Brain Chip Could Restore Sight for the Blind.

A team of researchers has developed a cutting-edge vision implant featuring ultra-small electrodes, comparable in size to neurons, with the goal of restoring sight for visually impaired individuals.

These vision implants utilize microscopic electrodes to transmit signals to the brain, mimicking visual information much like pixels composing an image.

The reduction in electrode size allows for more electrodes to be packed into a single implant, enhancing brain stimulation and providing users with clearer and more detailed visual representations, according to claims by the research team.

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The clarity of the image generated is crucial, given that the brain’s interpretation of these signals does not match the natural clarity experienced by individuals with unimpaired vision.

The implant incorporates a unique combination of materials designed to prevent corrosion. This includes a conducting polymer that not only transmits electrical signals but also acts as a protective layer over the metal.

The research team emphasizes that this material blend is essential for ensuring the implant’s durability and optimal performance. Maria Asplund, the project leader and co-author of the study, commented:

“We now have proof that we can create electrodes as small as neurons and maintain their effectiveness in the brain over extended periods. The next phase involves developing an implant capable of accommodating thousands of electrodes.”

Early preclinical trials have shown promising results. Initial experiments with mice suggest that the implant can effectively stimulate visual perception using minimal electrical power.


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