DS DS/EN ISO 11979-9
DS DSEN SO 11979-9 2006-OCT-24 Ophthalmc mplants - ntraocular lenses - Part 9 Multfocal ntraocular lenses
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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