The goal is to develop an instrument for safe, quick, anesthesia-free measurement of intraocular pressure through the lower eyelid. Pressure is indicated by resonant properties of the eyeball. A low-frequency exciter vibrates the eyelid, vibrational energy flow from the exciter is measured, and elicited eyeball responses are measured by ultrasound. Data analysis spanning frequency and pressure variations yields a reliable estimate of intraocular pressure and its time variations.The project's objectives are to demonstrate an instrument on a mechanical eyeball analog, obtain accuracy data, determine required eye exposure to low-frequency vibrations and ultrasound energy, and evaluate the safety of the device.National Eye Institute (NEI)
