Supplementary IOLs: Monofocal and Multifocal, Their Applications and Limitations.

Supplemental intraocular lenses (IOLs) have been developed to replace IOLs designed for in-the-bag placement being used as "piggy-back" IOLs in the sulcus due to unacceptable complications. The new IOLs have unique platform designs to avoid these complications. As a result, a new nomenclature is needed to describe the 4 scenarios when supplemental IOL use is now indicated. Copyright 2017 Asia-Pacific Academy of Ophthalmology.