Patent ID: 8608310

Claim:
A powered contact lens formed from a transparent substrate shaped to be worn directly over a user's eye, the contact lens comprising: (a) an annular antenna disposed at a margin of the contact lens, wherein the antenna is configured to both receive a power signal and transmit a data signal; (b) a biosensor module configured to measure a characteristic of the user's eye, the biosensor module comprising an electromechanical sensor comprising: (i) a working electrode; (ii) a counter electrode; (iii) a reference electrode; and (iv) a biosensor circuit configured to measure the voltage of the working electrode, the counter electrode, and the reference electrode, and to transmit a biosensor signal; wherein the working electrode, the counter electrode, and the reference electrode are all configured to be in electronic communication when the contact lens is worn on the user's eye; and (c) a communications module configured to: (i) process the power signal from the antenna to provide operational power to the biosensor module; and (ii) process the biosensor signal to provide the data signal to the antenna.