This standard applies to any intraocular lens whose optic provides two or more rotationally symmetric powers and whose primary indication is the correction of aphakia with the added benefit of useful vision at more than one distance
DS/EN ISO 11979-9:2007 history
2007DS/EN ISO 11979-9:2007 Ophthalmic implants - Intraocular lenses - Part 9: Multifocal intraocular lenses