Intraocular lenses, also known as lens implants or IOLs, are an effective treatment for a variety of conditions and diseases, including cataracts, presbyopia, and nearsightedness, and astigmatism, and are intended to replace the natural lens of the eye. These lenses come in single-focus (monofocal) styles as well as in more advanced, “all distance lenses” such as the multifocal lens and the accommodating lens that make clear vision possible at more than one distance.
The procedure for implanting intraocular lenses is the same as the procedure used during cataract surgery. After a topical anesthetic is applied, the surgeon uses ultrasonic waves to break up the natural lens while preserving the capsule that holds it. The natural lens is then extracted through an incision in the eye.
The new lens is inserted through the same incision into the capsule that held the original lens. In most cases, no stitches are required to close the incision, as it heals on its own. It sometimes takes several weeks for the full benefit of the procedure to become obvious, but most patients are able to return to normal activities and enjoy improved vision within a week or less.
Multifocal Intraocular Lenses
A multifocal lens is composed of a series of concentric rings, each of which helps you focus on objects at different distances and in different light conditions. This design helps you see clearer in different situations and reduces dependence on glasses and contact lenses.
- TECNIS® Multifocal IOL
- ReSTOR® Multifocal IOL
- Symfony IOL
- Symfony Toric IOL
- PanOptix Toric
Accommodating Intraocular Lenses
- Trulign Toric
Crystalens® and Trulign Toric are the only intraocular lenses that flex just like the natural lens of the eye. Rather than using stages or zones for different kinds of vision, like the multifocal lenses, or being limited to a single focal depth like conventional IOLs lenses, the Crystalens® and Trulign Toric IOLs transition smoothly between focal distances under the power of using the same muscles that controlled the original lens. In terms of visual acuity, having a Crystalens® or Trulign Toric implant is like having your old, worn lenses replaced with those you had at 25 years old. In fact, in a large-scale study conducted by the FDA more than 98 percent of patients who chose the Crystalens® IOL could read a newspaper without glasses, and 100 percent could read email and other content on a computer screen. Overall, more than 98 percent achieved 20/40 vision or better, and most of those achieved 20/30 vision or better.
The Trulign Toric Lens works the same as the Crystalens in that it flexes just like the natural lens of the eye and transitions smoothly between focal distances using the same muscles that controlled the original lens. The difference between the Crystalens and the Trilign Toric is that the Trulign Toric can also correct astigmatism, and the Crystalens cannot.