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  • Title: [Technical construction, calibration and results with a new intraocular pressure sensor with telemetric transmission].
    Author: Hille K, Draeger J, Eggers T, Stegmaier P.
    Journal: Klin Monbl Augenheilkd; 2001 May; 218(5):376-80. PubMed ID: 11417341.
    Abstract:
    BACKGROUND: Presently intraocular pressure is measured indirectly by applanation or impression of the cornea. Only isolated values are available with this method. We present a new implantable system for direct and continuos measurement of the intraocular pressure. METHODS: An implantable system consisting of a miniaturized sensor and a telemetric unit was integrated in an intraocular lens. The eye pressure is determined by the sensor, modulated and transduced by the telemetric system. By an extracorporal receiver the signal is demodulated. The electric supply of the intraocular system is achieved by external electromagnetic induction. RESULTS: The telemetric transmission of the intraocular pressure can be achieved with an accuracy of +/- 1 mm Hg and a frequency of registration of 3 values per second. CONCLUSION: Clinical application necessitates further animal trials in vivo.
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