| http://www.w3.org/ns/prov#value | - The capsule stretcher 76c may be constructed of a foldable inert optically transparent material, such as silicone, to permit the stretcher and its supporting cage 80 to be folded as a unit to a compact configuration for insertion through a small incision, or it may be a hard optically transparent material, such as methyl methacrylate.
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