abstract |
A device for determination of a tear constituent, including an absorbent tear strip wick and an electrochemical strip connected to one end of the wick. The electrochemical strip is impregnated with an indicator chemistry. The device may be used to detect organic and ionic constituents in tears by placement of the free end of the tear strip wick in the corner of the eye, and after tear absorption by the device, determining changes in the chemistry of the device associated with the particular constituent. |