Welcome to Lasik Correction
Colorado Lasik Eye Article
This is a selection made from among articles on Colorado Lasik Eye. For a permanent link to this article, or to bookmark it for future reading, click here.
When Should You Consider Wavefront Guided LASIK Eye Surgery?
from:
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”, 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, 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, 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 – 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, 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, 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.
About Author
The LASIK Surgeons Directory - find a LASIK doctor. Nicola Kennedy publishes articles and reports and provides news and views about wavefront guided LASIK at Your Lasik Information.
This article may be reprinted in full so long as the resource box and the live links are included intact. All rights reserved. Copyright Your-LASIK.info
Source: ArticleTrader.com
Colorado Lasik Eye Specific links
Colorado Lasik Eye News
Icon LASIK adds a VISX S4 Laser to its Grand Junction LASIK Office
Denver, Colorado based Icon LASIK proudly announces the addition of a VISX S4 laser to its already impressive laser portfolio in Grand Junction, Colorado
Read more...More College Football Capsules: Luck throws 4 TD passes in Stanford's 52-17 win
STANFORD, Calif. (AP) — Andrew Luck stood up for his running backs. He also stood up and found his wide receivers — a lot.
Read more...Eye Doctor Under Fire Could Learn Fate As Early As October
A Colorado eye doctor being investigated by the state could learn the fate of his practice at an October Department of Regulatory Agencies board meeting.
Read more...STAAR Surgical Expands Leadership Team to Execute Company's Growth Strategy
STAAR Surgical Company , a leading developer, manufacturer and marketer of minimally invasive ophthalmic products, today announced that it has made two key additions to its executive management team. Ă‚ Donald J.
Read more...Physician Disciplinary Database Expands, Requires Self-Reporting
The disciplinary records of 117,000 more doctors will soon be at your fingertips under a new law that takes effect Wednesday.
Read more...