A supplemental intraocular lens is provided for implantation in the eye to modify the lens system of the eye comprising the cornea and the natural lens or an intraocular lens already implanted in the eye, to create a modified lens system having teledioptic or other diffractive capabilities to correct...http://www.google.fr/patents/US6197057?utm_source=gb-gplus-shareBrevet US6197057 - Lens conversion system for teledioptic or difractive configurations
Lens conversion system for teledioptic or difractive configurations