Visual task performance in blind humans with retinal prosthetic implants

Author

Weiland, J.D. ; Yanai, D. ; Mahadevappa, M. ; Williamson, R. ; Mech, B.V. ; Fujii, G.Y. ; Little, J. ; Greenberg, R.J. ; De Juan, E., Jr. ; Humayun, M.S.

Author_Institution

Dept. of Ophthalmology, Southern California Univ., Los Angeles, CA, USA

Volume

2

fYear

2004

fDate

1-5 Sept. 2004

Firstpage

4172

Lastpage

4173

Abstract

A prototype electronic retinal prosthesis has been tested in three subjects. The system features an implanted retinal stimulator and an external system for image acquisition, processing, and telemetry. The subjects in general performed better than chance on psychophysical tests involving object detection, object counting, object discrimination, and direction of movement.

Keywords

biomedical electronics; biomedical telemetry; eye; prosthetics; vision; blind humans; electronic retinal prosthetic implants; image acquisition; image processing; implanted retinal stimulator; movement direction; object counting; object detection; object discrimination; psychophysical tests; telemetry; visual task performance; Electronic equipment testing; Humans; Implants; Object detection; Performance evaluation; Prosthetics; Prototypes; Psychology; Retina; Telemetry; electrical stimulation; neural engineering; neural prosthesis; visual prosthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2004. IEMBS '04. 26th Annual International Conference of the IEEE

Conference_Location

San Francisco, CA

Print_ISBN

0-7803-8439-3

Type

conf

DOI

10.1109/IEMBS.2004.1404164

Filename

1404164