Finally, the opportunity for freedom from reading glasses and bifocals.
Until recently, life without reading glasses or bifocals was not
an option for most cataract patients. You now have an option. The AcrySof®
ReSTOR® IOL is a unique
technological innovation that can provide you with quality vision
throughout the entire visual spectrum - near through distance -
with increased independence from reading glasses or bifocals!
How does the AcrySof® ReSTOR® IOL
work?
As we perform daily activities such as reading, watching television or working at the computer, our eyes are constantly focusing on objects at varying distances - up close, far away and everything in-between. The ability to quickly change focus throughout this range of vision is called accommodation.
Unfortunately, this ability diminishes as we grow older, causing us to become dependent on bifocals or reading glasses. However, the AcrySof® ReSTOR® IOL was designed to provide quality near to distance vision by combining the strengths of apodized diffractive and refractive technologies. Similar technology has been used for years in microscopes and telescopes to improve image quality, and has now been patented for use in intraocular lenses by Alcon.
Click on the play button in the above grey bar to see how the AcrySof® ReSTOR® IOL works,
or click here to download the movie.
Apodized Diffractive
Apodization is the gradual tapering of the diffractive steps from the center to the outside edge of a lens to create a smooth transition of light between the distance, intermediate and near focal points. Diffraction involves the bending or spreading of light to multiple focal points as it passes through the lens. On the AcrySof® ReSTOR®
IOL, the center of the lens surface consists of an apodized diffractive optic. This means that the series of tiny steps in that center area work together to focus light for near through distance vision.
Refractive
Refraction involves the redirection of light passing through the lens, to focus on the retina. The refractive region of the AcrySof® ReSTOR® IOL bends light as it passes through the lens to a focal point on the retina. This outer ring of the AcrySof®
ReSTOR® IOL surrounds the apodized diffractive region and is dedicated to focusing light for distance vision.
