Abstract: Disclosed herein are devices, methods, and systems for monitoring the position of a subjects head and/or provide instruction to bring the subject's head into a desired position, to perform a desired movement, or a series of head positions and/or movements.

Abstract: Certain embodiments are directed to a device alerts patients to when an eye drop is due and whether an eye drop has already been administered. Other embodiments include a device that helps the patients to keep their heads tilted at certain positioning after a retinal tear or detachment repair. The device provides feedback to the ophthalmologist on the patient's compliance with the eye drops regimen. The device provides a direct measure of how well the patient adheres to the eye drops required by the physician. This allows the ophthalmologist to adequately assess whether a medical regimen or surgical regimen is failing due to patient compliance or treatment failure.

Abstract: An portable apparatus and method for troubleshooting and determining the integrity of cables and wiring harnesses requiring connection to only one end of the cable or wiring harness to be tested. A series of tests are conducted to determine the integrity of each wire within the cable or wiring harness. The data is then evaluated and compared to the data of a known good cable or wiring harness stored in a memory device or CD-ROM. The faulty cable or wiring harness, if any, are displayed along with a list of shorts or opens present between cables or between a cable and aircraft ground, and the exact distance to any detected fault.