Lenses that change automatically to lighting conditions.
How do Transition® Lenses work?
When photochromic molecules of a Transitions® Lens are in their resting state they allow all visible light to come through the lens. Even in the resting state lenses block 100% UV A and UV B light. When the photochromic molecule becomes exposed to an energy source (bright sunlight), a complex molecular reaction occurs and changes chemical bonding and, thus, the shape of the molecules in the lens. In the fully activated state, the photochromic molecules are folded into completely new configurations. These configurations absorb light more effectively than the resting state and make the lens look dark. When the energy source is removed the molecules will always return to their original position and the lens lightens to its original color.
Spend a significant amount of time driving?
Drivewear® lenses have the ability to sense various light conditions and automatically adjust for those conditions, even from behind the windshield of a car. Photochromatic properties of this lens respond to both visible and UV light to protect your eyes from the sun and reduce glare.
The eye doctors and staff at Iowa EyeCare are experts at fitting all prescription non-prescription lenses, including Transition® and Drivewear® lenses. Schedule an appointment with one of our optometrists by calling 319-377-2222 or clicking here: CEDAR RAPIDS EYE DOCTOR.
Iowa EyeCare has locations in Marion, Robins, and Cedar Rapids, Iowa. We can help make a difference today.
Tags: drivewear, eyeglasses, sunglasses, transition
Has there been any research done on transition contact lenses?
Beth:
I spoke with a Transitions representative at the Iowa Optometric Association’s Annual Congress this past weekend (March 27, 2010). At this time there is no plan to incorporate Transitions technology into contact lenses. I agree that this would be a great idea. I do not know of any other companies working on dark sunglass-like contact lenses. At one time, Nike had amber- and grey-colored contacts for outdoor enthusiasts, but has since discontinued production.
Dr. Nelson