ANALYTE SENSOR

1 . An analyte monitoring system, the system comprising:

an electrochemical sensor configured to measure a level of an analyte in a biological sample from a patient, wherein the biological sample is a tear, wherein the sensor is configured to be fastened to a portion of a patient's body, wherein the sensor is configured to be powered by inductive coupling, wherein the sensor comprises:

a first wire comprising a working electrode configured to generate a signal indicative of an analyte concentration;

a second wire comprising a reference electrode; and

a third wire comprising a counter electrode; and

sensor electronics configured to operatively connected to the sensor, wherein

the sensor electronics are configured to process data obtained from the sensor.

2 . The system of claim 1 , wherein the first wire, second wire, and third wire are formed of metal.

3 . The system of claim 1 , wherein the first wire comprises platinum.

4 . The system of claim 1 , wherein the second wire comprises silver/silver chloride.

5 . The system of claim 1 , wherein the third wire comprises platinum.

6 . The system of claim 1 , wherein at least one of the first wire, second wire, or third wire is in a coiled configuration during sensor use.

7 . The system of claim 1 , wherein the sensor further comprises a membrane comprising an enzyme configured to react with the analyte, wherein at least a portion of the working electrode is covered by the membrane.

8 . The system of claim 7 , wherein the enzyme is configured to react with glucose to produce hydrogen peroxide.

9 . The system of claim 8 , wherein the working electrode is configured to oxidize hydrogen peroxide to generate the signal indicative of the analyte concentration.

10 . The system of claim 7 , wherein the membrane is disposed coaxially with the working electrode.

11 . The system of claim 1 , wherein the analyte is glucose.

12 . The system of claim 1 , wherein the sensor is configured to monitor the analyte continuously.