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Related Experiment Video

Updated: Mar 12, 2026

Techniques for Processing Eyes Implanted with a Retinal Prosthesis for Localized Histopathological Analysis: Part 2 Epiretinal Implants with Retinal Tacks
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[Technological Set-up of Epiretinal Implants].

W Mokwa1, M Görtz2

  • 1Institut für Werkstoffe der Elektrotechnik I, Rheinisch-Westfälische Technische Hochschule Aachen.

Klinische Monatsblatter Fur Augenheilkunde
|November 18, 2016
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Summary
This summary is machine-generated.

Visual prostheses restore sight in blind patients by electrically stimulating retinal cells. This technology uses an implantable device to process visual information and generate neural signals, leading to visual perception.

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Area of Science:

  • Biomedical Engineering
  • Neuroscience
  • Ophthalmology

Background:

  • Visual prostheses offer a potential solution for restoring vision in patients with blindness.
  • Electrical stimulation of retinal nerve cells is the core principle behind visual prostheses.

Purpose of the Study:

  • To explain the fundamental technological principles of retinal prostheses.
  • To detail the function of an epiretinal implantable visual prosthesis.

Main Methods:

  • Describing the extraocular and intraocular sections of an implantable visual prosthesis.
  • Explaining image detection, data encoding, and wireless transmission of information and energy.
  • Detailing data decoding and the generation of biphasic electrical pulses for retinal nerve cell stimulation.

Main Results:

  • The epiretinal implant processes visual input and transmits encoded data and energy wirelessly.
  • Stimulation electrodes generate precisely controlled electrical pulses based on the transmitted visual information.
  • Electrical stimulation of ganglion cells generates action potentials transmitted to the visual cortex, resulting in visual perception.

Conclusions:

  • Implantable visual prostheses leverage sophisticated technology to translate visual information into neural signals.
  • This technology holds promise for restoring a degree of visual perception in individuals with blindness.