Your options for cataract treatment in the Chicago area include monofocal and multifocal intraocular lenses (IOLs). During cataract surgery, the eye doctor removes the cloudy natural lens of the eye and replaces it with one of these types of intraocular implants. Most often, doctors implant monofocal IOLs. This type of lens is engineered to help patients focus at one distance—near, medium, or distance vision. Patients usually opt to have the lens provide clear distance vision. They will then use reading glasses for up-close work.
Multifocal lenses are more complex. This IOL features different zones, each with its own focusing power. In other words, multifocal lenses offer both near and distant focusing capabilities simultaneously. They work in a similar way as bifocal or multifocal contact lenses. Multifocal lenses are ideal for people who do a lot of reading or other close work, and who aren’t enamored of the idea of using reading glasses frequently.