Cited by 83Neuroscience and Neural EngineeringTactile and Sensory InteractionsVisual perception and processing mechanisms

Psychophysical evaluation for visual prosthesis

Dagnelie, Gislin·2008·Annual Review of Biomedical Engineering

Abstract

Vision restoration through retinal, optic nerve, and cortical implants is no longer just the stuff of fantasy. The design and development of visual prostheses rapidly move from the engineering phase toward preclinical and clinical trials, yet the benchmarks to determine their efficacy in blind research subjects have received very little attention, and likewise the selection criteria and preparation of early recipients of these devices. This article examines the aspects of vision for which prostheses may be of help, the selection of early prosthesis wearers, and the pre- and postimplant evaluations required to assess safety and efficacy. I concentrate on the functional assessment, and particularly on psychophysical methodology, but also address other measures of safety and efficacy, as well as approaches to vision rehabilitation with visual prostheses. Finally, I speculate what roles the first few generations of visual prostheses may play, and emphasize the importance of using simulations to support the development and rehabilitation process.

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Crossref · 10.1146/annurev.bioeng.10.061807.160529

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  • A biophysically-grounded simulation model for the functional evaluation of cortical prosthetic vision remains to be developed.

    “Even though scientists increasingly realize that more realistic models of phosphene vision are required to narrow the gap between simulations and reality (Han et al., 2021; Dagnelie, 2008), a biophysically-grounded simulation model for the functional evaluation of cortical prosthetic vision remains to be developed.”
  • A realistic simulator could also be used as support in the rehabilitation process, assisting clinicians and caregivers in identifying potential problematic situations and adapt preprocessing or stimulation protocols accordingly.

    “A realistic simulator could also be used as support in the rehabilitation process, assisting clinicians and caregivers in identifying potential problematic situations and adapt preprocessing or stimulation protocols accordingly (Dagnelie, 2008).”

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Authors
Dagnelie, G.
Affiliations
Johns Hopkins University (US)
Corresponding author
Dagnelie, Gislin
Venue
Annual Review of Biomedical Engineering
Published
2008-08-01
Volume
10
Issue
1
Pages
339-368
ISSN
  • 1523-9829 (ISSN-L)
  • 1545-4274
OpenAlex
W2130794990
Cited by
82
References
130
Citations by year
2026: 1 · 2024: 3 · 2023: 2 · 2022: 1 · 2021: 2 · 2020: 3 · 2019: 4 · 2018: 6 · 2017: 1 · 2016: 3 · 2015: 2 · 2014: 7 · 2013: 11 · 2012: 5
FWCI
0.83
Type
journal article
Language
en
Open access
closed
Locations
  • Annual Review of Biomedical Engineering (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Eye Institute (R01EY012843)
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, cortical implants, psychophysical testing, visual rehabilitation, blind patients, prosthesis selection, treatment efficacy and safety, simulation
MeSH terms
Blindness, Humans, Psychophysics, Vision Tests, Equipment Failure Analysis, Prostheses and Implants

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