Utilization of a contact device placed on the eye in order to detect physical and chemical parameters of the body as well as the non-invasive delivery of compounds according to these physical and chemical parameters, with signals being transmitted continuously as electromagnetic waves, radio waves, infrared...http://www.google.de/patents/US7403805?utm_source=gb-gplus-sharePatent US7403805 - Apparatus and method for noninvasive measurement of analytes from the conjunctiva using mid-infrared radiation
