Posted on February 27, 2010.
New lens designs using the technology of the wavefront eye exams that take the traditional use of letters and pictures are limited, subjective and sometimes inaccurate, because the result is based on the patient's response. These traditional eye exams may also not reflect the problems underlying vision. Measurement of wavefront using an instrument can reach more data on errors of vision automatically. In charting the way light rays travel through the retina, the diagnosis of wavefront underlying detects refractive errors on your retina and lens.
Wavefront technology improves the design of common corrective semi rimless glasses for nearsightedness, farsightedness, astigmatism and high order aberrations. Before the introduction of the analysis of wavefront aberrations of higher order are obscure. Wavefront makes these lenses specifically modify the light rays so between the wearer's eyes, the creation of clearer vision. LASIK also takes full advantage of the technology of the wavefront, resulting from the procedure wavefront guided or optimized, which can remove tissue more precisely on the retina.
Since late 2005, the goal of new models based on wavefront technology has been available for customers. These new models incorporate the same lens corrections scanned both sides of the lens. Wavefront lenses are estimated at 25% to 30% more expensive than their counterparts in conventional lenses. Currently, there are products for wavefront lenses of different brands, such as the Ophthonix iZon Corp. and Essilor Varilux Physio of American. While defending their own advantages, their objectives to improve the clarity of purpose and reduce distortions.
Ophthonix manufactures lenses wavefront from measurements of wavefront individualized. The Z-View aberrometer Ophthonix takes measures wavefront your eyes and lenses can be made. iZon lenses using high-index materials and coatings anti-scratch and anti-glare. iZon lenses create improved vision over again for those with a significant degree of aberration that is beyond conventional lenses. Now iZon lenses covered and progressive multifocal types.
Also using wavefront analysis, other objectives include the development of new Ellipse Varilux, Essilor, Zeiss GT2 Carl Zeiss Vision, Creation and Shamir Autograph Insight and so on. These lenses do not require measures wavefront individual. Take Essilor products as an example, Varilux Physio progressive lenses offer a smoother transition between near, intermediate areas and distance. The company also claims that its objectives are integrated with more contrast sensitivity, which is very useful for those with low vision. Hoya Lens Of America offers models of wavefront lenses that can adjust to the movement of the eyes to avoid visual distortions. There are still companies that lead wavefront optics to new research.
People with 20/20 vision can also experience the distortions caused by defects of vision vision. Wavefront lenses may be more attractive to people with sight defects that are beyond current refractive lenses. iZon lenses are particularly useful for those who need a clearer vision of night, which is essential for night driving. iZon lenses are also proved to be more effective in the treatment of LASIK complications.
Article Source: http://vision.firmoo.com/eyeglasses/new-lens-designs-using-wavefront-technology.html