BioSpace.com

Biotech and Pharmaceutical
News & Jobs
Search the Site
 
   
Biotechnology and Pharmaceutical Channel Medical Device and Diagnostics Channel Clinical Research Channel BioSpace Collaborative    Job Seekers:  Register | Login          Employers:  Register | Login  

NEWSLETTERS
Free Newsletters
Archive
My Subscriptions

NEWS
News by Subject
News by Disease
News by Date
PLoS
Search News
Post Your News
JoVE

CAREER NETWORK
Job Seeker Login
Most Recent Jobs
Browse Biotech Jobs
Search Jobs
Post Resume
Career Fairs
Career Resources
For Employers

HOTBEDS
Regional News
US & Canada
  Biotech Bay
  Biotech Beach
  Genetown
  Pharm Country
  BioCapital
  BioMidwest
  Bio NC
  BioForest
  Southern Pharm
  BioCanada East
  US Device
Europe
Asia

DIVERSITY

INVESTOR
Market Summary
News
IPOs

PROFILES
Company Profiles

START UPS
Companies
Events

INTELLIGENCE
Research Store

INDUSTRY EVENTS
Biotech Events
Post an Event
RESOURCES
Real Estate
Business Opportunities

 News | News By Subject | News by Disease News By Date | Search News
eNewsletter Signup
Miles
Km80.5

   

eyeonics, Inc. Release: Growing Evidence Supports What Patients Already Know: Crystalens Acts Like The Eye's Natural Lens To Deliver Premium Vision At All Distances


3/16/2006 11:19:48 AM

SAN FRANCISCO, March 16 /PRNewswire/ -- Crystalens, the first and only U.S. Food and Drug Administration-approved accommodating intraocular lens (IOL), today underscored its command of the premium lens channel with data to be presented at the American Society of Cataract and Refractive Surgery annual meeting in San Francisco. Recent clinical data from accommodative arching studies show that the crystalens closely mimics the innate focusing action of the natural crystalline lens -- something no other IOL can claim. This action explains why the majority of crystalens patients are able to achieve a continuous range of vision -- near, distance and intermediate.

"The performance of the crystalens defines the premium lens channel. No lens technology comes closer to mirroring the eye's natural lens than the crystalens, making it one of the few implantable devices available that is delivering the medicine of tomorrow ... today," said J. Andy Corley, chief executive officer of eyeonics, the manufacturer of crystalens. "The objective scientific evidence of accommodative arching further supports our product's performance in this category."

Approved by the FDA in November 2003 and already implanted in more than 40,000 eyes worldwide, crystalens replicates the action of the original crystalline lens it replaces by using the eye's natural muscles to move both back and forth and change its curvature -- just like the natural crystalline lens. This unique natural focusing dynamic delivers 100 percent of available light rays at all distances and makes crystalens the only available IOL to provide a continuous range of vision -- near, far and everything in between.

"After wearing readers for so long, you forget how nice it is to have clear, continuous vision without reaching for a pair glasses," said Pat Summerall a renowned NFL sports broadcaster. "After the crystalens surgery, my vision kept improving. Now, 10 months later, I have terrific vision no matter what the distance."

Accommodative Arching Theory Brings Human Vision Into Focus

For centuries, medical scientists have been fascinated by the eye's ability to rapidly change focus between distances. Some of history's most famous philosophers and scientists, including Keple and Descartes, have added to our understanding of the how the eye achieves focus -- or, accommodates. By the 1800s, evidence was uncovered that showed conclusively that the lens of the eye changes shape, increasing its curvature and, therefore, its focusing power, to bring vision into focus through the range of distances. In the early 1900s, physicians postulated that the tension of ciliary muscles pressed the crystalline lens against the vitreous body -- forcing the lens to flex and increase its curvature. This dynamic, in combination with the back and forth motion of the lens in the eye, today is understood to be the eye's natural method of focus.

Recent work in this area has led Kevin L. Waltz, OD, MD to understand how closely the only FDA-approved accommodating IOL -- the crystalens -- mimics the natural focusing mechanisms leading to his theory of accommodative arching. Until now, the crystalens' capacity to move back and forth was generally believed to be the primary action of its focusing ability. However, accommodative arching describes newly discovered changes in the radial curvature of the crystalens brought about by fluctuations of force in the ciliary body which increases the focusing power of the lens.

The clinical data presented at ASCRS involves multiple studies and focuses primarily on crystalens' mechanism of accommodation. Specific objective and subjective measures were designed to distinguish the true accommodative changes provided by crystalens from the pseudo-accommodative effects offered by multifocal IOLs, contact lenses, corneal refractive procedures and other approaches. Among the key findings:

Anterior/posterior lens movement: The primary mechanism of accommodation, resulted, as intended in the crystalens' design, from contraction of the eye's natural ciliary muscle to which the crystalens is attached; Accommodative arching: The flexing of the lens that results in refractive power changes and provided a secondary, additive effect to the crystalens' natural focusing ability -- the first time scientific data have confirmed this hypothesis; and Sustained accommodative effect: No significant differences in near and distance visual acuities were reported between one- and three-year intervals among subjects in the clinical trial that led to FDA approval of the crystalens.

"By virtue of its incorporation into the ciliary musculature and the precision of its manufacturing process to produce a remarkably thin lens, the crystalens is able to replicate all of the known focusing mechanisms of the natural lens," said Dr. Waltz. "Consequently, the accommodating IOL is able to deliver premium vision through the entire continuum of distances."

Crystalens Delivers on the Promise of Futuristic Vision

Many Baby Boomers assumed that, by the time they turned 60, they would benefit from futuristic medical technologies -- including medical implants that are just as good, if not better, than their biological counterparts. The good news for the 90 million American adults over the age of 45 that face a future of diminished vision due to presbyopia and cataracts, crystalens' accommodating technology performs just like the natural lens in the eye and provides a clear, continuous range of vision.

This full range of clear vision -- especially the intermediate or "lifestyle" vision, where reading a newspaper, seeing facial expressions and other daily tasks occur -- distinguishes crystalens from other, older IOL technologies. Multifocal IOLs, for example, are "fixed" in the eye, resulting in "stepped" or "zoned" vision, and often require patients to wear glasses or contacts to make up for the gaps. Multifocal IOLs also have higher incidences of vision problems, including complaints of glare and halos, resulting in FDA warning on their labeling.

About crystalens

The crystalens is the result of more than 14 years of research and development by J. Stuart Cumming, M.D., F.A.C.S., and was approved by the FDA in November 2003. More than 40,000 lenses have been implanted worldwide to date. During clinical trials, all of the patients who received the crystalens greatly reduced their need for corrective lenses or eyeglasses. The patented crystalens technology is designed to allow the lens to move in the eye in a manner similar to the natural lens. By using the eye's muscle to move the lens back and forwards naturally, patients can focus through a continuous range of vision including near, far and everywhere in between. All other intraocular lenses are designed to remain fixed in the eye. For more information about the crystalens go to www.crystalens.com

About eyeonics Inc.

eyeonics is a privately held medical device company headquartered in Aliso Viejo, Calif., founded in 1998. eyeonics is committed to developing a new class of visual enhancement systems that will enable patients to see up close, far away and all distances in between. For more information about eyeonics, inc., go to www.eyeonics.com.

www.crystalens.com For More Information Liana Miller 949-595-4320 liana@goolsbygroup.com

eyeonics Inc.

CONTACT: Liana Miller, +1-949-595-4320, or liana@goolsbygroup.com, foreyeonics Inc.



Read at BioSpace.com

   

ADD TO DEL.ICIO.US    ADD TO DIGG    ADD TO FURL    ADD TO STUMBLEUPON    ADD TO TECHNORATI FAVORITES