Artificial lenses (IOLs) are implanted in the eye to replace natural lenses for patients with cataracts, presbyopia or severe refractive errors. 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.
The procedure to replace a patient’s natural lens with a multifocal IOL is the same as that used in cataract surgery.
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.
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.
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 with cataracts and are experiencing one or more of the following vision problems, you may be a candidate for the ReZoom multifocal IOL:
- Difficulty reading
- Difficulty seeing close objects
- Difficulty driving, especially at night
- Frequent changes in glasses prescription
- Need for bifocals
Toric IOLs are specially designed for patients with astigmatism. Traditionally, surgical correction of astigmatism required making a series of small incisions (called LRIs, or limbal relaxing incisions) around the cornea to make it more spherical instead of football-shaped. Implanting toric IOLs often improves vision without the need for these extra incisions, and also allows patients to enjoy a faster, more comfortable recovery.
To learn more about multifocal intraocular lenses, please call us today to schedule an appointment.