The cover shows Timberlake looking into phoropter, a machine used during eye examinations. |
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Her EpiGlare Tester mounts on the phoropter instrument and emits a point source of light. |
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I press my forehead against the phoropter, the strange optical instrument straight out of a sci-fi movie. |
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Instrumentation for the static measures included the phoropter with Risley prisms, the Sheedy disparometer, reduced near Snellen targets, and small pen-tip tracking targets. |
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