Today, cataract surgery is a simple and quick procedure and many advancements have been made in the technology surrounding Intraocular Lenses, the lens that replaces the clouded lens removed during surgery. There are many new developments and options when it comes to making your intraocular lens decision. Many times, premium lenses can reduce dependency on eyeglasses after surgery!
Monofocal lens – This common IOL type has been used for several decades. Monofocals are set to provide best corrected vision at near, intermediate or far distances. Most people who choose monofocals have their IOLs set for distance vision and use reading glasses for near activities. On the other hand, a person whose IOLs were set to correct near vision would need glasses to see distant objects clearly.
Multifocal lenses – These newer IOL types reduce or eliminate the need for glasses or contact lenses. In the multifocal lens, a series of focal zones or rings is designed into the IOL. Depending on where incoming light focuses through the zones, the person may be able to see both near and distant objects clearly. The ability to read and perform other tasks without glasses varies from person to person but is generally best when multifocal IOLs are placed in both eyes.
Toric IOL for astigmatism – This is a monofocal IOL designed to correct astigmatism. Astigmatism distorts or blurs the ability to see both near and distant objects. Astigmatism means that the cornea of the eye is not round and smooth, like a basketball, but curved like a football. People with significant degrees of astigmatism are usually most satisfied with Toric IOLs.