• Users Online: 37
  • Home
  • Print this page
  • Email this page
Home Current issue Ahead of print Search About us Editorial board Archives Submit article Instructions Subscribe Contacts Login 
REVIEW ARTICLE
Year : 2014  |  Volume : 9  |  Issue : 4  |  Page : 494-505

Visual prostheses: The enabling technology to give sight to the blind


1 Research Laboratory for Integrated Circuits and Systems (ICAS), Electrical Engineering Department, K.N. Toosi University of Technology, Tehran, Iran
2 Research Laboratory for Integrated Circuits and Systems (ICAS), Electrical Engineering Department, K.N. Toosi University of Technology, Tehran; Electrical Engineering Department, Polytechnique Montreal, Montreal, Quebec, Canada
3 Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran

Correspondence Address:
Mohammad Riazi-Esfahani
Eye Research Center, Farabi Eye Hospital, Qazvin Sq., Tehran
Iran
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2008-322X.150830

Rights and Permissions

Millions of patients are either slowly losing their vision or are already blind due to retinal degenerative diseases such as retinitis pigmentosa (RP) and age-related macular degeneration (AMD) or because of accidents or injuries. Employment of artificial means to treat extreme vision impairment has come closer to reality during the past few decades. Currently, many research groups work towards effective solutions to restore a rudimentary sense of vision to the blind. Aside from the efforts being put on replacing damaged parts of the retina by engineered living tissues or microfabricated photoreceptor arrays, implantable electronic microsystems, referred to as visual prostheses, are also sought as promising solutions to restore vision. From a functional point of view, visual prostheses receive image information from the outside world and deliver them to the natural visual system, enabling the subject to receive a meaningful perception of the image. This paper provides an overview of technical design aspects and clinical test results of visual prostheses, highlights past and recent progress in realizing chronic high-resolution visual implants as well as some technical challenges confronted when trying to enhance the functional quality of such devices.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed2775    
    Printed20    
    Emailed0    
    PDF Downloaded239    
    Comments [Add]    
    Cited by others 5    

Recommend this journal