Results 21 to 30 of about 2,212,140 (191)

The Argus-II Retinal Prosthesis Implantation; From the Global to Local Successful Experience

open access: yesFrontiers in Neuroscience, 2018
Over the past few years, visual prostheses (namely, Argus II retinal implant) and gene therapy have obtained FDA approval in treating blindness resulting from retinitis pigmentosa.
Mohsen Farvardin   +11 more
doaj   +1 more source

Enhanced Artificial Vision for Visually Impaired Using Visual Implants

open access: yesIEEE Access, 2023
Argus II is the most advanced retina implants approved by the US FDA and almost 350 visually impaired people are using it. This implant uses 60 microelectrodes implanted in the retina.
Hossein Mahvash Mohammadi   +2 more
doaj   +1 more source

Mobility enhancement and assessment for a visual prosthesis [PDF]

open access: yes, 2004
This paper investigates methods of processing mobility related static images to enhance the effectiveness of a visual prosthesis system. Eight images were processed into 50x50 pixel binary, greyscale, Sobel and Canny edge detected images.
Anthony Maeder   +4 more
core   +1 more source

Effects of extended powered knee prosthesis stance time via visual feedback on gait symmetry of individuals with unilateral amputation: a preliminary study

open access: yesJournal of NeuroEngineering and Rehabilitation, 2019
Background Establishing gait symmetry is a major aim of amputee rehabilitation and may be more attainable with powered prostheses. Though, based on previous work, we postulate that users transfer a previously-learned motor pattern across devices ...
Andrea Brandt   +4 more
doaj   +1 more source

A Model for Assessing the Electromagnetic Safety of an Inductively Coupled, Modular Brain-Machine Interface

open access: yesIEEE Transactions on Neural Systems and Rehabilitation Engineering, 2022
Brain-Machine Interfaces (BMI) offer the potential to modulate dysfunctional neurological networks by electrically stimulating the cerebral cortex via chronically-implanted microelectrodes. Wireless transmitters worn by BMI recipients must operate within
Julian Szlawski   +4 more
doaj   +1 more source

Use of cortical electrodes in solving visual prosthesis problems

open access: yesАнналы клинической и экспериментальной неврологии, 2017
There are two main approaches to visual function prosthesis in blindpatients with the use of brain-computer interfaces on the basisof either retinal or cortical stimulation by implanted electrodes. Themost complex in visual prosthesis is creation of the
B. Kh. Baziyan   +3 more
doaj   +1 more source

Effect of the electrode array-retina gap distance on visual function in patients with the Argus II retinal prosthesis

open access: yesBMC Ophthalmology, 2020
Background Post-implantation visual outcomes in patients with the Argus II Retinal Prosthesis is dependent on a multitude of factors including the positioning of the electrode array on the retina.
Abhishek Naidu   +3 more
doaj   +1 more source

Visuomotor behaviours when using a myoelectric prosthesis [PDF]

open access: yes, 2014
Background: A recent study showed that the gaze patterns of amputee users of myoelectric prostheses differ markedly from those seen in anatomically intact subjects.
Thies, Sibylle B.   +26 more
core   +1 more source

neuroBi: A Highly Configurable Neurostimulator for a Retinal Prosthesis and Other Applications

open access: yesIEEE Journal of Translational Engineering in Health and Medicine, 2015
To evaluate the efficacy of a suprachoroidal retinal prosthesis, a highly configurable external neurostimulator is required. In order to meet functional and safety specifications, it was necessary to develop a custom device.
Kyle D. Slater   +4 more
doaj   +1 more source

P3-7: On Prototyping a Visual Prosthesis System with Artificial Retina and Optic Nerve Based on Arrayed Microfibers

open access: yesi-Perception, 2012
The traditional visual prosthesis system combines both a camera and a microelectrode array implanted on the visual neural network including retina, optic nerve, and visual cortex.
Jian Hong Chen, Lon Alex Wang
doaj   +1 more source

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