Lens system and method for power adjustment

Details Lens system and method for power adjustment Lens system and method for power adjustment

G - Physics

02

C

G02C 7/02 (2006.01) A61F 2/16 (2006.01)

Patent

CA 2506753

A lens (12) is provided that having optical parameters that may be adjusted in- situ, and is particularly useful as an IOL for use in cataract patients that require an adjustment in the optical power of the lens post-implantation. In one embodiment, the lens body carries an array of interior fluid-filled cells (20) in which fluid is controllably moved upon application of energy from an external source to move a fluid media into or out of the cells to thereby alter the lens surface shape.

L'invention concerne une lentille présentant des paramètres optiques pouvant être réglés in situ. Cette lentille est particulièrement utile comme lentille intraoculaire (LIO) destinée à des patients atteints de cataracte nécessitant un réglage de la puissance optique de la lentille après implantation. Dans un mode de réalisation, le corps de la lentille supporte un réseau de cellules remplies d'un fluide pouvant être déplacé de manière régulée par application d'une énergie à partir d'une source externe en vue de déplacer un milieu fluide vers l'intérieur ou l'extérieur des cellules, ce qui permet de modifier la forme de la surface de la lentille.

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