Cited by 19Neuroscience and Neural EngineeringTactile and Sensory InteractionsVisual perception and processing mechanisms

Advances in neuroscience, not devices, will determine the effectiveness of visual prostheses

Abbasi, Bardia, Rizzo, Joseph F.·2021·Seminars in Ophthalmology

Abstract

Background: Innovations in engineering and neuroscience have enabled the development of sophisticated visual prosthetic devices. In clinical trials, these devices have provided visual acuities as high as 20/460, enabled coarse navigation, and even allowed for reading of short words. However, long-term commercial viability arguably rests on attaining even better vision and more definitive improvements in tasks of daily living and quality of life. Purpose: Here we review technological and biological obstacles in the implementation of visual prosthetics. Conclusions: Research in the visual prosthetic field has tackled significant technical challenges, including biocompatibility, signal spread through neural tissue, and inadvertent activation of passing axons; however, significant gaps in knowledge remain in the realm of neuroscience, including the neural code of vision and visual plasticity. We assert that further optimization of prosthetic devices alone will not provide markedly improved visual outcomes without significant advances in our understanding of neuroscience.

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Crossref · 10.1080/08820538.2021.1887902

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  • The LGN presents retinotopic organisation and well-defined physical separation of the parvocellular and magnocellular pathways.

    “Third, LGN presents retinotopic organisation and well-defined physical separation of the parvocellular and magnocellular pathways, respectively relaying information about small, slow, colourful things (parvocellular; high spatial frequency information; low temporal frequency information) and large, fast, and colourless things (magnocellular; low spatial frequency; high temporal frequency) [37,80].”

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Authors
Abbasi, B., & Rizzo, J. F.
Affiliations
Massachusetts Eye and Ear Infirmary (US)
Corresponding author
Rizzo, Joseph F.
Venue
Seminars in Ophthalmology
Published
2021-03-18
Volume
36
Issue
4
Pages
168-175
ISSN
  • 0882-0538 (ISSN-L)
  • 1744-5205
OpenAlex
W3137926359
Cited by
19
References
122
Citations by year
2025: 2 · 2024: 8 · 2023: 2 · 2022: 6 · 2021: 1
FWCI
0.64
Type
journal article
Language
en
Open access
closed
Locations
  • Seminars in Ophthalmology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
Keywords
retinal prosthesis, visual plasticity, biocompatibility, visual acuity, quality of life
MeSH terms
Humans, Quality of Life, Reading, Vision, Ocular, Visual Acuity, Visual Prosthesis

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