Results 1 to 10 of about 272,086 (189)

Visual BOLD Response in Late Blind Subjects with Argus II Retinal Prosthesis. [PDF]

open access: yesPLoS Biology, 2016
Retinal prosthesis technologies require that the visual system downstream of the retinal circuitry be capable of transmitting and elaborating visual signals.
E Castaldi   +5 more
doaj   +2 more sources

Wireless retina implant with optical energy supply

open access: yesCurrent Directions in Biomedical Engineering, 2020
We present the first results of work towards a foil-based epiretinal prosthesis that can stimulate retinal cells. The prosthesis receives trigger signals and energy in the form of high intensity infrared radiation.
Velten Thomas   +12 more
doaj   +1 more source

Effects on Retinal Stimulation of the Geometry and the Insertion Location of Penetrating Electrodes

open access: yesIEEE Transactions on Neural Systems and Rehabilitation Engineering, 2023
Retinal implants have been developed and implanted to restore vision from outer retinal degeneration, but their performance is still limited due to the poor spatial resolution.
Yunseo Son   +4 more
doaj   +1 more source

Design and validation of a foldable and photovoltaic wide-field epiretinal prosthesis

open access: yesNature Communications, 2018
Retinal prostheses are being developed to fight severe retinal diseases where wider visual field and higher visual acuity are desired. Here Ferlauto et al.
Laura Ferlauto   +8 more
doaj   +1 more source

An Argus II Case Report

open access: yesBeyoglu Eye Journal, 2017
The Argus II Retinal Prosthesis System (Second Sight Medical Products, Inc., Sylmar, CA, USA) is the first US Food and Drug Administration-approved retinal implant.
İrfan Perente   +2 more
doaj   +1 more source

Prosthetic Rehabilitation of Completely Blind Subject with Bilateral Customised Ocular Prosthesis: A Case Report [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2017
The special sensory organs play significant role in our daily lives. Until one of them is totally or partially lost, its real value is not fully appreciated. The most tragic, yet common loss of sensory organ is that of an eye.
Chetan Pathak   +4 more
doaj   +1 more source

Noninvasive imaging-guided ultrasonic neurostimulation with arbitrary 2D patterns and its application for high-quality vision restoration

open access: yesNature Communications
Retinal degeneration, a leading cause of irreversible low vision and blindness globally, can be partially addressed by retina prostheses which stimulate remaining neurons in the retina.
Gengxi Lu   +15 more
doaj   +1 more source

Non-fullerene acceptor based photoelectric material for retinal prosthesis

open access: yesMicro and Nano Systems Letters, 2023
Microelectronic retinal implants can restore a useful level of artificial vision in photoreceptor-damaged retina. Previously commercialized retinal prostheses require transocular connection lines to an external power supply and/or for data transmission ...
Hyunsun Song   +5 more
doaj   +1 more source

Modeling and Experimental Validation of a Butterfly-Shaped Wireless Power Transfer in Biomedical Implants

open access: yesIEEE Access, 2019
Wireless power transfer (WPT) presents a safe and robust method for powering biomedical implants. The range and misalignment tolerance restrictions of the WPT system are the main factors, conducive to the transfer efficiency degradation.
Nam Ha-Van, Chulhun Seo
doaj   +1 more source

First-in-human trial of a novel suprachoroidal retinal prosthesis. [PDF]

open access: yesPLoS ONE, 2014
Retinal visual prostheses ("bionic eyes") have the potential to restore vision to blind or profoundly vision-impaired patients. The medical bionic technology used to design, manufacture and implant such prostheses is still in its relative infancy, with ...
Lauren N Ayton   +22 more
doaj   +1 more source

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