Visual prosthesis fitting
First Claim
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1. A method for fitting a visual prosthesis having a plurality of electrodes, the method comprising:
- selecting one electrode from among a first electrode and subsequent electrodes as a standard electrode;
determining a first perceived brightness level on the standard electrode by patient feed back, wherein the first perceived brightness level on the standard electrode is elicited by a first stimulation amplitude;
approximating the first perceived brightness level on a second electrode by setting a second stimulation level to be applied to the second electrode to the first stimulation amplitude applied on the standard electrode;
refining the second stimulation amplitude on the second electrode using further patient feedback to elicit the first perceived brightness level on the second electrode; and
creating and storing a map of brightness to electrode stimulation amplitudes based on the established stimulation amplitudes for the standard electrode and the second electrode,wherein the first and second stimulation amplitudes are provided by a stimulation system.
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Abstract
Methods and devices for fitting a visual prosthesis are described. In one of the methods, threshold levels and maximum levels for the electrodes of the prosthesis are determined and a map of brightness to electrode stimulation levels is later formed. A fitting system for a visual prosthesis is also discussed, together with a computer-operated system having a graphical user interface showing visual prosthesis diagnostic screens and visual prosthesis configuration screens.
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Citations
16 Claims
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1. A method for fitting a visual prosthesis having a plurality of electrodes, the method comprising:
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selecting one electrode from among a first electrode and subsequent electrodes as a standard electrode; determining a first perceived brightness level on the standard electrode by patient feed back, wherein the first perceived brightness level on the standard electrode is elicited by a first stimulation amplitude; approximating the first perceived brightness level on a second electrode by setting a second stimulation level to be applied to the second electrode to the first stimulation amplitude applied on the standard electrode; refining the second stimulation amplitude on the second electrode using further patient feedback to elicit the first perceived brightness level on the second electrode; and creating and storing a map of brightness to electrode stimulation amplitudes based on the established stimulation amplitudes for the standard electrode and the second electrode, wherein the first and second stimulation amplitudes are provided by a stimulation system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification