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The microsystems based visual prosthesis for optic nerve stimulation.

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Delbeke, Jean [UCL] Wanet-Defalque, M C Gérard, Benoît [UCL] Troosters, M. Michaux, Ginette [UCL] Veraart, Claude [UCL]

The microsystems based visual prosthesis (MiViP) visual prosthesis generates visual perceptions well below safety and stimulator saturation limits. These perceptions, called phosphenes, are of reasonably small size and are broadly distributed in the visual field. They can thus be used to convey useful visual information. Psychophysical evaluations are being performed in order to assess the implantee's benefits in the use of the MiViP optic nerve visual prosthesis. In a pattern-recognition task, the performance improved regularly with practice with an increasing score and a decreasing delay to recognition. These observations open the way toward an evaluation of general mobility improvement with the portable system. In conclusion, the results obtained so far still support the potential usefulness of the optic nerve visual prosthesis. A low-resolution artificial vision can be expected from the prosthesis after extensive training.

Document type Article de périodique (Journal article) – Case Reports, Journal Article, Research Support, Non-U.S. Gov't
Access type Accès restreint
Publication date 2002
Journal information "Artificial organs" - Vol. 26, no. 3, p. 232-4 (2002)
Peer reviewed yes
issn 0160-564X
Publication status Publié
Affiliations UCL - MD/FSIO - Département de physiologie et pharmacologie
UCL - FLTR/ROM - Département d'études romanes
MESH Subject Electric Stimulation - methods ; Electrodes, Implanted ; Eye, Artificial ; Female ; Humans ; Microelectrodes ; Middle Aged ; Optic Nerve - physiology ; Retinitis Pigmentosa - physiopathology - rehabilitation ; Visual Perception - physiology
Links
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Bibliographic reference Delbeke, Jean ; Wanet-Defalque, M C ; Gérard, Benoît ; Troosters, M. ; Michaux, Ginette ; et. al. The microsystems based visual prosthesis for optic nerve stimulation.. In: Artificial organs, Vol. 26, no. 3, p. 232-4 (2002)
Permanent URL http://hdl.handle.net/2078.1/9123