Types of Intraocular Lenses When the cataract is removed during surgery, it is replaced with an intraocular lens (IOL) that focuses the light into your eye. There are several types of IOL implants: A Monofocal Lens is the basic type of lens implant. It only provides a single focus point in each eye: distance, mid-range or near focus. People who have a monofocal lens will need to wear glasses for at least one point of focus (distance, midrange or near).
Watch This Video for An Overview of IOLs
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