Patent ID: 9671619
Date: 2017-06-06
CPC Classifications: A61B,A61F,G02C

Claim:
1. A powered ophthalmic lens, the powered ophthalmic lens comprising: a contact lens including an optic zone and a peripheral zone; and an eye gaze tracking system incorporated into the peripheral zone of the contact lens, the eye gaze tracking system including a sensor to determine and track eye position, a signal conditioning circuit, including a filter to compensate for visual physiology for a particular user's eye, the filter including at least one of hardware or software tuned to a user's natural eye behavior and including an adaptive algorithm for continually refining the eye gaze operation of the ophthalmic lens, a system controller cooperatively associated with the sensor, the system controller configured to determine and track gaze direction in spatial coordinates based on information from the sensor that has passed through the signal conditioning circuit and output a control signal, and at least one actuator configured to receive the output control signal and implement a predetermined function based on a signal from the system controller to change the state of the contact lens, the output control signal being a function of the filtered signal from the sensor.