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CMOS circuits for a micro implantable intraocular vision aid

: Schwarz, M.; Hijazi, N.; Hosticka, B.J.

Verband der Elektrotechnik, Elektronik, Informationstechnik -VDE-:
MICRO.tec 2000. VDE World Microtechnologies Congress: Applications - Trends - Visions. Proceedings. Vol.2
Berlin: VDE-Verlag, 2000
ISBN: 3-8007-2579-7
S.457-459 : Lit.
World Microtechnologies Congress (MICROTEC) <2000, Hannover>
Fraunhofer IMS ()
CMOS image sensor; biomedical prosthesis; flexible electrostimulator; Bildsensor; CMOS-Sensor; Stimulation; Prothese

CMOS integrated microelectronic circuits developed for an intraocular vision aid for blind patients will be described. The system is a visual prosthesis based on an implantable intraocular optoelectronic display encapsulated into a silicone diaphragm, an is applicable for patients suffering from bilateral corneal opacification but with intact posterior ocular segment. The implantable part of the system employs CMOS circuitry for wireless power and data transmission using an 13 MHz RF-link for power transmission and a near IR optical link for data transmission. An external low power CMOS camera and telemetry unit are used to acquire, encode, and transmit images to implantable microdisplay as well as to supply power for the implant.