Artificial lenses (IOLs) are implanted in the eye to replace natural lenses that have been damaged by cloudy cataracts or presbyopia. Until recently, IOLs were only available to correct distance vision. These monofocal lenses helped improve distance vision after cataract surgery, but patients still needed glasses or contact lenses for near vision activities like reading and playing cards. Now, 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®, ReZoom™ 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.
The procedure to replace a patient's natural lens with a multifocal IOL is the same as that used in cataract surgery.
ReSTOR®
 Using apodization, diffraction and refraction 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.
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ReZoom™
The ReZoom™ multifocal IOL helps patients focus clearly on objects at a range of distances and in varied light conditions. Featuring a patented lens design called Balanced View Optics™ Technology, the ReZoom lens has five spherical segments with smooth transitions in between so the eyes focus seamlessly from one distance to the next. The center of the lens is optimized for bright light and distance vision, while the fourth zone supports near-vision in a variety of light conditions, and the outermost zone accommodates for low-light distance vision (such as when driving at night). The ReZoom is also specially designed to reduce internal reflections and minimize glare.
If you have been diagnosed as having cataracts and are experiencing one or more of the following vision problems, you may be a candidate for the ReZoom multifocal IOL:
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- Difficulty reading
- Difficulty seeing close objects
- Difficulty driving, especially at night
- Frequent changes in glasses prescription
- Need for bifocals
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Monofocal IOL -
Near vision is blurry |
ReZOOM™ Multifocal Lens - Vision is clear at all distances |
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Crystalens™
 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. With older IOLs, patients lose this ability and require corrective eyewear to see clearly at near and intermediate distances.
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.
One eye or two?
The Crystalens procedure is normally performed first in the dominant eye. The surgeon will wait two weeks before inserting the second implant to assure the proper balance for reading and distance vision is achieved with both eyes.
Who is a candidate?
The Crystalens is ideally suited for patients who want to not only restore clarity in their vision but also restore their near, intermediate and distance vision. Almost anyone who has cataracts is a candidate for the Crystalens procedure if they are healthy and do not have any serious eye diseases. You may be a candidate even if you have had previous refractive surgery. The best way to find out if you are a candidate for this procedure is to have a consultation with our center.
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