Intraocular pressure measurement devices using the micro reflected air pressure sensor for the pre-diagnosis of the glaucoma

This work suggested the novel portable tonometer using the micro reflected air pressure sensor for the pre-diagnosis of glaucoma. Because of glaucoma is slowly progressed and not painful, glaucoma patients require a portable pre-diagnosis system which periodically measures the intraocular pressure (IOP) at home. Conventionally IOP was measured by air-puff tonometer where cornea was deformed by short pulse of air pressure and magnitude of the corneal deformation was measured by optic systems such as combination of laser- and photo-diodes. In this work, the micro reflected air pressure sensor was designed, fabricated and tested in order to measure magnitude of the corneal deformation without optic systems. In experimental study, the artificial eyes which had different internal pressures were fabricated, and the internal pressures were measured by the suggested systems.