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A Standardized Obstacle Course for Assessment of Visual Function in Ultra Low Vision and Artificial Vision

A Standardized Obstacle Course for Assessment of Visual Function in Ultra Low Vision and Artificial Vision

Published on: February 11, 2014

Diamond Devices for High Acuity Prosthetic Vision.

Arman Ahnood¹, Hamish Meffin^2,3, David J Garrett¹

¹School of Physics, University of Melbourne, Victoria, 3010, Australia.

Advanced Biosystems

|July 11, 2020

Summary

New retinal prostheses using engineered diamond materials offer higher information density for improved vision restoration. These implants are stable and versatile, aiming to overcome current limitations in visual acuity for prosthetic vision users.

Keywords:

diamond electrodes diamond encapsulation high acuity neuronal stimulators retinal implants

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Last Updated: Dec 15, 2025

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Area of Science:

Biomedical Engineering
Materials Science
Ophthalmology

Background:

Current retinal implants offer limited visual acuity due to low information transfer capacity.
Existing technologies do not fully utilize the retina's receptor cell capabilities.
There is a need for advanced retinal prostheses to enhance vision restoration.

Purpose of the Study:

To introduce a novel generation of retinal prostheses designed for increased information density.
To leverage engineered diamond materials for improved retinal implant performance.
To enhance the potential for high-acuity prosthetic vision.

Main Methods:

Development of a new retinal prosthesis centered on engineered diamond.
Evaluation of the implant's biocompatibility and long-term stability in ocular environment.
Characterization of the device's capability to deliver versatile stimulation waveforms.

Main Results:

The engineered diamond-based implant demonstrates excellent biocompatibility and stability.
The device is capable of delivering high-density information transfer to the retina.
The prosthesis supports versatile stimulation waveform delivery.

Conclusions:

This new generation of retinal prostheses shows promise for significantly improving visual acuity.
Engineered diamond materials are well-tolerated and stable, crucial for effective prosthetic vision.
High-density information delivery with flexible in situ parameter adjustment offers the best path to high-acuity prosthetic vision.