Multifocal intraocular lens

A Multifocal Intraocular Lens (IOL) comprising:

• at least one diffractive surface including a plurality of discrete, adjacent, diffractive, concentric Fresnel zones, having:
• a radial phase profile cross-section with a near-symmetrical local diffractive surface topography,
• wherein said near-symmetrical local diffractive surface topography provides a distribution of energy over five consecutive diffractive orders:
• −2, −1, 0, +1, and +2, and
• wherein said −2 order provides a far vision, said +2 order provides a near vision, said 0 order provides a first intermediate vision, and said +1 order provides a second intermediate vision, wherein said near-symmetrical local diffractive surface topography produces a diffractive pattern comprising said five consecutive orders with only said −1 order being suppressed;
• and
• wherein a combination of said near-symmetrical local diffractive surface topography and said five consecutive diffractive orders increases the overall efficiency of said IOL to more than 90% efficiency in said five consecutive diffractive orders.