| http://www.w3.org/ns/prov#value | - Optic portion 21 comprises anterior lens element 23, actuator layer 24 including lens piston 25, substrate 26 and posterior lens element 27, all made of light-transmissive materials, such as silicone or acrylic polymers or other biocompatible materials as are known in the art of intraocular lenses.
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