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Visual prostheses for the blind

Paper ID Volume ID Publish Year Pages File Format Full-Text
37239 45327 2013 10 PDF Available
Title
Visual prostheses for the blind
Abstract

•Visual prostheses are designed to provide artificial vision to blind patients by electrically stimulating localized neural populations in the retina or visual cortex.•Significant technological challenges required solutions during development of these devices including surgical access and mechanical stability, hardware miniaturization, hermetic encapsulation, electrode development, and signal processing.•After >40 years of research visual prostheses are moving from the laboratory into the clinic.•Positive clinical outcomes with visual prostheses will be dependent on appropriate training and brain plasticity in addition to these advances in technology.

After more than 40 years of research, visual prostheses are moving from the laboratory into the clinic. These devices are designed to provide prosthetic vision to the blind by stimulating localized neural populations in one of the retinotopically organized structures of the visual pathway – typically the retina or visual cortex. The long gestation of this research reflects the many significant technical challenges encountered including surgical access, mechanical stability, hardware miniaturization, hermetic encapsulation, high-density electrode arrays, and signal processing. This review provides an introduction to the pathophysiology of blindness; an overview of existing visual prostheses, their advantages and drawbacks; the perceptual effects evoked by electrical stimulation; as well as the role played by plasticity and training in clinical outcomes.

Keywords
neural prosthesis; electrical stimulation; electrodes; blindness; bionic vision
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Visual prostheses for the blind
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Publisher
Database: Elsevier - ScienceDirect
Journal: - Volume 31, Issue 10, October 2013, Pages 562–571
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us