ACCOMMODATING INTRAOCULAR LENS AND METHOD OF INSERTION THEREOF INTO LENS CAPSULE Russian patent published in 2024 - IPC A61F2/16 

FIELD: medicine.

SUBSTANCE: accommodating intraocular lens includes a first non-deformable optical element, which is tightly connected along its perimeter to a second deformable optical element, wherein both the first non-deformable optical element and the second deformable optical element have central transparent optical regions and first and second haptic regions associated with corresponding regions of the first non-deformable optical element and the second deformable optical element, each of which is tightly connected to the other along the perimeter. First non-deformable optical element has a first contact surface having a convex contact area which contacts the second contact surface of the second deformable optical element. Sealed air-filled cavity is confined by said first and second optical elements between said central transparent optical regions and the first and second haptic regions. Air-filled cavity includes a portion of the optical region and a portion of the haptic region. In a relaxed state, for focusing the eye on close objects, said part of the optical region forms an interface with air between the peripheral parts of the optical regions of the first and second optical elements, and in a non-relaxed state for focusing the eye on distant objects, air is displaced from said part of the optical region into said part of the haptic region with elimination of the interface with air and enabling contact of the inner surfaces of said optical regions to form a solid optical element of the lens. In the non-relaxed state, pressing said first contact surface of the first non-deformable optical element to the second contact surface of the second deformable optical element changes the curvature of said second deformable optical element. Intraocular lens is configured to transition from said relaxed state to said non-relaxed state when a sufficient counter force is applied to peripheral parts of said optical regions and the intraocular lens is configured to transition from a non-relaxed state to a relaxed state with a decrease in said counteracting forces.

EFFECT: broader functional capabilities.

9 cl, 7 dwg