Retinal prosthesis techniques
First Claim
Patent Images
1. Apparatus comprising:
- a light source configured to emit non-visible light, and to be disposed external to a human eye;
an intraocular device, comprising at least one receiver configured for implantation in the human eye, the at least one receiver having an image reception portion and an energy reception portion configured to receive a power signal from a non-visible light beam emitted from the external light source; and
at least one control unit configured to prevent reception of at least a portion of the power signal by the image reception portion.
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Abstract
Apparatus for use with an external non-visible light source is provided. The apparatus comprises an intraocular device configured for implantation in a human eye, and comprising an energy receiver. The energy receiver is configured to receive light emitted from the external non-visible light source, and extract energy from the emitted light for powering the intraocular device. The intraocular device is configured to regulate a parameter of operation of the intraocular device based on a modulation of the light emitted by the external non-visible light source and received by the energy receiver. Other embodiments are also described.
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Citations
9 Claims
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1. Apparatus comprising:
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a light source configured to emit non-visible light, and to be disposed external to a human eye; an intraocular device, comprising at least one receiver configured for implantation in the human eye, the at least one receiver having an image reception portion and an energy reception portion configured to receive a power signal from a non-visible light beam emitted from the external light source; and at least one control unit configured to prevent reception of at least a portion of the power signal by the image reception portion. - View Dependent Claims (2, 3, 4, 5)
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6. An intraocular device configured for epi-retinal implantation in a subject'"'"'s eye, and configured for use with a plurality of photosensors, each photosensor configured to detect ambient photons and to generate a signal in response thereto, the intraocular device comprising:
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a plurality of stimulating electrodes configured to penetrate a retinal layer of the subject'"'"'s eye; and driving circuitry, coupled to the photosensors, and configured to drive the electrodes to apply electrical pulses to a retina of the eye in response to the signal from the photosensors, wherein the driving circuitry is configured to vary a frequency of the pulses based on intensity of the ambient photons received by the photosensors. - View Dependent Claims (7, 8, 9)
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Specification