title: Wink-controlled polarization-switched telescopic contact lenses.
abstract: We describe a wink-controlled hands-free switching system for eye-borne telescopic vision, based on a previously tested fixed-magnification telescope embedded within scleral contact lenses. Here we integrate orthogonal polarizers into the contact lens covering the F/9.1 refractive 1× and F/9.6 catadioptric 2.8× vision paths, to allow switching via external liquid crystal shutters. We provide hands-free control by an infrared wink/blink monitor, using passive retroreflectors embedded within the contact lenses. We demonstrate system operation of the self-contained switching eyewear and the modified contact lenses with a life-size human eye model with mechanical "eyelids."
authors.forename: Glenn M
authors.initials: GM
authors.lastname: Schuster
authors.forename: Ashkan
authors.initials: A
authors.lastname: Arianpour
authors.forename: Scott
authors.initials: S
authors.lastname: Cookson
authors.forename: Arthur
authors.initials: A
authors.lastname: Zhang
authors.forename: Lee
authors.initials: L
authors.lastname: Hendrik
authors.forename: Tyrone
authors.initials: T
authors.lastname: O'Brien
authors.forename: Agusto
authors.initials: A
authors.lastname: Alvarez
authors.forename: Joseph E
authors.initials: JE
authors.lastname: Ford
mesh_terms: D001767:Blinking / Q000502:physiology*; D003261:Contact Lenses; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D007089:Image Enhancement / Q000295:instrumentation; D008328:Man-Machine Systems; D055617:Micro-Electrical-Mechanical Systems / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D061351:Telescopes