Patent ID: 7384429

Claim:
An accommodative intracapsular implant comprising: a central optical part; and at least two haptic arms ( 3 , 4 ), free ends ( 5 , 6 ) of which are formed to cooperate with portions of equatorial zones of a capsular bag, wherein said optical part is formed by two bodies, elastically deformable and joined together, wherein: one body is shaped as an envelope (I), having an interior volume (V) and with an envelope initial free shape, and the other body is shaped as a core ( 2 ), having a volume (V) and a core initial free shape, the interior volume (V) of the envelope ( 1 ) is identical to the volume (V) of the core ( 2 ), the core initial free shape is more convex than the envelope initial free shape, such that the core ( 2 ), when introduced into the envelope (I), is flattened by the envelope ( 1 ), the envelope ( 1 ) has an external surface with a convex anterior face ( 1 a ) which has, when the envelope ( 1 ) is empty, a first radius of curvature (R 1 ), and when the envelope ( 1 ) houses the core ( 2 ), a second radius of curvature (R 2 ), said second radius of curvature (R 2 ) being smaller than said first radius of curvature (R 1 ), and when the envelope (I) houses the core ( 2 ) and a field of forces (F) resulting from a radial contraction of the capsular bag is applied to the free ends ( 5 , 6 ) of the haptic arms ( 3 , 4 ), a third radius of curvature (R 3 ), said third radius of curvature (R 3 ) being smaller than said second radius of curvature (R 2 ), thus resulting in a change of the optical power of the optical part.