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The Retina

The Retina

The retina is a layer of nervous tissue at the back of the eye that transduces light into neural signals. This process, called phototransduction, is carried out by rod and cone photoreceptor cells in the back of the retina.

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Related Experiment Video

Updated: Jun 21, 2026

Techniques for Processing Eyes Implanted With a Retinal Prosthesis for Localized Histopathological Analysis

Techniques for Processing Eyes Implanted With a Retinal Prosthesis for Localized Histopathological Analysis

Published on: August 2, 2013

[A discussion about key issues in retinal prosthesis].

Chenglin Peng¹, Lu Xia, Xing Wang

¹Institute of Biomedical & Electrical Engineering, Chongqing University, Chongqing 400044, China.

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi = Journal of Biomedical Engineering = Shengwu Yixue Gongchengxue Zazhi

|July 29, 2009

Summary

This summary is machine-generated.

Retinal prosthesis offers sight restoration for visual deterioration caused by retinitis pigmentosa (RP) and age-related macular degeneration (AMD). This review discusses the technology, current research, and challenges for artificial vision recovery.

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Techniques for Processing Eyes Implanted with a Retinal Prosthesis for Localized Histopathological Analysis: Part 2 Epiretinal Implants with Retinal Tacks

Techniques for Processing Eyes Implanted with a Retinal Prosthesis for Localized Histopathological Analysis: Part 2 Epiretinal Implants with Retinal Tacks

Published on: February 14, 2015

Computational Modeling of Retinal Neurons for Visual Prosthesis Research - Fundamental Approaches

Computational Modeling of Retinal Neurons for Visual Prosthesis Research - Fundamental Approaches

Published on: June 21, 2022

Related Experiment Videos

Last Updated: Jun 21, 2026

Techniques for Processing Eyes Implanted With a Retinal Prosthesis for Localized Histopathological Analysis

Techniques for Processing Eyes Implanted With a Retinal Prosthesis for Localized Histopathological Analysis

Published on: August 2, 2013

Techniques for Processing Eyes Implanted with a Retinal Prosthesis for Localized Histopathological Analysis: Part 2 Epiretinal Implants with Retinal Tacks

Techniques for Processing Eyes Implanted with a Retinal Prosthesis for Localized Histopathological Analysis: Part 2 Epiretinal Implants with Retinal Tacks

Published on: February 14, 2015

Computational Modeling of Retinal Neurons for Visual Prosthesis Research - Fundamental Approaches

Computational Modeling of Retinal Neurons for Visual Prosthesis Research - Fundamental Approaches

Published on: June 21, 2022

Area of Science:

Biomedical Engineering
Ophthalmology
Neuroscience

Context:

Retinitis pigmentosa (RP) and age-related macular degeneration (AMD) are leading causes of irreversible vision loss.
Current treatments for RP and AMD are limited, creating a need for innovative solutions.
Artificial vision technologies aim to restore functional sight to individuals with severe visual impairment.

Purpose:

To review the fundamental principles and theoretical basis of retinal prosthesis technology.
To provide an overview of the current global research landscape and advancements in retinal prostheses.
To identify and critically analyze the key challenges hindering the clinical application and widespread adoption of retinal implants.

Summary:

Retinal prostheses utilize micro-electronic chips or diode arrays implanted in the retina to electrically stimulate remaining neural pathways.
This stimulation aims to generate visual percepts, offering a degree of sight restoration for patients with RP and AMD.
The paper examines the underlying theories, international research efforts, and significant obstacles that need to be overcome for successful implementation.

Impact:

Highlights the potential of retinal prostheses as a transformative approach to artificial vision.
Identifies critical research and development areas required to improve device efficacy and patient outcomes.
Offers insights and recommendations for future directions in the field of visual neuroprosthetics.