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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: Sep 26, 2025

Retinal Pigment Epithelium Transplantation in a Non-human Primate Model for Degenerative Retinal Diseases

Retinal Pigment Epithelium Transplantation in a Non-human Primate Model for Degenerative Retinal Diseases

Published on: June 14, 2021

Advanced Retina Implants.

Mark S Humayun¹, Sun Young Lee²

¹University of Southern California Roski Eye Institute, University of Southern California Ginsburg Institute for Biomedical Therapeutics, University of Southern California, Los Angeles, California; Department of Ophthalmology, Keck School of Medicine, University of Southern California, Los Angeles, California; Department of Biomedical Engineering, Denney Research Center, University of Southern California, Los Angeles, California.

Ophthalmology. Retina

|April 18, 2022

Summary

This summary is machine-generated.

Advanced retinal implants show promise for restoring vision in degenerative eye diseases like retinitis pigmentosa and age-related macular degeneration. Bioelectronic and stem cell implants offer potential, with some already approved for clinical use.

Keywords:

Bioelectronic implant Retinal implant Stem cell implant

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

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Published on: August 2, 2013

Area of Science:

Ophthalmology
Biomedical Engineering
Regenerative Medicine

Background:

Inherited retinal degenerations and age-related macular degeneration cause significant vision loss.
Current treatments are limited, creating a need for innovative solutions.

Purpose of the Study:

To review the role and efficacy of advanced retinal implants.
To discuss bioelectronic and stem cell-based retinal implants for vision restoration.

Main Methods:

Literature review of published studies.
Analysis of clinical trial data on retinal implants.

Main Results:

Bioelectronic and stem cell retinal implants demonstrate potential for vision restoration.
The Argus II retinal implant is FDA-approved, indicating clinical progress.
Implants vary in design, implantation site, and safety profiles.

Conclusions:

Retinal implant design and surgical techniques are critical for successful long-term integration.
Further research is needed to optimize implant performance and patient outcomes.