Johnson and Johnson Vision Care, Inc.

Essilor International (compagnie Generale D'optique)

Essilor International

George A Zikos

Adam Toner

Amitava Gupta

Edgar V Menezes

Scott R Humphreys

Corey Kenneth Barrows

Richard J Nason

Arkady Selenow

Steven Hoggarth

John Rocco Robillotto

Kenneth J Ciuffreda

The present disclosure relates to sensor systems for electronic ophthalmic devices. In certain embodiments, the sensor systems may comprise a sensor such as an adjustable resistor configured in series with an eye of a user of the electronic ophthalmic device. The sensor systems may comprise a gain stage configured to amplify a signal indicative of a difference between a voltage drop across the eye and the adjustable resistor. The sensor systems may comprise an integrator configured to integrate the amplified signal. A resistance value of the adjustable resistor is configured to cancel a DC component of a resistance of the eye when an electrical current is caused to flow through the eye and the adjustable resistor. As such, the configured resistance value of the adjustable resistor is indicative of an impedance of the eye.

Impedance sensing circuits for ophthalmic devices

A method for designing ophthalmic lenses, including progressive addition lenses, and lenses produced by the method are provided. The method permits the direct correlation of an individual's subjective assessment of the lens' performance and the objective measure of lens performance relative to the individual. The method permits generation of lens designs based on the head and eye movement of the individual and the designing of customized lenses.

Method for designing spectacle lenses taking into account an individual's head and eye movement

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Riverdale, NY, United States of America

George A Zikos