Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Video

Updated: Jun 1, 2026

The DREAM Implant: A Lightweight, Modular, and Cost-Effective Implant System for Chronic Electrophysiology in Head-Fixed and Freely Behaving Mice
08:42

The DREAM Implant: A Lightweight, Modular, and Cost-Effective Implant System for Chronic Electrophysiology in Head-Fixed and Freely Behaving Mice

Published on: July 26, 2024

Reading with a simulated 60-channel implant.

Angélica Pérez Fornos1, Jörg Sommerhalder, Marco Pelizzone

  • 1Ophthalmology Clinic, Department of Clinical Neurosciences, Geneva University Hospitals Geneva, Switzerland.

Frontiers in Neuroscience
|June 1, 2011
PubMed
Summary

This study explored reading performance with a 60-channel retinal implant. Optimal image magnification and viewing window orientation can restore reading ability, suggesting potential for future visual prosthetics.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Comparison of Quality of Life Between Patients with Chronic Unilateral Vestibular Hypofunction and Bilateral Vestibulopathy.

The journal of international advanced otology·2026
Same author

Unperturbed and perturbed gait variability is increased in bilateral vestibulopathy compared with age- and sex-matched healthy participants.

Journal of neurophysiology·2026
Same author

A Hand-Guided Robotic Drill for Vestibular Implant Surgery-Feasibility of Preventing Membranous Labyrinth Rupture.

Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale·2026
Same author

Assessment of dynamic stability and identification of key tasks, inertial sensors, and parameters in patients with bilateral and unilateral vestibulopathy: investigation in a semi-standardized environment.

Journal of neuroengineering and rehabilitation·2026
Same author

Characterization of head movement patterns in patients with bilateral and unilateral vestibulopathy during functional mobility tasks.

Frontiers in neuroscience·2026
Same author

Protocol for assessing functional impairments in patients with unilateral and bilateral vestibulopathy: a novel approach to evaluate the impact of vestibular loss in daily life setting.

Frontiers in neurology·2025

Area of Science:

  • Biomedical Engineering
  • Ophthalmology
  • Neuroscience

Background:

  • Current first-generation retinal prostheses with 50-60 electrodes are in clinical trials.
  • Restoring reading ability is a key goal for visual prostheses.

Purpose of the Study:

  • To determine the theoretical maximum reading performance with a 60-channel retinal implant.
  • To identify optimal viewing conditions for reading tasks using this device.

Main Methods:

  • Four normally sighted volunteers performed text reading tasks using a stabilized, low-resolution 60-pixel viewing window.
  • Key parameters varied included spatial resolution (image magnification) and viewing window orientation.
  • Reading accuracy and rate (words/min) were the primary performance metrics.
Keywords:
field of viewneurosciencepsychophysicsreadingresolutionretinal prosthesessimulation of artificial visionspatial vision

More Related Videos

Chronic Implantation of Multiple Flexible Polymer Electrode Arrays
08:54

Chronic Implantation of Multiple Flexible Polymer Electrode Arrays

Published on: October 4, 2019

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
06:54

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation

Published on: August 4, 2023

Related Experiment Videos

Last Updated: Jun 1, 2026

The DREAM Implant: A Lightweight, Modular, and Cost-Effective Implant System for Chronic Electrophysiology in Head-Fixed and Freely Behaving Mice
08:42

The DREAM Implant: A Lightweight, Modular, and Cost-Effective Implant System for Chronic Electrophysiology in Head-Fixed and Freely Behaving Mice

Published on: July 26, 2024

Chronic Implantation of Multiple Flexible Polymer Electrode Arrays
08:54

Chronic Implantation of Multiple Flexible Polymer Electrode Arrays

Published on: October 4, 2019

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
06:54

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation

Published on: August 4, 2023

Main Results:

  • Peak reading performance occurred at spatial resolutions of 3.6 to 6 pixels per character.
  • Optimal viewing conditions (4.5 pixels/char) yielded near-perfect accuracy.
  • Mean reading rates were 26 words/min (vertical window) and 34 words/min (horizontal window).

Conclusions:

  • Theoretical reading capabilities can be restored with current retinal implant technology under specific optimal conditions.
  • Image magnification within an optimal range is crucial for effective reading.
  • Future implants with higher resolution may enable even faster reading rates.