Non-invasive retinal stimulation
After years of non-invasive electrophysiology — EEG during sleep, EMG for facial expressions, finger gesture recognition, and much more — we've crossed a new threshold.
We recently took our first steps into stimulation. It started with peripheral nerve stimulation in the neck, which we reported on not long ago. But now we've moved to the real thing:
✨ Non-invasive retinal stimulation to elicit phosphenes.
Using dry electrodes — the same platform we've refined across hundreds of recording sessions — we are now delivering targeted electrical stimulation to the retina.
Phosphenes — the perception of light without actual light entering the eye — have long been a target of visual neuroprosthetics research. Achieving this non-invasively, without surgery, without gel, opens doors that were previously firmly shut.
What this could mean:
→ New tools for vision rehabilitation
→ Deeper understanding of the retina's electrical excitability
We're early. But we're seeing the light — literally.
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