| http://www.w3.org/ns/prov#value | - The subjective refractor of claim 3 wherein said plurality of optical elements includes some elements in a far vision path, other elements in a near vision path, and still other elements in a shared vision path, said plurality of motors including a sight-line changing motor for moving said movable near vision mirror to change a patient's sight line of at least one eye between said far vision path
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