An intraocular lens system includes a primary intraocular lens configured tocorrect vision in a patient, and a supplemental intraocular lens configured tomodify the correction provided by the primary intraocular lens. Thesupplemental intraocular lens, which is substantially completely diffractive,is preferably ultrathin. The two lenses may be connected to, or separate from,one another. The supplemental intraocular lens may be implanted at the sametime as the primary intraocular lens, or added later.
