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Retinal prostheses for the blind.

Michael Javaheri1, David S Hahn, Rohit R Lakhanpal

  • 1Doheny Retina Institute, Doheny Eye Institute, Department of Ophthalmology, Keck School of Medicine, University of Southern California, 1450 San Pablo Street (Room 3600), Los Angeles, CA 90033, USA.

Annals of the Academy of Medicine, Singapore
|April 21, 2006
PubMed
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Retinal prostheses offer hope for vision restoration in severe impairment. This review highlights the Epiretinal Intraocular Retinal Prosthesis and other visual prostheses, detailing their pros and cons.

Area of Science:

  • Biomedical Engineering
  • Neuroscience
  • Ophthalmology

Background:

  • Artificial vision restoration is advancing for untreatable vision loss.
  • Retinal prostheses aim to restore vision by electrically stimulating retinal neurons.
  • Conditions like retinitis pigmentosa and age-related macular degeneration are targets for these devices.

Purpose of the Study:

  • To review the development of implantable medical devices for vision restoration.
  • To focus on the Epiretinal Intraocular Retinal Prosthesis.
  • To compare different visual prosthesis modalities.

Main Methods:

  • A comprehensive literature search was conducted.
  • The review focuses on various retinal prostheses.
  • Clinical trial data and technological advancements are considered.

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Main Results:

  • Microtechnology has enabled diverse prostheses (cortical, optic nerve, intraocular).
  • Some visual prostheses have shown potential for restoring useful vision.
  • Different prosthesis types exhibit unique advantages and disadvantages.

Conclusions:

  • Retinal prostheses demonstrate promise in clinical trials for vision restoration.
  • The Epiretinal Intraocular Retinal Prosthesis is a key focus, alongside subretinal, cortical, and optic nerve prostheses.
  • Further research and development are ongoing for these advanced visual aids.