Newer Multifocal Intraocular Lenses A Good Choice For Cataract Patients
Advances in technology have made seeing much easier for patients undergoing cataracts surgery. Previously, patients only had one lens option, the monofocal lens implant that only allows focus at one focal distance. Patients will still need glasses in order to read or see things close up. Fortunately, with new technology, patients now have more options to choose from and can get rid of their glasses for good.
Fortunately, there are many new choices available for cataract patients.
Multifocal Intraocular Lens Options
Multifocal Intraocular Lenses (IOL's) offer distance and near vision, as well as everything in between. Most early IOLís were better than having a cataract, but they did not provide the wearer with clear vision without help of glasses for near vision. Thanks to modern technology patients can now take advantage of new multifocal lenses. Let's review each type briefly.
Thanks to modern technology patients can now take advantages of new multifocal lenses. Let's review each type briefly.
- AcrySof ReStor - This multifocal lens uses a new technology that accommodates the pupil's size and provides near, distance and intermediate vision for patients. This unique design called apodized diffraction bends light at different angles to allow focus at multiple distances. Most people using this type of lens will not need to wear glasses following surgery. Patients receiving the AcrySof lens following cataract surgery often had vision that was 20/25 or better.
- ReZoom - This lens distributes light evenly throughout the eye improving vision. This allows correction for near, distance and intermediate vision. This technology has been around for some time, though the FDA only approved use of ReZoom in the United States in the last couple of years. Some studies suggest more than 90 percent of patients receiving this type of lens will not need glasses or other corrective lenses following surgery.
- Crystalens - This lens has been around for roughly 3 years now. It helps restore the eye's ability to accommodate. It is a monofocal lens that shifts position in the eye in order to help focus distance, intermediate and near vision, much like our natural lens. Using this lens, patient's eyes are able to focus at more distances than they would with a traditional monocular IOL. This is one of the only "accommodating" lenses that the U.S. Food and Drug Administration approves for use to help correct near, intermediate and distance vision. Also learn more about presbyopia.
Should you invest in these new lenses? One thing surgeons have learned with time is you can never be one hundred percent certain of a patient's outcome before and after surgery. While most patients will respond very well to these new lenses, most studies confirm that 90-93 percent of patients have better vision and do not need to wear corrective lenses.
That still leaves 7-10 percent of the population that may still need some type of vision correction, typically in the form of glasses or contact lenses, to provide them with 20/20 vision or better following surgery.
Intraocular Lenses For Other Vision Problems
Newer intraocular lenses help more than cataracts patients. They also help correct astigmatism in some patients. One of the more commonly used lenses to help correct astigmatism in patients is the AcrySof Toric intraocular lens. This lens is a good option for patients who have astigmatism and do not want to wear astigmatism correction in the form of glasses after cataract surgery.
Whatever your choice, be sure you talk with you eye care doctor about the possibility of these lenses and your potential outcomes. Only you (along with your doctor) can decide what type of surgery and lens may be best for your situation.
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