Artificial lenses (IOLs) can be implanted in the eye to replace natural lenses that have been damaged by cloudy cataracts or presbyopia. Advancements in technology have produced multifocal IOLs that allow patients to see clearly at all distances -- near, far and many distances in between. Multifocal IOLs such as ReStor® and Crystalens® preserve distance vision and correct presbyopia so cataract surgery patients -- and patients seeking treatment for presbyopia alone -- can enjoy clear sight without relying on glasses.

Crystalens® is a new replacement lens (IOL) that works naturally with muscles in the eye to retain the eye's ability to "accommodate" –- to shift focus between nearby and distant objects. Unlike rigid lenses, the flexible silicone Crystalens features innovative hinges that allow it to move with the eye's muscles and accommodate seamlessly, thereby reducing or eliminating the need for vision correction. The Crystalens is implanted using the same, nearly risk-free cataract surgery techniques as with other IOLs.

Using advanced technologies, the ReSTOR® lens improves upon ordinary replacement lenses (IOLs) by providing comprehensive focusing capabilities so patients can see clearly in a range of lighting conditions and at all distances -- at noon or midnight, nearby or far away, and many distances in between. Up to 80% of patients who use the ReSTOR® lens don't need to rely on glasses or contact lenses after surgery.