Over time, the lens and muscles of the eye lose some strength and flexibility needed to focus on near objects. This normal aging process is called presbyopia and nearly everyone develops some degree of prebyopia after the age of 40.
Conventional lens implants are monofocal IOLs and they have been used for several decades. Monofocal implants only focus at one distance range. They can be set to provide best corrected vision at near, intermediate or far distance. Most people who choose monofocal implants have their IOLs set for distance vision and use reading glasses for near vision.
Recent advanced in cataract lens implant technology have made it possible to experience life without reading glasses or bifocals after cataract surgery. Lens implants are now available that allow focusing power at multiple viewing distances. These IOLs are called prebyopia correcting cataract lens implants or multifocal IOLs. With these lens implants, vision can be clear at distance and near without the use of glasses. For people who desire freedom from glasses after cataract surgery, the multifocal IOLs may be a possible option. There are several different types of multifocal implants, and we have chosen AcrySof® IQ ReSTOR® as the prebyopia correcting cataract lens implant that will offer our patients the highest quality of vision.