavefront analysis system (known as an Aberrometer) is used to measure these aberrations. The Aberrometer is digitally interfaced with a sophisticated, 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 Cheap Trysten Hill 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, hypermetropia and astigmatism.
However Cheap Taco Charlton Jersey , 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, 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 Cheap Michael Gallup Jersey , she says that she feels great too.
Why You Should Acquire A Laptop For Business Computers Articles | August 20, 2010 Living in a world of business modernization especially with regards to computer dimensions are sometimes faced with a common dilemma. Should you get and acquire a desktop or a laptop? Desk...
Living in a world of business modernization especially with regards to computer dimensions are sometimes faced with a common dilemma. Should you get and acquire a desktop or a laptop? Desktops are fine if you are a wholehearted gamer but laptops are the absolute choice for an average consumer particularly with a small business.
One of the key benefits of owning a laptop is that it is movable or portable. You longer have to reside behind a computer desk since with a laptop you can take your work outside, on the road, in a plane and practically any place that has a power outlet. Apart from this, the portability aspect of the laptop allows users to be more social and productive than desktop users. Laptops users can mingle with their friends and peers while doing their business work activities. In this case Cheap Leighton Vander Esch Jersey , first you just need to look for in a wireless connectivity. A wireless networking card allows you to connect to the Internet by means of thousands of wireless networks located nationwide. This only means more convenient and readily available access to your emails and business clients.
As far as individual conditions, you only need a standard configuration with integrated graphics to handle any word processing or basic programs like email clients, DVD software, web browsers and etc. Unless you plan on doing an excessive amount of multi-tasking or video production, it would be wise to put other accessories like office suite software Cheap Demarcus Lawrence Jersey , which can really help you manage your routine workload.
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